100 points!
can someone help me with this !!! please and thank you :)

Answer:

D

Step-by-step explanation:

23 - (-8)

23 + 8 = 31°

The temperature rose 31 degrees.

l-8 -23l = l-31l = 31  Absolute value is asking the distance from zero.

Helping in the name of Jesus.

As a result, Bank Padarn's AER is 2.0186%. This shows that Bank Padarn gives a greater interest rate when compared to the AER provided by Banc Teilo (1.9%).

A benchmark 30-year fixed mortgage's current average interest rate is 6.91% as of today, Tuesdays, March 21, 2023, a decrease of 3 basis points from seven days ago. If you're looking to refinance your mortgage, the current average 30-year fixed interest rate of 6.93%, which has been constant over the past week.

We must convert a nominal rate provided by Bank Padarn to the an AER in order to contrast the two rates.

AER is calculated as (1 + r/n)n - 1 where r is just the nominal rate of return & n is the annual frequency of interest payments.

r = 1.98% and n = 12 for Banc Padarn (since interest is paid monthly). The algorithm yields the following results when we enter these values: AER Equals (1 + 0.0198/12)12 - 1 ≈ 0.020186 = 2.0186%

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The explicit form of the geometric sequence is an = 27 * (-2/3)^(n-1)

In a geometric sequence, each term is obtained by multiplying the previous term by a fixed number called the common ratio, denoted by r.

So, if we know the first term and the common ratio, we can find any term in the sequence, including the nth term, using the formula:

an = a1 * r^(n-1)

where a1 is the first term and an is the nth term.

To find the common ratio, we can divide any term by the previous term:

r = -18/27 = -2/3

Now we can use the formula to find the nth term.

an = 27 * (-2/3)^(n-1)

Therefore, the explicit form of the geometric sequence is an = 27 * (-2/3)^(n-1)

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The second table is the one which represents a linear function.

In mathematics, the terms "linear function" refer to two distinct but connected concepts: In calculus and related subjects, a polynomial function of degree zero or one with a graph that is a straight line is referred to as a linear function.

⇒ The first table does not represent a linear function because for two different values of x, there is same value for y.

⇒ The second table represents the linear function as it forms a straight line on the graph.

⇒ The third table does not represent a linear function because it does not have a constant slope.

⇒ The last table does not represent a linear function because it does not have a constant slope.

Hence, the second table represents a linear function.

As x is constant as 1, then all the y inputs will be in a straight vertical line

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Question: Which of the following tables represents a linear function?

A. x | −4   −1    0    1    2

   y | −4    2   −4   0    2

B. x |   1      1     1    1   1

   y | −3   −2   −1   0   1

C. x |  −6       −1      0       2        3

    y |  −7     [tex]\frac{-16}{3}[/tex]    −5     [tex]\frac{-13}{3}[/tex]     −4

D. x | −2       −1      0    2    4

    y | −4      [tex]\frac{-2}{3}[/tex]     −1     [tex]\frac{2}{3}[/tex]     1

By addressing the posed question, we can get the following conclusion: Volume equation of six tennis balls = 6 179.59 1077.54 cm

In mathematics, an equations is a promise that two expressions are equivalent. Two sides that are divided by the algebraic symbol (=) make up an equation. As an illustration, the claim "2x + 3 = 9" makes the statement "2x plus 3 equals the quantity "9." Finding the value or values of the variable(s) necessary for the equation to be true is indeed the goal of equation solving. Equations can include one or more parts and be simple or complex, regular or nonlinear. The formula "x2 + 2x - 3 = 0" raises the variable x to the second power. A line is utilized in many different areas of mathematics, such as algebra, calculus, and geometry. We can calculate the volume of the container and the volume of one tennis ball, and then check if the volume of six tennis balls is less than or equal to the volume of the container.

Volume of container = πr2h

Volume of container = π[tex](3.5)^2[/tex](40) ≈ 1540.48 cm

Volume of one tennis ball = 4/3 π[tex]r^3[/tex]

Volume of one tennis ball = 4/3 π[tex](3.5)^3[/tex] ≈ 179.59 cm

Volume of six tennis balls = 6 × volume of one tennis ball

Volume of six tennis balls = 6 × 179.59 ≈ 1077.54 cm

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(2, -6)

When a point (x,y) is rotated counterclockwise by 180° about the origin, the new point becomes (-x, -y) ie the new x coordinate becomes negative of the original x coordinate and the new y coordinate becomes the negative of the original y coordinate

So resulting point W' = (-(-2), -6) = (2, -6)

Answer:

(2, -6)

Step-by-step explanation:

When a point (x,y) is rotated counterclockwise by 180° about the origin, the new point becomes (-x, -y) ie the new x coordinate becomes negative of the original x coordinate and the new y coordinate becomes the negative of the original y coordinate

So resulting point W' = (-(-2), -6) = (2, -6)

The standard deviation of the normally distributed variable is given as follows:

s = 0.0434.

The z-score of a measure X of a normally distributed variable that has mean represented by [tex]\mu[/tex] and standard deviation represented by [tex]\sigma[/tex] is obtained by the equation presented as follows:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

The mean this problem is given as follows:

[tex]\mu = p = 0.2[/tex]

Considering a sample size of 85, the standard deviation is given as follows:

s = sqrt(0.2 x 0.8/85)

s = 0.0434.

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A tie costs 12 euros and a shirt costs 25 euros.

Let's start by assigning variables to the unknown values. Let x be the price of a tie, and let y be the price of a shirt. We know that y = x + 13, since a shirt costs 13 euros more than a tie.

We also know that we bought three shirts and two ties, and paid a total of 99 euros. Using this information, we can set up an equation

3y + 2x = 99

Here we have to use to substitution method, substituting y = x + 13, we get

3(x + 13) + 2x = 99

Simplifying this equation, we get

5x + 39 = 99

Subtracting 39 from both sides, we get

5x = 60

Dividing both sides by 5, we get

x = 12 euros

Now that we know the price of a tie, we can use y = x + 13 to find the price of a shirt

y = x + 13

y = 12 + 13

y = 25 euros

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The domain of the given exponential function is also all real numbers. We can calculate it in the following manner.

The given exponential function is obtained by taking the negative of the original function f(x) = 2^(-x+1) and then subtracting 1 from it. Since the original function has a horizontal asymptote at y=0 and the given function has a horizontal asymptote at y=1, we need to flip the graph of the given function over the x-axis to obtain the graph of the original function.

The point (0, -6) on the given graph corresponds to the point (0, 5) on the graph of the original function, and the point (1, -3) on the given graph corresponds to the point (1, 2) on the graph of the original function.

The general form of an exponential function is f(x) = a^x, where "a" is a positive constant. In this case, we have f(x) = 2^(-x+1), so "a" is equal to 2^1 = 2.

Since "a" is positive, the domain of the function is all real numbers. Therefore, the domain of the given exponential function is also all real numbers.

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John can run 4 miles in 40 minutes, so running 9 kilometers would take him approximately 56 minutes.

We're given that John can run 4 miles in 40 minutes. To find out how long it would take him to run 9 kilometers, we need to first convert 4 miles to kilometers.

One mile is equal to 1.60934 kilometers, so 4 miles is equal to 6.43736 kilometers (rounded to five decimal places).

Next, we can use the formula for speed:

Speed = Distance / Time

To solve for John's speed, we divide the distance he covered (6.43736 kilometers) by the time it took him to cover that distance (40 minutes):

Speed = 6.43736 km / 40 min ≈ 0.160935 km/min

Now we can use this speed to determine how long it would take John to run 9 kilometers. We can use the same formula as before, but this time we'll be solving for time:

Time = Distance / Speed

Substituting in the values we know:

Time = 9 km / 0.160935 km/min ≈ 55.8627 min

Rounding this answer to the nearest minute, we get:

Time ≈ 56 min

Therefore, it would take John approximately 56 minutes to run 9 kilometers.

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The measure of angle 4 is 45.6( nearest degree)

Two angles are complementary when the sum of the two angles is 90°. For example if x and y are complementary, then x+y = 90°.

Example of complementary angles are 50 and 40 , 30 and 60 , 25 and 65 e.t.c

Since angle 3 and angle 4 are complementary, therefore, 5x -15 + 3x+10 = 90

5x -15 + 3x+10 = 90

collect like terms

5x+3x -15 +10 = 90

8x -5 = 90

8x = 95

x = 95/8

x = 11.875

Therefore the measure of angle 4 is

3( 11.875) + 10

= 35.625 + 10

= 45.6 (nearest degree)

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An equation for the line of best fit is y = 5x.

The y-intercept of the line of best fit is equal to (0, 0).

The size of a store which Feline Delights could expect to sell 20 bags per day is 4,000 square footage.

Feline Delights could expect to sell 20 bags per day in an 11,000 square foot store.

In Mathematics and Geometry, the point-slope form of a straight line can be calculated by using the following mathematical equation:

y - y₁ = m(x - x₁)

Where:

First of all, we would determine the slope of this line;

Slope (m) = (y₂ - y₁)/(x₂ - x₁)

Slope (m) = (45 - 30)/(9 - 6)

Slope (m) = 15/3

Slope (m) = 5

At data point (6, 30), a linear equation in slope-intercept form for this line can be calculated as follows:

y - y₁ = m(x - x₁)

y - 30 = 5(x - 6)

y = 5x - 30 + 30

y = 5x

When y = 20, the store size is given by;

20 = 5x

x = 20/5 = 4

In thousands, we have:

x = 4,000 square footage.

When x = 11,000 square footage, the number of bags is given by;

y = 5x

y = 5(11)

y = 55 bags.

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The answer to the simplified expression is option D. 15d^2 - 31d - 12

Expansion is the process of multiplying a given set of terms in a bracket with other terms in another bracket. It can be done using the grid method of expansion.

Considering the given question to fill the blanks, we have;

       3d     +        1

5d  15d^2         5d

-12  -36d          -12

Thus, adding the terms one to another gives;

15d^2 + 5d - 36d - 12

15d^2 -31d - 12

The correct answer after simplifying the expression is: 15d^2 -31d - 12. Thus option D.

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Using the law of sine, the missing side of the triangle is approximately 4.01 units.

The law of sines states that for any triangle ABC with sides a, b, and c opposite to angles A, B, and C respectively

a / sin(A) = b/sin(B) = c / sin(C)

Using this law, we can find the missing side b as follows:

b/sin(B) = c/sin(C)

Since angle B and angle C are complementary, we can find angle C as:

C = 180 - A - B = 180 - 58 - 48 = 74 degrees

Now we have

b/sin(48) = 5/sin(74)

Solving for b, we get

b = (5 x sin(48))/sin(74) ≈ 4.01 units

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The given question is incomplete, the complete question is;

use the law of sines to find the missing side of the triangle

Answer:

see explanation

Step-by-step explanation:

the equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

(i)

y = 3x - 4

with slope m = 3 and y- intercept c = - 4

(ii)

y = - 3x + 7

with slope m = - 3 and y- intercept c = 7

Answer:

here we can see clearly,

Corrected analysis of errors : Vertex: (-2, -8), x-intercepts: (-1,0) and (6,0), y-intercept: (0,-8), Axis of symmetry: x = -2

What are the errors?

There are multiple errors in the given analysis which are given below.

1. The x-coordinate of the vertex is incorrectly given as 1 instead of -2.

2. The y-coordinate of the vertex is incorrectly given as 8 instead of -8.

3. The x-coordinate of the axis of symmetry is incorrectly given as 1 instead of -2.

4. The given x-intercepts are incorrect. The correct x-intercepts are (-1,0) and (6,0).

5. The given y-intercept is incorrect. The correct y-intercept is (0,-8).

Corrected analysis:

Vertex: (-2, -8)

x-intercepts: (-1,0) and (6,0)

y-intercept: (0,-8)

Axis of symmetry: x = -2

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As a result, the Frisbee's radius is 3 inches (rounded to the nearest hundredth) .

The distance from a circle's center to any point along its perimeter is known as the radius of a circle. It's typically indicated by "R" or "r" .

The distance around a circle's periphery is its circumference. It is the boundary across any two-dimensional circular surface measured linearly in one dimension.

C = 2πr, where C is the circumference and r is the radius, is the formula for calculating a circle's circumference.

This formula is rearranged to give us r = C /π 2 .

In this instance, we are aware that the Frisbee's circumference is 18.84 inches.

As a result, the radius can be determined using the formula r = C / 2π:

r = 18.84 / (2 * 3.14)

r = 18.84 / 6.28

r   = 3

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Answer:

sorry for my pen!......

Answer: To show that △WZY ≅ △YXW, we need to show that they are congruent by proving that all corresponding sides and angles are equal.

Given:

WZ⊥ZY and WX⊥XY, which implies ∠WZY = ∠YXW = 90°

∠ZYW ≅ ∠XWY (given)

WX ≅ ZY and WZ ≅ XY (given)

To prove:

△WZY ≅ △YXW

Proof:

By the given information, ∠WZY = ∠YXW = 90°.

By the given information, ∠ZYW ≅ ∠XWY.

Therefore, ∠WZY + ∠ZYW ≅ ∠YXW + ∠XWY. Combining these angles gives us ∠WZY + ∠ZYW = ∠YXW + ∠XWY.

Since the sum of interior angles in a triangle is 180°, we have:

∠WZY + ∠ZYW + ∠YZW = 180° for △WZY

∠YXW + ∠XWY + ∠YWX = 180° for △YXW

Substituting in the angle congruence (∠ZYW ≅ ∠XWY), we have:

∠WZY + ∠XWY + ∠YZW = 180° for △WZY

∠YXW + ∠ZYW + ∠YWX = 180° for △YXW

By the given information, WX ≅ ZY and WZ ≅ XY.

Therefore, by the Side-Angle-Side (SAS) congruence postulate, △WZY ≅ △YXW.

Hence, we have proved that △WZY ≅ △YXW.

Step-by-step explanation:

The percent increase in the premium for Marcia's life insurance policy is approximately 17.06%.

To calculate the percent increase in the premium for Marcia's life insurance policy, we can use the following formula:

[tex]$Percent increase = \frac{ (New premium - Initial premium)}{ Initial premium} \times 100[/tex]

First, we need to find the initial premium, which can be calculated using the formula for the present value of a term life insurance policy:

[tex]Initial premium = \frac{Face amount of the policy}{Present value factor}= \frac{120,000}{4.3295} = $27,730.25[/tex]

Assuming the same face amount and an interest rate of 5%, the new premium can be calculated as follows:

[tex]New premium= \frac{\text{Face amount of the policy}}{\text{Present value factor}} \ &= \frac{120,000}{3.6962} \ &= $32,466.72 \end{aligned}[/tex]

Now we can use the formula above to calculate the percent increase in the premium:

[tex]Percent increase= \frac{(\text{New premium} - \text{Initial premium})}{\text{Initial premium}} * 100 \ &= \frac{(32,466.72 - 27,730.25)}{27,730.25} * 100 \ &= 17.06% \end{aligned}[/tex]

Therefore, the percent increase in the premium for Marcia's life insurance policy is approximately 17.06%.

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Answer:

5/8

Step-by-step explanation:

1/4*2 4/8

1/4*2 1/2

1/4*5/2

5/8

The standard deviation of all the average cholesterol levels we get will be close to 15 mg/dl.

The standard deviation of the average cholesterol levels will be given by the standard error of the mean, which is calculated as

standard error of the mean = standard deviation / sqrt(sample size)

In this case, the sample size is 4, so we have

standard error of the mean = 30 / sqrt(4) = 15

Therefore, if we take many samples of 4 fourteen-year-old boys and average their cholesterol levels, the standard deviation of all the average cholesterol levels we get will be close to 15 mg/dl.

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Answer: The distance left after 25 days is 1280 miles

Step-by-step explanation:

To calculate the distance, we use the formula:

[tex]s=\dfrac{d}{t}[/tex]

where,

s = speed of the bicycle = 80 miles/day

t = time taken = 25 days

d = distance travelled = ? miles

Putting values in above equation, we get:

[tex]\text{d}=(80 \ \text{miles}/\text{day} \times 25 \ \text{days})=2000 \ \text{miles}[/tex]

Total distance to the destination = 3280 miles

Distance traveled in 25 days = 2000 miles

Distance left after 25 days = [3280 - 2000] = 1280 miles

Hence, the distance left after 25 days is 1280 miles

The Annual operating cost of the refrigerator = Energy consumed × Cost of electricity= 1324.74 kWh × $0.09 per kWh = $119.22 (approx.)Hence, the answer is $119.22 (approx.)

Given:Power consumed by the old refrigerator = 202 WAssuming the refrigerator operates for 18 hours every day.Cost of electricity is $0.09 per kWh.Solution:Power consumed by the old refrigerator in an hour = 202 WTime for which the refrigerator operates every day = 18 hours Energy consumed by the refrigerator in a day = Power consumed × Time = 202 W × 18 hours = 3636 Wh Energy consumed by the refrigerator in a year (365 days) = 3636 Wh × 365 days= 1324740 Wh = 1324.74 kWhCost of electricity is $0.09 per Therefore, Annual operating cost of the refrigerator = Energy consumed × Cost of electricity= 1324.74 kWh × $0.09 per kWh = $119.22 (approx.)Hence, the answer is $119.22 (approx.).

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the answer is (C) $0 is incorrect, and (B) $5,000.00 and (D) $45.00 are also incorrect. The correct answer is (A) $450.00.

what is insurance ?

Insurance is a contract between an individual or an entity (the insured) and an insurance company (the insurer), in which the insurer agrees to compensate the insured for financial losses or damages that occur due to unexpected events, in exchange for the payment of premiums by the insured.

Based on the information provided, the employee with a family plan is on the "Individual+Spouse" premium plan, which has a monthly premium of $450.00. This means that regardless of whether or not the employee visits a doctor or hospital, they are required to pay this amount every month to maintain their insurance coverage.

Therefore, the answer is (C) $0 is incorrect, and (B) $5,000.00 and (D) $45.00 are also incorrect. The correct answer is (A) $450.00.

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The number of days in which Meena would be able to complete the work alone is 24 days.

In order to determine the number of days in which Meena would be able to complete the work alone, we would have to assign variables to the amount of time taken by Mala, Meena, and Vinay, and then translate the word problem into an algebraic equation as follows;

Note: Combined work rate = 1/x + 1/y + 1/z

Based on the information provided, we have the following equations that models the work rate by each person;

1/(x + y) = 10 ⇒ 1/10 = x + y    ........equation 1.

1/(y + z) = 12 ⇒ 1/12 = y + z    ........equation 2.

1/(x + z) = 15 ⇒ 1/15 = x + z    ........equation 3.

x + y + y + z + x + z = 1/10 + 1/12 + 1/15

2(x + y + z) = 15/60

2(x + y + z) = 1/4

x + y + z = 1/8

From equation 2, we have:

x + (y + z) = 1/8

x + 1/12 = 1/8

x = 1/8 - 1/12

x = 1/24

x = 24 days.

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The percent of chocolate chips in the mixture is a total of 30% as supreme cookie dough has 25% chocolate chips and Magic cookie dough has 35% chocolate chips.

Let one cup be equal to one gram,

therefore, one cup or gram of supreme cookie dough has 25% of chocolate cookie dough

25% of 4 cups = 25/100 x 400

= 100 gm of chocolate cookie dough

35% of chocolate cookie dough in one cup of Magic cookie dough

35% of 4 cups = 35/100 x 400

= 140 gm of chocolate cookie dough

therefore the dough Samantha has prepared has a total of 140 + 100 gm of chocolate cookie dough,

whereas total dough = 4 cups of magic cookie dough + 4 cups of supreme cookie dough = 8 cups

we assumed one cup will be 100 gm, therefore, 8 cups will be 800 gm

let the percentage of the chocolate cookie dough be x:

therefore, x/100 = 240/800

x = 240/800 x 100

x = 30

therefore, the percent of chocolate chips in the mixture is a total of 30%

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Arithmetic operations helps us to determine the value of x for quotient of 20 divide 5 is subtracted from the difference of 16 and 6 is equals to the 6.

In arithmetic, a quotient can be defined as the result of the division of a number by any divisor. It is the number of times the divisor is contained in the dividend a quantity produced by the division of two numbers. The quotient can be determined by dividing the dividend with the divisor. Formula, Quotient = Dividend ÷ Divisor. We have to determine value of x which equals to quotient of 20 divide 5 is subtracted from the difference of 16 and 6. First we have to determine quotient 20 divides 5. Using quotient formula, quotient= 20 ÷ 5 = 4. So, Quotient is 4. Now, the difference of 16 and 6 that is equals to 16 minus 6 = 16 - 6 = 10. Thus, x = 16 - 6 - ( 20÷ 5)

=> x = 10 - 4

=> x = 6

Hence, required value of x is 6.

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Complete question :

The quotient of 20 divide 5 is subtracted from the difference of 16 and 6 equals to x. what is x?

Answer:

x=6

Step-by-step explanation:

20 ÷ 5 = 4. So, Quotient is 4. Now, the difference of 16 and 6 that is equals to 16 minus 6 = 16 - 6 = 10. Thus, x = 16 - 6 - ( 20÷ 5)

=> x = 10 - 4

=> x = 6

Hence, required value of x is 6.

Answer:  k = 67 4/5

Step-by-step explanation:

101 3/5 =k+33 4/5

first isolate your variable by subtracting 33 4/5 from both sides

101 3/5 - 33 4/5 = k

now subtract

to subtract 4/5 from 3/5, you have to borrow 5/5 or 1 whole from 101 and add it to 3/5.  5/5 + 3/5 = 8/5.  101 - 1 = 100.

so now you have

100 8/5 - 33 4/5 = k

100 - 33 = 67

8/5 - 4/5 = 4/5

your answer is 67 4/5

Check your work.

67 4/5 + 33 4/5 = 100 8/5 simplified to 101 3/5, our starting number.

solution is true so problem solved!

Answer: To estimate the mean length of the insects Kylie found, we can use the formula:

mean = (sum of (length * frequency)) / (sum of frequency)

We can calculate the sum of (length * frequency) by multiplying each length by its corresponding frequency and adding up the products. We can also calculate the sum of frequency by adding up all the frequencies. Using the table given, we have:

sum of (length * frequency) = (5 * 5) + (8 * 15) + (7 * 25) = 5 + 120 + 175 = 300

sum of frequency = 5 + 8 + 7 = 20

Substituting these values into the formula, we get:

mean = 300 / 20

= 15

Therefore, an estimate of the mean length of the insects Kylie found is 15 millimetres.

Step-by-step explanation: