Bradenton Bakery is baking a cake for a customer's quinceañera. The cake mold is shaped like a cylinder with a diameter of 10 inches and height of 7 inches.

Which of the following shows a correct method to calculate the number of cubic units of cake batter needed to fill the mold? Approximate using pi equals 355 over 113.

V equals 355 over 113 times 5 squared times 7
V equals 355 over 113 times 7 squared times 5
V equals 355 over 113 times 7 squared times 10
V equals 355 over 113 times 10 squared times 7

Answers

Answer 1

The correct method to calculate the number of cubic units(volume) of cake batter needed to fill the mold is option (a) , i.e V equals 355 over 113 times 5 squared times 7.

What is mensuration?

Mensuration is the branch of mathematics concerned with the study of various geometric shapes, their areas and volumes. In a broad sense, it is about the process of measurement. Measurement is a branch of mathematics. That is measurement

Solution:

Given, Diameter = 10 inches

               Radius = 5 inches

                Height = 7 inches

Volume of cylinder = πr²h

                                = (355/113)×5²×7

                                = 3.14×25×7

                                 = 549.77 inches³

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Related Questions

I need help with B! If sin theta = 7/10, theta in quadrant II, find the exact value of:

Answers

The actual value of cos θ is -(51)/10 based on the information provided.

What does value mean to you?

Noun. Values in plural. Definition of value from the Britannica dictionary. 1.: the monetary value of something, often known as its price or cost.

The Pythagorean identity can be used to determine the value of cos θ if sin θ = 7/10 and is θ in quadrant II:

cos² θ + sin² θ = 1

cos² θ + (7/10)² = 1

cos² θ + 49/100 = 1

cos² θ = 51/100

cos θ = ±√(51/100)

Since θ is in quadrant II, cos θ is negative. Therefore,

cos θ = -√(51/100)

Putting it more briefly,

cos θ = -(√51)/10

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Find all the missing angles in the diagram below. Explain how you used two different angle theories to find at least two missing angles.

Answers

The measures of the angles in the parallel lines is

m∠a = 97°

m∠b = 15°

m∠c = 68°

m∠d = 68°

What are Parallel Lines Cut by Transversal?

Straight, equally spaced lines that never cross each other and are on the same plane are called parallel lines. The angles that are created when any two parallel lines are intersected by a line (referred to as the transversal) have a relationship. Corresponding angles, Alternate Interior Angles, Alternate Exterior Angles, and Consecutive Interior Angles are some of the several pairs of angles that are created at this intersection.

Corresponding angles

When two parallel lines are intersected by a transversal, the corresponding angles have the same relative position

Alternate Interior Angles

Alternate interior angles are formed on the inside of two parallel lines which are intersected by a transversal.

Alternate Exterior Angles

The pairs of angles formed on either side of a transversal that divides two parallel lines are known as alternate exterior angles.

Consecutive Interior Angles

When two parallel lines are cut by a transversal, the pairs of angles formed on the inside of one side of the transversal are called consecutive interior angles or co-interior angles.

Given data ,

Let the two parallel lines be represented as l and m

Now , the transversal line is t

The measure of m∠a = 97° ( corresponding angles )

The measure of m∠d = 180° - 112° ( angles in a straight line = 180° )

So , the measure of m∠d = 68°

The measure of m∠c = measure of m∠d ( alternate interior angles )

So , the measure of m∠c = 68°

From the triangle formed by the intersection of lines ,

The measure of m∠b = 180° - ( a + d ) ( angles of a triangle = 180° )

So , the measure of m∠b = 180° - ( 97° + 68° )

The measure of m∠b = 15°

Hence , the measures of angles are solved

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i broke my arm and fell behind if someone can help me solve these worksheets to help get me back on track understanding my math, you don't have to do all of them but if you did that would be amazing. Please and thankyou.

Answers

yes so basically the math you’ll be needing to do is

I’m desperate please help
On a snow day, Alexandra created two snowmen in her backyard. Snowman A
was built to a height of 52 inches and Snowman B was built to a height of 38
inches. The next day, the temperature increased and both snowmen began to
melt. At sunrise, Snowman A's height decrease by 3 inches per hour and
Snowman B's height decreased by 2 inches per hour. Let A represent the
height of Snowman A t hours after sunrise and let B represent the height of
Snowman B t hours after sunrise. Write an equation for each situation, in
terms of t, and determine the interval of time, t, when Snowman A is taller
than Snowman B.

Answers

Answer:

Step-by-step explanation: The equation should be

A = 35 - 4t

B = 50 - 7t

And, the Height = 15 inches

Calculation of the equation and height;

Since

Height of snowman A = 35 inches

Height of snowman B = 50 inches

Height decrease of snowman A = 4 inches per hour

Height decrease of snowman B = 7 inches per hour

Here, t = number of hours

So, the equation should be

A = 35 - 4t      

B = 50 - 7t      

Now for the same height

35 - 4t = 50 - 7t

-4t + 7t = 50 - 35

3t = 15

t = 15

So,

A = 35 - 4(5) = 35 - 20 = 15 inches

B = 50 - 7(5) = 50 - 35 = 15 inches

8(3n-2) + 1/2 (10n-7)

Answers

Answer:

29n - 39/2.

Step-by-step explanation:

To simplify the expression 8(3n-2) + 1/2 (10n-7), we can start by using the distributive property of multiplication over addition to simplify the terms inside the parentheses:

8(3n-2) + 1/2 (10n-7) = (83n - 82) + (1/2 * 10n - 1/2 * 7)

This gives us:

24n - 16 + 5n - 7/2

Next, we can combine like terms:

24n + 5n - 16 - 7/2 = 29n - 16 - 7/2

Finally, we can simplify the expression by finding a common denominator for -16 and -7/2:

29n - 16 - 7/2 = 29n - 32/2 - 7/2 = 29n - 39/2

Therefore, 8(3n-2) + 1/2 (10n-7) simplifies to 29n - 39/2.

Answer is 29n - 19 1/2
(or 29n - 39/2 )

Step by step

To solve we will use distribution multiplication.
Multiply the number outside the ( ) by all the numbers inside the ( ) and add them together.

8 ( 3n -2 ) + 1/2 ( 10n - 7)

24n -16 + 5n - 3 1/2
Combine like terms

(24n + 5n) and (-16 -3 1/2)

29n - 19 1/2 is your answer

*you can keep - 7/2 as an improper fraction, where I changed it to a mixed number -3 1/2.
Your answer would be 29n - 39/2

CAN SOMEONE HELP? The answer has to be decimal.✨

Answers

The angle of elevation θ is equal to 1.13186 in radian rounded to five decimal place.

What is an angle of elevation

The angle of elevation is the angle between the horizontal line and the line of sight which is above the horizontal line.

We shall evaluate for the angle of elevation θ in degree, and then convert the result to radian as follows:

θ = tan⁻¹(4255/2000)

θ = 64.82482°

we multiply by π/180 to convert to radian;

θ' = 64.82482° × π/180

θ' = 1.13186 rounded to five decimal place.

Therefore, the angle of elevation θ is equal to 1.13186 in radian rounded to five decimal place.

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The box and whisker plot shows the scores in the science test of two classes based on the distribution of data which observation is not correct

Answers

Based on the distribution of data, the box and whisker plot displays the results of the scientific test for two classes. It is incorrect to say that both sections have the same value for the third quartile.

The formulation of partial differential equation solutions uses distribution generalized functions. The likelihood of a specific value or range of values for a variable is known as the probability distribution. Cumulative distribution function, where the likelihood of a value not exceeding a certain value depends on that value. A list of the values recorded in a sample, or a frequency distribution. In coding theory, there are two types of distribution: inner and outer. distribution of a portion of a manifold's tangent bundle.Term distribution: the state of having all members of a category present. The distributive law from elementary algebra is generalized by the property of binary operations known as distributivity. the distribution.

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Plot the point (4,5) on the graph

Answers

Answer:

I don't know if this helps.

Need help with the bottom two a little confuse

Answers

Answer:

the third one

Step-by-step explanation:

the third one

An object is launched directly in the air at a speed of 16 feet per second from platform located 7 feet above the ground. The position of the object can be modeled using the function[tex]f(t)=-16^2+16t+7[/tex], where t is the time in seconds and f(t) is the height, in feet, of the object. What is the maximum height, in feet, that the object will reach?

Answers

Step-by-step explanation:

To find the maximum height of the object, we need to determine the vertex of the parabolic function f(t) = 16t^2 + 16t + 7.

The vertex of a parabola in the form f(t) = at^2 + bt + c is given by (-b/2a, f(-b/2a)). In this case, a = 16, b = 16, and c = 7, so the vertex is:

(-b/2a, f(-b/2a)) = (-16/(216), f(-16/(216))) = (-1/2, f(-1/2))

To find f(-1/2), we can substitute t = -1/2 into the function:

f(-1/2) = 16(-1/2)^2 + 16(-1/2) + 7 = 8 - 8 + 7 = 7

Therefore, the vertex is at (-1/2, 7). This means that the maximum height of the object is 7 feet above the ground.

Alternatively, we could also use the fact that the maximum height occurs at the vertex of the parabola, which is the point where the derivative of the function is zero. The derivative of f(t) is:

f'(t) = 32t + 16

Setting this equal to zero and solving for t, we get:

32t + 16 = 0

t = -1/2

So the maximum height occurs at t = -1/2, which corresponds to the vertex of the parabola, and the maximum height is 7 feet.

Which number can be placed in the blank to make this number sentence true? In other words, 316
times which number equals 1?

Answers

The number that can be placed in the blank to make the number sentence true is given as follows:

1/316.

How to solve the number sentence?

The number sentence for this problem is given as follows:

"316 times which number equals 1".

The number is unknown, hence the variable that represents the number is given as follows:

x.

The times word means a multiplication operation, hence the expression is given as follows:

316x = 1.

Now we must simply solve the expression 316x = 1 for the variable x, applying the division, which is the inverse operation of the multiplication, hence:

x = 1/316.

Which is the number that satisfies the number sentence.

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Can someone please help me? Which triangles are similar to △ABE?

Answers

Answer:

it should be DCE

Step-by-step explanation:

Since both ABE and DCE are similar because because they are both corresponding angels that are congruent.  I'm sorry i couldn't think of another triangle but I'm hoping that at least helped a  bit

In AABC, G is the centroid and DC = 36.
Find DG and GC. Help me please!

Answers

The lengths DG and GC are 12 and 24 units respectively

How to determine the lengths DG and GC

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

G is the centroid and DC = 36.

The centrod divides the triangle in 1 : 2

Using the above as a guide, we have the following:

DG : GC = 1 : 2

Multiply by 12

So, we have

DG : GC = 12 : 24

12 and 24 add uo to 36

This means that

DG = 12 and GC = 24

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Please help me answer this

Answers

Answer:

x = 229

Step-by-step explanation:

x = 467 - 238

x = 229

You need 8 feet of copper pipe for a plumbing job. You have two options.


Option 1: Pipe for $1.50 per foot and a rebate offering $2.00 off the total


Option 2: Pipe for $1.75 per foot and a coupon offering $0.25 off each foot


You find a third company that offers pipe at $1.50 less than the total cost of the better deal between Option 1 and Option 2.

What does the third company charge for the 8 feet of copper pipe?

$8.50
$10
$10.50
$12
$12.25

Answers

The charge for the third company for the 8 feet of copper pipe as required to be determined is; $8.50.

What is the charge for the 8 feet of copper pipe from the third company?

As evident from the task content;

For the first company; Pipe for $1.50 per foot and a rebate offering $2.00 off the total.

Therefore, total charge is; 8(1.50) - 2 = $10.

For the second company; Pipe for $1.75 per foot and a coupon offering $0.25 off each foot.

Therefore, total charge is 8(1.75) - 8(0.25) = $12.

Hence, since the better deal is; $10.

Ultimately, the charge of the third company whose offer is; $1.50 less than the charge of the better deal is; 10 - 1.50 = $8.50.

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aleks initial knowledge check
Line 1 passes through (-4,7) and (-2,2)
NEED ANSWER ASAP

Answers

Answer:

Step-by-step explanation:

Line 1: (2 - 7)/(-2 + 4) = -5/2

Line 2: (-1 + 8)/(0 + 5) = 7/5

Line 3: (8 + 2)/(-2 -2)= 10/-4 = -10/4 = -5/2

Line 1 and Line 2: Neither

Line 1 and Line 3: Parallel

Line 2 and Line 3: Neither

please help me out i need an actual answer

Answers

The answer of the given question based on the cost of mailing is , the cost of mailing a 2.5-ounce letter to Vienna, Austria would be $6.63 (rounded to the nearest cent).

What is Equation?

An equation is  mathematical statement that shows  two expressions are equal. It contains variables, constants, and mathematical operations like  addition, subtraction, multiplication, and division.

For example, a simple equation could be:

2x + 3 = 9

The equation y = 0.25x + 6.00 represents the cost y of mailing a letter to Vienna, Austria based on the weight x of the letter in ounces. The flat rate of $6.00 is represented by the constant term 6.00 in the equation, and the additional charge of $0.25 per ounce is represented by the coefficient of x, which is 0.25.

To use this equation to determine the cost of mailing a specific letter, you would need to know the weight of the letter in ounces. You could then substitute this value for x in the equation and solve for y, which would give you the cost of postage in dollars.

For example, if a letter weighs 2.5 ounces, you could plug in x = 2.5 into the equation:

y = 0.25(2.5) + 6.00

y = 0.625 + 6.00

y = 6.625

So the cost of mailing a 2.5-ounce letter to Vienna, Austria would be $6.63 (rounded to the nearest cent).

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Write equation to represent the new function Vertically stretched by a factor of 4, then translated 3 units right.​

Answers

Answer:

Suppose the original function is denoted by f(x). To represent the new function that is vertically stretched by a factor of 4 and then translated 3 units to the right, we can use the following equation:

g(x) = 4 f(x - 3)

In this equation, f(x - 3) represents the original function f(x) translated 3 units to the right, and the multiplication by 4 stretches the function vertically by a factor of 4. Therefore, g(x) represents the new function that is vertically stretched by a factor of 4 and then translated 3 units to the right.

Step-by-step explanation:

What is the variability of the mean is 14 and the MAD is 3.2

Answers

Therefore, the estimated mean is roughly 0.154, but without more data, we are unable to calculate the SEM or group size.

Define mean.

The total of all values divided by all of the values constitutes the result of a set, also called as the arithmetic mean. It is considered to be the most popular central trend indicator, and the word "mean" is commonly used to describe it. multiply the total amount of numbers in the library by the overall amount of values inside the gathering to get this result. Either original data or data that's been combined into frequency charts can be used for calculations. The average of a figure is known to as the average.

Here,

Given a normal distribution, the MAD and standard deviation (SD) are roughly inversely proportional to one another as follows:

=> MAD = 1.4826 × SD

As a result, we can calculate the standard deviation as follows:

=> SD = MAD / 1.4826

Since the MAD in this instance is provided as 3.2, we can calculate the standard deviation as follows:

=> SD ≈ 3.2 / 1.4826 ≈ 2.16

The standard error of the mean (SEM), which can be determined as follows, then provides the variability of the mean.

=> SEM ≈ SD / sqrt(n)

=> CV Equals SD/mean

To find the mean, we can change this equation as follows:

a) Mean Equals SD / CV

With the estimated numbers for SD and CV substituted, we obtain:

=> mean ≈ 2.16 / 14 ≈ 0.154

Therefore, the estimated mean is roughly 0.154, but without more data, we are unable to calculate the SEM or group size.

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The table shows the magnitudes of the earthquakes that have occurred in the past 10 years. Use the frequency distribution to construct a histogram. Does the histogram appear to be​ skewed? If​ so, identify the type of skewness.
Earthquake magnitude
Frequency

​5.0-5.9
13
​6.0-6.9
14
​7.0-7.9
9
​8.0-8.9
4
​9.0-9.9
3
Question content area bottom
Part 1
Construct the histogram. Choose the correct graph below.
A.
5
6
7
8
9
10
0
5
10
15
Earthquake magnitude
Frequency



A histogram with horizontal axis labeled Earthquake magnitude from 5 to 10 in intervals of 1 and vertical axis labeled Frequency from 0 to 15 in intervals of 5 contains vertical bars with heights as follows: 5 to 6, 13; 6 to 7, 14; 7 to 8, 9; 8 to 9, 4; 9 to 10, 3.
B.
5
6
7
8
9
10
0
5
10
15
Earthquake Magnitude
Frequency



A histogram with horizontal axis labeled Earthquake magnitude from 5 to 10 in intervals of 1 and vertical axis labeled Frequency from 0 to 15 in intervals of 5 contains vertical bars with heights as follows: 5 to 6, 3; 6 to 7, 9; 7 to 8, 13; 8 to 9, 9; 9 to 10, 3.
C.
5
6
7
8
9
10
0
5
10
15
Earthquake magnitude
Frequency



A histogram with horizontal axis labeled Earthquake magnitude from 5 to 10 in intervals of 1 and vertical axis labeled Frequency from 0 to 15 in intervals of 5 contains vertical bars with heights as follows: 5 to 6, 13; 6 to 7, 14; 7 to 8, 13; 8 to 9, 13; 9 to 10, 14.
D.
5
6
7
8
9
10
0
5
10
15
Earthquake Magnitude
Frequency



A histogram with horizontal axis labeled Earthquake magnitude from 5 to 10 in intervals of 1 and vertical axis labeled Frequency from 0 to 15 in intervals of 5 contains vertical bars with heights as follows: 5 to 6, 3; 6 to 7, 4; 7 to 8, 9; 8 to 9, 14; 9 to 10, 13.
Part 2
The histogram

has a longer left tail,
has a longer right tail,
appears roughly symmetric,
so the distribution of the data is

skewed to the right.
skewed to the left.
not skewed.

Answers

The histogram has a longer right tail since skewed right side

The distribution of data is positively skewed distribution

How to explain the histogram

A histogram with a longer right tail indicates that the data is skewed to the right, which means that the majority of the data points are on the left side of the graph, and there are fewer data points on the right side. This is also known as a positively skewed distribution.

In a positively skewed distribution, the mean is typically greater than the median, and the mode is less than the median. This is because the presence of outliers on the right side of the graph can pull the mean towards higher values, while the median remains closer to the bulk of the data.

The graph that represents this is D.

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4 sec x csc x = 8 csc x

Find all solutions in the interval of [0,2pi)
Enter results in radians.

Answers

As a result, x = pi/6 is the only answer in the range [0,2pi).

What is the radian of a pi?

When quantifying the angles of trigonometry or periodic functions, radians are frequently taken into account. Radians are always expressed in units of pi, with pi equivalent to either 3.14 or 22/7.

We can start by simplifying the left-hand side of the equation using the identity:

csc x = 1/sin x

4 sec x csc x = 4(1/cos x)(1/sin x) = 4/(cos x sin x)

Substituting this back into the original equation, we get:

4/(cos x sin x) = 8 csc x

Multiplying both sides by cos x sin x, we get:

4 = 8 sin x

Dividing both sides by 8, we get:

sin x = 1/2

This means that x is either pi/6 or 5pi/6, since these are the two angles in the interval [0,2pi) where sin x = 1/2.

However, we need to check if these solutions satisfy the original equation.

For x = pi/6:

4 sec x csc x = 4 sec(pi/6) csc(pi/6) = 4(2) (2/√3) = 16/√3

8 csc x = 8 csc(pi/6) = 8(2/√3) = 16/√3

So, x = pi/6 is a solution.

For x = 5pi/6:

4 sec x csc x = 4 sec(5pi/6) csc(5pi/6) = 4(-2) (-2/√3) = 16/√3

8 csc x = 8 csc(5pi/6) = 8(-2/√3) = -16/√3

So, x = 5pi/6 is not a solution.

Therefore, the only solution in the interval [0,2pi) is x = pi/6.

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Jim makes $8.50 an hour. Each week, 11% of his total pay is deducted for taxes. How many hours does Jim have to work if he wants his take-home pay to be at least $300 per week? Write and solve an inequality for this situation.

Answers

If Jim makes $8.50 an hour and 11% of his total pay is deducted for taxes, then…
$8.50x0.011=$0.935
8.50-0.94 (round up from 0.935 to 0.94 since we can’t and don’t pay a half of a cent)
=$7.56

If Jim wants to take home at least $300 a week (after taxes), then:
$300/$7.56
=39.68
=40 (rounded up, since we usually pay by hour)

Therefore, Jim would have to work 40 hours to take him at least $300 a week.

Andrea tiled a rectangle 2 1/2 units by 2 1/2 units. What is the area?

Answers

The rectangle has a surface area of 6 1/4 squares.

What is a rectangle and how big is it?

The territory a rectangle occupies inside its 4 corners or limits is referred to as its area. The dimensions of a rectangle determine its area. In essence, the area of a rectangle is equal to the sum of its length and breadth.

How come we measure area?

The amount of space within a form is measured by its area. In daily life, figuring out a shape's or surface's area can be helpful. For instance, you may require know how so much paints to buy to paint a board or the amount of grass to plant on a lawn.

To find the area,

[tex]Area=lenght*width[/tex]

[tex]Area=\frac{5}{2} *\frac{5}{2}[/tex]

[tex]Area=\frac{25}{4}[/tex]

[tex]Area=6\frac{1}{4} square unit[/tex]

Therefore, the area of the rectangle is [tex]Area=6\frac{1}{4} square unit[/tex]

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Write a proof for this statement

Answers

Proof for the given statement is given below.

What are Vertical Angles?

Vertical angles are the angles formed on two opposite sides of intersecting lines.

The measure of a pair of vertical angles are equal.

Given are two line segments intersected each other.

The line segments are KM and JN.

Consider ΔJKL and ΔLMN.

Given JL / NL = KL / ML

This means that two corresponding sides of ΔJKL and ΔLMN are proportional.

In a similar triangles, corresponding angles are equal.

So they are similar triangles.

∠JLK and ∠MLN are a pair of vertical angles.

So they are equal.

Corresponding angle of J in ΔJKL is angle N in ΔLMN.

So ∠J = ∠N

Or, ∠J ≅ ∠N

Hence it is proved.

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Ethan and David are brothers. If Ethan is 3 years older than David and the sum of their ages is 17, how old is David?

Answers

Answer: 7 years old

Step-by-step explanation: The two quickest ways to solve these types of problems are by guess and check, and systems of equations. I will show you how to solve this problem with systems of equations since it is a systematic method.

We can replace the ages of Ethan and David with variables. Ethan's age is x and David's is y. Ethan is 3 years older than David and this can be represented by: y+3=x since 3 will have to be added to David's age, y to get Ethan's age, x. A second equation we can make is x+y=17 since the sum of their two ages is 17. Now we solve the system by first isolating a variable and then plugging that into the second equation.

y+3=x         x is already isolated for us

x+y=17

(y+3)+y=17 We substitute x in the second equation for y+3

2y+3=17     Rearrange variables

2y=14

y=7             David's age, y, is 7.

Hope this helps!

The average American worker makes about 4x10^4 dollars yearly. The average professional basketball player makes about 6x10^6 dollars yearly. How many times greater is the average professional basketball player's salary than the average American worker's salary? {(WILL GIVE BRAINLIEST)}

Answers

Answer:150 times

Step-by-step explanation:

The average professional basketball player's salary is 6x10^6 dollars yearly, while the average American worker's salary is 4x10^4 dollars yearly.

To find how many times greater the average professional basketball player's salary is, we can divide the basketball player's salary by the worker's salary:

6x10^6 / 4x10^4 = (6/4)x10^(6-4) = 1.5x10^2 = 150

Therefore, the average professional basketball player's salary is 150 times greater than the average American worker's salary.

Determine if the three side lengths could form a triangle 3,7,9 acute,right, or obtuse

Answers

Answer:

The triangle is acute.

Step-by-step explanation:

To determine whether the side lengths of 3, 7, and 9 can form a triangle, we need to apply the triangle inequality theorem, which states that the sum of the lengths of any two sides of a triangle must be greater than the length of the third side.

Let's check if this condition is satisfied for the given side lengths:

3 + 7 = 10 > 9, so the sum of the two smaller sides is greater than the largest side.

7 + 9 = 16 > 3, so the sum of the two smaller sides is greater than the largest side.

3 + 9 = 12 > 7, so the sum of the two smaller sides is greater than the largest side.

Since all three inequalities are true, we can conclude that the given side lengths of 3, 7, and 9 can form a triangle.

To determine whether the triangle is acute, right, or obtuse, we can use the Pythagorean theorem, which states that in a right triangle, the square of the length of the hypotenuse (the longest side) is equal to the sum of the squares of the lengths of the other two sides.

Let's first determine which side is the longest. Since 9 is the largest side length, it must be the hypotenuse if the triangle is right-angled.

However, using the Pythagorean theorem, we can see that:

3^2 + 7^2 = 58 < 9^2, so the triangle is not right-angled.

Therefore, the triangle must be either acute or obtuse. To determine which one, we can use the law of cosines, which states that in any triangle:

c^2 = a^2 + b^2 - 2ab*cos(C)

where a, b, and c are the side lengths, and C is the angle opposite to side c.

Let's apply this formula to the triangle with side lengths 3, 7, and 9:

9^2 = 3^2 + 7^2 - 2(3)(7)*cos(C)

81 = 58 - 42*cos(C)

cos(C) = (58 - 81)/(-42) = 0.5476

C = cos^(-1)(0.5476) = 56.69 degrees

Therefore, the largest angle in the triangle is approximately 56.69 degrees. Since this angle is less than 90 degrees, we can conclude that the triangle is acute.

Answer:

obtuse angled triangle

Step-by-step explanation:

for the sides to form a triangle

the sum of any 2 sides must be greater than the third side.

3 + 7 = 10 > 9

3 + 9 = 12 > 7

7 + 9 = 16 > 3

then the 3 sides 3 , 7 , 9 will form a triangle

given 3 sides a , b , c with c the longest side

• if a² + b² = c² ⇒ right triangle

• if a² + b² > c² ⇒ acute angled triangle

• if a² + b² < c² ⇒ obtuse angled triangle

here a = 3 , b = 7 , c = 9

a² + b² = 3² + 7² = 9 + 49 = 58

c² = 9² = 81

since a² + b² < c²

then triangle is obtuse

PLEASE THESE QUESTIONS ARE KILLING ME AND I NEED HELP ASAP !!

Answers

The minimum score Chen can earn on the final test to get at least 80 percentage avg. on the tests is 41.

Define percentage?

The denominator of a percentage (also known as a ratio or fraction) is always 100. Sam, for instance, would have received 30 out of a possible 100 points if he had received 30% on his arithmetic test. In ratio form, it is expressed as 30:100 and in fraction form as 30/100.

As a percentage, "%" is read as "percent" or "percentage" in this context. This percent symbol can always be converted to a fraction or decimal equivalent by "dividing by 100".

Now in the given question,

Chen has total no of tests = 4

Total marks of the tests = 4 × 50 (Each test is worth 50 points)

= 200 marks.

So, to secure at least 80% average Chen has to score:

80% of 200

= 80/100 × 200

= 80 × 200/100

= 160

Now Chen has already secured 45, 38 and 36 points in 3 tests.

So, the points he has to secure in the last test =

160 - 45+ 38 + 36

= 41

Therefore, the minimum score Chen can earn on the final test to get at least 80% avg. on the tests is 41.

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if tan(A) = 3/4 then sin(b) equals

Answers

The sοlutiοn tο the given prοblem οf trigοnοmetry cοmes οut tο be sin(b) = 3/5 if tan(A) = 3/4.

What is trigοnοmetry?

Relatiοnships between cubic splines and mathematics When the disciplines οf astrοphysics were cοmbined, it is thοught that the subject was bοrn in the third century B.C. Precise mathematical techniques can be used tο sοlve a large number οf geοmetric equatiοns οr tο identify the οutcοmes οf calculatiοns invοlving them. The study οf the six fundamental trigοnοmetric functiοns is knοwn as trigοnοmetry. They gο by many different names and abbreviatiοns, such as sine, dispersiοn, angle, οblique, etc (csc).

Here,

cοs(b) Plus sin(b) = 1

Using the equatiοn, we can find the sοlutiοn fοr cοs(b) in terms οf sin(b):

cοs(2b) = (1 - sin(2b)) (b)

Inputting this intο the fοrmula fοr tan(b), we οbtain:

Tan is equal tο sin(b)/√(1 - sin2(b)).

When we square bοth sides and multiply by the remainder, we get:

(Tan(b)) / (1 + (Tan(b))) Equals sin2(b)

By simplifying and substituting tan(b) = sin(A)/cοs(A), we οbtain:

the fοrmula fοr sin2(b) is (sin(A))/((cοs(A))² + (sin(A))²)

Inputting the numbers we previοusly discοvered fοr sin(A) and cοs(A), we οbtain:

=> sin²(b) = (3/5)

=> sin² / ((4/5)

=> sin² + (3/5)²)

=> sin²(b) = 9/25 / (16/25 + 9/25)

=> sin²(b) = 9/25 / 25/25

=> sin²(b) = 9/25 sin(b) = +/- 3/5

Sin(b), which is pοsitive in the first regiοn, results in:

sin(b) = 3/5

As a result, sin(b) = 3/5 if tan(A) = 3/4.

Therefοre, The sοlutiοn tο the given prοblem οf trigοnοmetry cοmes οut tο be sin(b) = 3/5 if tan(A) = 3/4.

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If you wanted to take out a loan against the value of your home equity in order to help your sister through a rough patch while shes out of a job which type of home loan would make the most sense

Answers

If you are considering taking out a loan against the value of your home equity, there are several options to consider. One of the most common types of home loans for this purpose is a home equity loan or a home equity line of credit (HELOC).

What is  home equity?

The difference between the value of your home and the amount you owe on your mortgage is known as Home equity.

A home equity loan is a lump sum loan that allows you to borrow against the equity in your home. You receive the funds in one lump sum and then make fixed monthly payments over a set period of time, typically 5-15 years.

The interest rate on a home equity loan is generally fixed, which means that your monthly payments will remain the same throughout the life of the loan.

With a HELOC, you have access to a revolving line of credit, much like a credit card, and you only pay interest on the amount you borrow. The interest rate on a HELOC is typically variable, which means that your monthly payments may fluctuate over time.

Both home equity loans and HELOCs may make sense for helping your sister through a rough patch, as they can provide you with access to cash quickly and may offer lower interest rates than other types of loans. However, it's important to remember that both of these loans are secured by your home, which means that if you are unable to make your payments, you risk losing your home.

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