Question 5(Multiple Choice Worth 2 points)
(Volume of Cylinders MC)

Coins are placed into a treasure chest, and each coin has a radius of 1.4 inches and a height of 0.0625 inches. If there are 230 coins inside the treasure chest, how many cubic inches of the treasure chest is taken up by the coins? Round to the nearest hundredth and approximate using π = 3.14.

0.38 in3
126.39 in3
353.88 in3
88.47 in3

Answers

Answer 1

The coins take up approximately 35.259 cubic inches of space inside the treasure chest.

What is Volume?

Volume refers to the amount of space occupied by a three-dimensional object, measured in cubic units.

Solution:

The volume of each coin is a cylinder with radius 1.4 inches and height 0.0625 inches. The volume V of one coin is given by:

V = πr²h

= 3.14 x 1.4² x 0.0625

= 0.1533 cubic inches (rounded to four decimal places)

Since there are 230 coins in the treasure chest, the total volume of the coins is:

Total volume = 230 x V = 230 x 0.1533 = 35.259 cubic inches (rounded to three decimal places)

Therefore, the coins take up approximately 35.259 cubic inches of space inside the treasure chest.

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Related Questions

Choose a number from the first column and a unit from the second column to make a measurement that is equivalent to 240 centigrams.

Answers

Answer is 240 centigrams = 2400 milligrams, 240 centigrams = 24 decigrams, 240 centigrams = 0.024 kilograms.

Define the term measurements?

Measurement is the process of quantifying an attribute or property of an object or event using a numerical or quantitative scale. The result of a measurement is a number or value that represents the magnitude or amount of the attribute being measured.

Centigrams, milligrams, decigrams, and kilograms are all units of measurement of mass in the metric system.

1 centigram (cg) = 10 milligrams (mg) in the metric system.

240 centigrams =  10×240 milligrams,

So, 240 centigrams is equal to 2400 milligrams.

1 centigram (cg) = 0.1 decigrams (dg)

240 centigrams =  0.1×240 decigrams

So, 240 centigrams is equal to 24 decigrams.

1 centigram (cg) = 0.0001 kilograms (kg)

240 centigrams =  0.0001×240 kilograms

So, 240 centigrams is equal to 0.024 kilograms.

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Diego’s family car holds 14 gallons of fuel. Each day the car uses 0.6 gallons of fuel. A warning light comes on when the remaining fuel is 1.5 gallons or less. Write and solve an inequality that represents this situation. Explain clearly what the solution to the inequality means in the context of this situation.

Answers

We fοund the inequality tο be  14 -0.6x ≤ 1.5 and sοlving this we fοund that the warning lights cοme οn after using fοr apprοximately 21 days.

What is meant by inequality?

In mathematics, inequalities specify the cοnnectiοn between twο nοn-equal numbers. Equal dοes nοt imply inequality. Typically, we use the "nοt equal sign" tο indicate that twο values are nοt equal. Hοwever several inequalities are utilised tο cοmpare the numbers, whether it is less than οr higher than. An inequality symbοl has nοn-equal expressiοns οn bοth sides. It indicates that the expressiοn οn the left shοuld be bigger οr smaller than the expressiοn οn the right, οr vice versa. Literal inequalities are relatiοnships between twο algebraic expressiοns that are expressed using inequality symbοls.

Given,

 The gallοns οf fuel that the car hοlds = 14 gallοns

Amοunt οf fuel used each day = 0.6 gallοns

When the remaining fuel is 1.5 gallοns οr less, warning lights cοme οn.

We can write an inequality fοr this situatiοn.

If x is the number οf days the car is used, then the warning lights cοme οn when,

 14 - 0.6x ≤ 1.5

This is the inequality expressiοn.

Sοlving,

12.5 ≤ 0.6x

x ≥ 12.5/0.6

x ≥ 20.8

Therefοre we fοund the inequality tο be 14 -0.6x ≤ 1.5 and sοlving this we fοund that the warning lights cοme οn after using fοr apprοximately 21 days.

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Sean writes 300 words each day while working on his Language Arts assignment. The assignment requires a minimum of 1800 words. Find the number of days Sean will work on the assignment to complete it.​

Answers

Total words/words per day=# of days
1800/300
6 days

Consider the line L(t) = (2 - 4t, 3 – 2t, -5 – 4t). Then: L is ____ to the plane 6x + 3y + 6z = -39 L is ____ to the plane 8x + 24y - 20z = -8 L is ____ to the plane 8x + 4y + 8z = 48 L is ____ to the plane 52 5y + 3z = -17

Answers

The line L(t) = (2 - 4t, 3 – 2t, -5 – 4t) is neither parallel nor perpendicular to any of the given planes.

The line L(t) = (2 - 4t, 3 – 2t, -5 – 4t) can be written in parametric form as: x = 2 - 4t, y = 3 - 2t, and z = -5 - 4t. The

direction vector of the line is (-4, -2, -4).

To determine if the line is parallel or perpendicular to a given plane, we can take the dot product of the direction vector of the line and the normal vector of the plane. If the dot product is zero, the line is parallel to the plane. If the dot product is nonzero, the line is neither parallel nor perpendicular to the plane.

For the plane 6x + 3y + 6z = -39, the normal vector is (6, 3, 6). The dot product of the direction vector of the line and the normal vector of the plane is (-4)(6) + (-2)(3) + (-4)(6) = -42. Since the dot product is nonzero, the line is neither parallel nor perpendicular to the plane.

For the plane 8x + 24y - 20z = -8, the normal vector is (8, 24, -20). The dot product of the direction vector of the line and the normal vector of the plane is (-4)(8) + (-2)(24) + (-4)(-20) = 8. Since the dot product is nonzero, the line is neither parallel nor perpendicular to the plane.

For the plane 8x + 4y + 8z = 48, the normal vector is (8, 4, 8). The dot product of the direction vector of the line and the normal vector of the plane is (-4)(8) + (-2)(4) + (-4)(8) = -56. Since the dot product is nonzero, the line is neither parallel nor perpendicular to the plane.

For the plane 52 5y + 3z = -17, the normal vector is (0, 52, 3). The dot product of the direction vector of the line and the normal vector of the plane is (-4)(0) + (-2)(52) + (-4)(3) = -112. Since the dot product is nonzero, the line is neither parallel nor perpendicular to the plane.

Therefore, the line L(t) = (2 - 4t, 3 – 2t, -5 – 4t) is neither parallel nor perpendicular to any of the given planes.

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A metal rod 9. 52 meters long is cut into 2 pieces. One piece is 0. 16 meters longer than 3 times the length of the other. Find the length of the longer piece in meters

Answers

The length of longer piece of metal rod on division into two pieces is 7.18 meters.

Let the measurement of first piece be x meters. So, the measurement of second piece will be -

Three times = 3x

0.16 meters longer = 3x + 0.16

Total measurement of second piece = 3x + 0.16 meters.

Now, total measurement = measurement of first piece + measurement of second piece

Total measurement = x + 3x + 0.16

9.52 = 4x + 0.16

4x = 9.52 - 0.16

4x = 9.36

x = 9.36/4

x = 2.34 meters

Length of longer piece = 3(2.34) + 0.16

Length of longer piece = 7.18 meters

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Find the surface area of each figure. Round your answers to the nearest tenth, if necessary.

Answers

Answer:

5: 52 m

6: 600 inches

7: 352 yards

8: 43 cm

Step-by-step explanation:

5: 5x5=25. 4x3/2=6. 5x3=15. 4x3/2=6

25+6+15+6=52

6: It is a cube that has 10 length sides. Each side's area is 10x10=100

There are 6 sides, so 6x100=600

7: Top and bottom: 8x8=64 (There are 2, one is top, one is bottom)

Sides (4 of them): 7x8=56

2(64)+4(56)=

128+224=

352

8: 4x3=12. 5x3/2=7.5. 5x3/2=7.5. 4x4=16.

12+7.5+7.5+16=

43 cm

Pls mark me brainliest if it helps :), have a very nice day/night!

Answer:

1. 254

2.100.8

Step-by-step explanation:

Find any irrational number between 5,25 and
5,26​

Answers

The irrational number between 5,25 and 5,26 is 2.5135145:

The irrational number between 5,25 and 5,26

2.5135145...

The number is non-terminating and non-recurring. Hence, it is an irrational number.

A real number that cannot be expressed as a simple fraction is called an irrational number.

It is impossible to express in terms of a ratio.

If N is irrational, it is not equal to p/q, where p and q are integers and q is not equal to 0.

Example: √2, √3, √5, √11, √21, π(Pi) are all irrational.

An irrational number is a real number that cannot be expressed as a fraction of two integers. In other words, it is a number that cannot be written as a simple fraction or a ratio of integers. Irrational numbers are decimal numbers that go on forever without repeating. Some famous examples of irrational numbers include pi (3.14159265...) and the square root of 2 (1.41421356...).

Irrational numbers have some interesting properties. For example, they are non-repeating and non-terminating, which means that their decimal expansions never repeat and never come to an end. This makes them difficult to work with, but also makes them important in mathematics and science. Irrational numbers are used in a variety of mathematical and scientific applications, including geometry, physics, and cryptography.

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Consider a home energy storage (battery) system that can store up to 2 units of energy. At every time step, there is a demand for energy in the home which is drawn from 0,1, 2 units with equal probability independent of the demands in the previous time steps. At every point in time, you have to satisfy the demand either by discharging the needed energy from the battery or purchasing power from the grid (or a combination of the two). You could also choose to purchase power from the grid to charge your battery. The grid energy price is either H(igh) or Low) according to a Markov chain (Price moves from H to L with probability p, and from L to H with probability q). (a) Model the decision making as an infinite horizon MDP where the objective is to minimize the discounted cost of energy purchased over an infinite horizon. (b) Write down a policy a of your choosing. Perform two steps of the operator Tn for your policy, followed by one step of T.

Answers

Pablo's monthly payments are $760.76

If Pablo pays the monthly fee each month, he will pay a 3.48% interest rate.

What is a Monthly Payment?

Monthly payments refer to the amount of money that is paid on a regular basis, typically every month, to repay a debt or loan over a specified period of time. The monthly payment is usually calculated based on the total amount borrowed, the interest rate, and the repayment period

How to solve

Given that:

Loan amount = $1400

Interest rate r = 5.7%

Time n = 5 years

To solve for monthly payment

using the formula

1400 * [tex]\frac{0.0157(1 +0.0517)^6^0}{(1 + 0.0517)^6^0 -1}[/tex]

= 760.76.

Pablo's monthly payments is $760.76

The total interest to be paid:

A = P(1+rt)

1400= 760.76 + 3803.8

= 3.48

Thus, if Pablo pays the monthly fee each month, he will pay 3.48% interest rate.

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A metal plate is supposed to be 15. 75cm long but after it was cut, it measured 15. 71 determine relative error

Answers

The relative error of the metal plate is -0.0025

The relative error compares the difference between the measured value and the actual value to the actual value itself. Mathematically, it's calculated as:

Relative Error = (Measured Value - Actual Value) / Actual Value

In this case, the metal plate was supposed to be 15.75 cm long, but it measured 15.71 cm after it was cut. Therefore, the measured value is 15.71 cm, and the actual value is 15.75 cm. Plugging these values into the formula for relative error, we get:

Relative Error = (15.71 - 15.75) / 15.75 = -0.0025

The relative error is negative because the measured value is less than the actual value. In other words, the measured value has an error of -0.25% relative to the actual value. This means that the measured value is 0.25% less than the actual value.

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Mr. Dela Cruz willed one-half of his estate to his eldest child, one-half of the remainder to his second child, and so on until his 4th child who is the youngest received 1.25 million. What was the total value of the estate?
a. 18.25 million
b. 20 million
c. 10 million
d. 6.26 million

Answers

Let x be the total value of the estate.

According to the problem, the youngest child received 1.25 million and the share of each child is half of the remainder of the estate after the previous child has received their share.

So, the fourth child received 1.25 million, which is half of what the third child received. Therefore, the third child received 2.5 million.

Similarly, the second child received 2 times what the third child received, which is 5 million.

Finally, the first child received 2 times what the second child received, which is 10 million.

Adding up all the shares, we get:

1st child: 10 million

2nd child: 5 million

3rd child: 2.5 million

4th child: 1.25 million

Total: 18.75 million

Therefore, the total value of the estate is 18.75 million, which is closest to option a, 18.25 million.

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The first three terms of an arithmetic sequence are as follows.
-8, -5, -2

Find the next two terms of this sequence.
-8, -5, -2,

Answers

Answer:

1, 4

Step-by-step explanation:

to find the next term in an arithmetic sequence add the common difference d to the previous term.

d = a₂ - a₁ = - 5 - (- 8) = - 5 + 8 = 3

then

a₄ = a₃ + d = - 2 + 3 = 1

a₅ = a₄ + d = 1 + 3 = 4

the next two terms are 1, 4

An online game company sells GTA 6 for $28. 19. An other online game company offers $21. 39 with DLC included. Which company has the better deal?

This is actually one my homework question-

Answers

Answer: The other game companies offer

Step-by-step explanation: Pretty much self-explanatory.

Using syathetic division, the Rational Root Theorem, and the Remainder Theorem, find the real zeroes of f. Use the real veroes and the Factor Theorem to factor f(x). f(x)=2x^(4)+17x^(3)+35x^(2)-9x-45

Answers

f(x) can be factored into f(x) = 2(x + 5)(x + 3/2)(x - 3)(x - 5/2).

How to find the real zeroes

To find the real zeroes of f(x) = 2x^(4) + 17x^(3) + 35x^(2) - 9x - 45 using synthetic division, the Rational Root Theorem, and the Remainder Theorem, we need to follow these steps:

1. Using the Rational Root Theorem, we can find the possible rational roots of f(x) by taking the factors of the constant term (-45) and dividing them by the factors of the leading coefficient (2). The possible rational roots are:

±1, ±3, ±5, ±9, ±15, ±45, ±1/2, ±3/2, ±5/2, ±9/2, ±15/2, and ±45/2.

2. Next, we will use synthetic division to test these possible roots and find the real zeroes of f(x). We will start with the smallest possible root, -45/2, and divide f(x) by (x + 45/2) using synthetic division. The result is a polynomial of one degree less than f(x).

3. We will then use the Remainder Theorem to check if the remainder of the synthetic division is 0. If the remainder is 0, then -45/2 is a real zero of f(x) and we can use the Factor Theorem to factor f(x) into (x + 45/2)(2x^(3) - 8x^(2) - 80x + 90).

4. We will repeat steps 2 and 3 with the remaining possible rational roots until we find all the real zeroes of f(x).

5. Once we have found all the real zeroes of f(x), we can use the Factor Theorem to factor f(x) into the product of linear factors and a constant. The real zeroes of f(x) are -5, -3/2, 3, and 5/2.

Therefore, f(x) can be factored into f(x) = 2(x + 5)(x + 3/2)(x - 3)(x - 5/2).

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12) 1 + √10 mult. 2, 1-√10​

Answers

Answer:

We can simplify this expression by using the formula (a + b)(a - b) = a^2 - b^2:

(1 + √10)(1 - √10) = 1^2 - (√10)^2 = 1 - 10 = -9

Therefore,

(1 + √10)(1 - √10) = -9

Now we can multiply by 2:

2(1 + √10)(1 - √10) = 2(-9)

2(1 - 10) = -18

So the final result is -18.

Bob is testing out his hypothesis that the number of defective products manufactured in the factory production run follows the binomial distribution. Suppose that the number of defective products was tabulated for 200 randomly selected production runs. Additionally, each production run has a lot size of 20 products, where each product may be either defective or not defective.
# of defective products Observed Frequency (out of 200 runs) 0 28 1 44 2 37 3 48 4 30 5 9 6 4 Test the if the number of defective products follows the hypothesized distribution at alpha = 1%. Show using critical region method.

Answers

We can conclude that the number of defective products

To test the hypothesis that the number of defective products follows the binomial distribution, we need to calculate the expected frequency for each category and compare it with the observed frequency using the chi-square test.

First, let's calculate the expected frequency for each category:

E(0) = 200 * (0.95)^20 = 7.64

E(1) = 200 * 20 * (0.95)^19 * (0.05)^1 = 32.15

E(2) = 200 * 190 * (0.95)^18 * (0.05)^2 = 67.53

E(3) = 200 * 1140 * (0.95)^17 * (0.05)^3 = 90.71

E(4) = 200 * 4845 * (0.95)^16 * (0.05)^4 = 85.64

E(5) = 200 * 15504 * (0.95)^15 * (0.05)^5 = 61.29

E(6) = 200 * 38760 * (0.95)^14 * (0.05)^6 = 34.71

Next, we calculate the chi-square test statistic:

X^2 = (28-7.64)^2/7.64 + (44-32.15)^2/32.15 + (37-67.53)^2/67.53 + (48-90.71)^2/90.71 + (30-85.64)^2/85.64 + (9-61.29)^2/61.29 + (4-34.71)^2/34.71 = 84.31

Since we have 7 categories, the degrees of freedom for the chi-square distribution is 7-1=6. The critical value for alpha=1% and df=6 is 16.81. Since the test statistic is greater than the critical value, we reject the null hypothesis that the number of defective products follows the binomial distribution.

Therefore, we can conclude that the number of defective products does not follow the hypothesized distribution at alpha=1%.

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what’s the answer of this

Answers

The slope is 3. After 1 second, the car's distance increases by 7 feet.

What is the slope-intercept form?

Mathematically, the slope-intercept form of the equation of a straight line is given by this mathematical expression;

y = mx + c

Where:

m represents the slope or rate of change.x and y are the points.c represents the y-intercept or initial value.

Based on the information provided, we have the following equation that represents the relationship between distance and time;

y = 3x + 4

At x = 1 second, the distance is given by;

y = 3(1) + 4

y = 3 + 4

y = 7 feet.

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Write a recursive formula for an, the nth term of the sequence 2, 6, 10, 14, ....

Answers

The recursive formula for an, the nth term of the sequence is a(n) = a(n - 1) + 2 where a(1) = 2

How to determine the recursive formula of the sequence

From the question, we have the following parameters that can be used in our computation:

2, 6, 10, 14, ....

The above definitions imply that we simply add 4 to the previous term to get the current term

Using the above as a guide,

So, we have the following representation

a(n) = a(n - 1) + 2

Hence, the sequence is a(n) = a(n - 1) + 2 where a(1) = 2

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The height (y) (in feet) of a ball thrown by a child is y = - 1/16 x^2 + 2x + 3
where x is the horizontal distance in feet from the point at which the ball is thrown. (a) How high is the ball when it leaves the child's hand?____ feet (b) What is the maximum height of the ball?____ feet (c) How far from the child does the ball strike the ground?____ feet

Answers

(a) The height of the ball when it leaves the child's hand is 3 feet.

(b) The maximum height of the ball is 19 feet.

(c) The ball will strike the ground approximately 33.44 feet from the child.

(a) This is because when x = 0 (the point at which the ball is thrown), the equation simplifies to y = 3.

(b) The maximum height of the ball can be found by finding the vertex of the parabola. The x-coordinate of the vertex is -b/2a, where a = -1/16 and b = 2. So, x = -2/(-1/8) = 16. Plugging this value back into the equation gives us the maximum height: y = -1/16(16)² + 2(16) + 3 = 19 feet.

(c) The ball strikes the ground when y = 0. Setting the equation equal to 0 and solving for x gives us:

0 = -1/16 x² + 2x + 3

Multiplying both sides by 16 to eliminate the fraction gives us:

0 = -x² + 32x + 48 = x² - 32x - 48

Using the quadratic formula, we find that x = (32 ± 8√19)/2 or x ≈ 33.44 and x ≈ -1.44

Taking the positive value, the distance from the child to where the ball strikes the ground is approximately 33.44 feet.

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in 2002, there was about 150 wolves yellowstone national park. From 2002 to 2003, the wolf population increased by 16%. then from 2003 to 2005 it decreased by 32%.

Answers

The response to the given question would be that Therefore, after equation growing to 174 in 2003, the wolf population in Yellowstone National Park dropped from 150 in 2002 to 118.32 in 2005.

What is equation?

When two statements are connected by a mathematical equation, the equals sign (=) implies equality. An equation in algebra is a mathematical statement that proves the equivalence of two mathematical expressions. For instance, the equal sign separates the numbers in the equation 3x + 5 = 14. It is possible to determine the relationship between the two sentences on either side of a letter using a mathematical formula. The logo for the particular piece of software is frequently the same. as 2x - 4 = 2, for instance.  

beginning with a wolf population of 150 in 2002:

The number of wolves grew by 16% in 2003. We may multiply the initial population by 1.16 (100% + 16% = 116%) to determine the increase:

150 times 1.16 is 174 wolves.

There was a 32% decline in the wolf population between 2003 and 2005. We may multiply the population in 2003 by 0.68 (100% - 32% = 68%) to determine the decline:

174 times 0.68 equals 118.32 wolves (rounded to two decimal places)

Therefore, after growing to 174 in 2003, the wolf population in Yellowstone National Park dropped from 150 in 2002 to 118.32 in 2005.

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I need some help on both of my question!

Answers

The value  of x for the given  triangle  is x = 8.4 units. 2. For the given triangle the value of x is 2941.17 m.

What are vertically opposite angles?

The opposing angles created by the junction of two lines are known as

vertical angles

or vertically opposed angles. A pair of angles that are vertically opposed to one another are always equal. Moreover, a vertical angle and the angle to which it is next are

supplementary angles

, meaning their sum is 180 degrees.

The given triangle is a right triangle.

Using the trigonometric functions we have:

tan (35) = opposite / adjacent = x / 12

0.7 (12) = x

x = 8.4

Hence, the value of x for the given triangle is x = 8.4 units.

For the second figure, using the alternate interior angles we have angle corresponding to the segment x as 10 degrees.

Using the trigonometric function we have:

sin (10) = opposite / hypotenuse = 500/x

x = 500/0.17

x = 2941.17

Hence, the value of x is 2941.17 m.

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The famous handshake problem: Imagine five students sitting
around a table. How many handshakes do occur when they shake hands
with each other exactly once? Draw and write about your
reasoning.

Answers

To solve the handshake problem for five students sitting around a table, we need to count the number of unique handshakes that can occur between them. We can start by picking one student as the first handshaker, who then shakes hands with the four other students. This gives us a total of four handshakes.

Next, we can choose a different student as the first handshaker and repeat the process. This gives us another four handshakes, but we have to be careful not to count any handshakes twice.

For example, if Student A shakes hands with Student B first, and then we choose Student B as the first handshaker, we will count the handshake between A and B twice.

To avoid this, we can divide our total count of handshakes by two. This is because each handshake involves two people, so we will count each handshake twice if we simply multiply the number of people by the number of potential handshakes (i.e., 5 x 4 = 20 potential handshakes).

Therefore, the number of unique handshakes between five students sitting around a table is:

(5 x 4) / 2 = 10

So there are 10 handshakes that occur when five students shake hands with each other exactly once

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What is the range of f(x) = 3^x?
A. All real numbers greater than or equal to 3
B. All real numbers
C. All real numbers greater than 3
D. All positive real numbers

Answers

Find the domain by finding where the function is defined. The range is the set of values that correspond with the domain.
B.All real numbers

Find the unit rate :


Running 2. 3km in 7 minutes

Answers

The unit rate of running 2.3 km in 7 minutes is 5.48 metres per second.

Unit rate can be defined as a measure used to represent how many units of one type of quantity corresponds to one unit of anther type of quantity.

Here the distance is given in kilometres (km) which can be converted into metres by multiplying by 1000 as,

2.3 km = 2.3*1000 metres

= 2300 metres

Here the time taken to cover 2.3 km is 7 minutes which can be converted ito seconds by multiplying by 60 as,

7 minutes= 7*60 seconds

= 420 seconds

Hence the unit rate of running 2.3 km in 7 minutes expressed in metre per second is calculated as = 2300 metres / 420 seconds

= 5.4761 metres per second

= 5.48 metres per second (approximately)

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Jaicee's mom says she has an hour before bed. Jenny spends 1/3 of the hour texting a friend and 1/4 of the time brushing her teeth and putting on pajamas. She spends the rest of the time reading her book. How many minutes did Jaicee read.

Answers

Answer:

Jaicee (Jenny?) can spend 25 minutes reading.

Step-by-step explanation:

1 hour is 60 minutes.



Multiply to find

1/3 of 60 minutes.

1/3 × 60

= 60/3

= 20

She spends 20 minutes texting.

Multiply to find 1/4 of 60 minutes.

1/4 × 60

= 60/4

= 15

She spends 15 minutes brushing teeth and putting on pajamas.

Subtract 20 and 15 from 60, to see what's left.



Used up time:

20 + 15

= 35

She used up 35 minutes texting and prepping for bed.

60 - 35

= 25

She has 25 minutes left for reading.

find the value of x,
de=5

Answers

The value of x is 10.

What is Midsegment of a Triangle?

Midsegment of a triangle is defined as the line segment joining the midpoints of two sides of a triangle.

Every triangle will have three mid segments.

Given a triangle ABC.

Given the length of the midsegment DE = 5.

By the "Triangle Mid Segment Theorem", any midsegment of a triangle connecting two sides is parallel to the third side and the length is half of the length of the third side.

DE is the mid segment.

AB is the parallel side to DE.

DE = AB / 2

5 = x / 2

x = 10

Hence the length of the third side is 10.

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Tom used a photocopier to dilate the design for a monorail track system. The figure shows the design and its photocopy: Two irregular quadrilaterals ABCD and EFGH are drawn. EFGH is the photocopy of design ABCD. AB measures 17 meters, AD measures 7 meters. No dimensions are shown on EFGH. The ratio of BC:FG is 1:2. What is the length, in meters, of side EH on the photocopied image? 7 14 17 34

Answers

In the congruent geometry ,  length of EH is 14 meters .

What is congruent geometry?

In a congruent geometry, the shapes that are so identical. can be superimposed on themselves.

Two objects that are identical in terms of their dimensions and shape are said to be congruent in geometry. Further, two shapes are said to be congruent to one another if they can be turned, flipped, or moved in the same direction.

As a result, two congruent figures that have been drawn on a piece of paper can be cut out and positioned over one another to perfectly match.

Here, The figure shows the design and its photocopy. The ratio of BC: FG is 1:2.

Since the two figures are congruent

BC/FG= AD/EH

1/2 = 7/EH    (from figure AD = 7 )

EH = 2*7

EH = 14 m

Thus, the required length of EH is 14 meters.

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Rewrite the quantity as an algebraic expression of \( x \) and state the domain on which the equivalence is valid. \[ \csc (\operatorname{arccot}(x))= \] Domain:

Answers

The algebraic expression of \(\csc (\operatorname{arccot}(x)) \) is \(\frac{x}{\sqrt{1+x^2}}\) and the domain on which the equivalence is valid is \((-\infty, 0) \cup (0, \infty)\).

The quantity \[ \csc (\operatorname{arccot}(x)) \] can be rewritten as an algebraic expression of \(x\) using the following steps:

1. Recall that \(\operatorname{arccot}(x) \) is the inverse function of \(\cot(x) \), which means that \(\cot(\operatorname{arccot}(x)) = x \).

2. Use the identity \(\cot(x) = \frac{1}{\tan(x)} \) to rewrite the expression as \[ \csc (\operatorname{arccot}(x)) = \csc \left( \arctan \left( \frac{1}{x} \right) \right) \]

3. Recall that \(\csc(x) = \frac{1}{\sin(x)} \) and use the identity \(\sin(\arctan(x)) = \frac{x}{\sqrt{1+x^2}} \) to rewrite the expression as \[ \csc (\operatorname{arccot}(x)) = \frac{\sqrt{1+\left( \frac{1}{x} \right)^2}}{\frac{1}{x}} = \frac{x}{\sqrt{1+x^2}} \]

Therefore, the algebraic expression of \(\csc (\operatorname{arccot}(x)) \) is \[ \frac{x}{\sqrt{1+x^2}} \]

The domain of this expression is all real numbers except \(x=0\), since division by zero is undefined. Therefore, the domain on which the equivalence is valid is \(x \neq 0\), or in interval notation, \((-\infty, 0) \cup (0, \infty)\).

In summary, the algebraic expression of \(\csc (\operatorname{arccot}(x)) \) is \(\frac{x}{\sqrt{1+x^2}}\) and the domain on which the equivalence is valid is \((-\infty, 0) \cup (0, \infty)\).

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Express​ f(x) in the form
f(x)=(x−k) q (x)+r for the given value of k.
f(x) = 4x^3+ x^2+ x − 9​, k = −1
f(x)=

Answers

By applying synthetic division concept, it can be concluded that f(x) = 4x³ + x² + x - 9 can be expressed as f(x) = (x + 1)(4x² -3x + 4) - 13

Synthetic division is a shorthand way of dividing polynomials where we can divide the coefficients of the polynomial by omitting variables and exponents. As a result, we get the coefficient of the quotient and the remainder.

Polynomial remainder theorem states that the value of p in argument b is equal to the remainder of the polynomial division p(x) / (x - b). Specifically, p(x) is divided by x - b with a remainder of zero if, and only if, b is a root of p.

We have the following polynomial:

f(x) = 4x³ + x² + x - 9

and we have k = -1

We will divide the polynomial f(x) by (x + 1). The steps are as follows:

1. Put the coefficients in a row and multiply the outside coefficient by the divisor: 4(-1)= -4

2. Add the inside coefficient to the product from the previous step: -4 + 1 = -3

3. Multiply the result from the previous step by the divisor: -3(-1) = 3

4. Add the next coefficient to the product from the previous step: 3 + 1 = 4

5. Multiply the result from the previous step by the divisor: 4(-1) = -4

6. Add the last coefficient to the product from the previous step: -4 - 9 = -13

Now we take the first coefficient and the result of the sum steps, we get the following numbers: 4, -3, 4, -13

Then we can write the expression as follows: 4x³ + x² + x - 9 = (x + 1)(4x² - 3x + 4) - 13

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There is a Cyberchallenge I am trying to solve but I am super beginner and have no clue even though I read through different sources. This needs I guess to be solved with browser dev tools and curl web requests. Can anybody help for me to understand it and apply it step by step? Thank you. Here is the description:
Maths at Light Speed: Intern, I hope you know how to use a calculator? Of course you do. So, in theory you should be able to bypass a security gateway to a warehouse we believe holds clues to the whereabouts of a gang we are in hot pursuit of. The thing is, the gateway was created by someone who loves doing everything super fast! That means you only get 0.1 seconds to answer the question asked by the gateway. Can you find a way around it?
Tip: Bypass the calculator lock to get the flag.

Answers

To solve this Cyberchallenge, you will need to use browser dev tools and curl web requests.

Here are the steps to do it:
1. Open the browser dev tools by pressing F12 on your keyboard or right-clicking on the page and selecting "Inspect Element".
2. Go to the "Network" tab in the dev tools.
3. Start a curl web request by typing "curl" followed by the URL of the security gateway in the command line.
4. Add the "-v" option to the curl command to see the headers and response body of the request.
5. Look for the question asked by the gateway in the response body.
6. Use a calculator to quickly calculate the answer to the question.
7. Add the "-d" option to the curl command followed by the answer to the question to send the answer as a POST request.
8. Look for the flag in the response body of the POST request.
I hope this helps you understand how to solve the Cyberchallenge.

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help me please i need help

Answers

the minimum value of c is 20 at (x, y)

= (9, 2)

hope this helps!
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