Mathematics College

Hurricane Irma knocked a tree down and destroyed a 45 degree section of your
circular fence that has a radius of 22 feet. If you want to replace the fence, how
long would you need the replacement section to be?h

Answers

Answer 1
The correct answer is 17.27 feet

Related Questions

Tickets for the theater are $5 for the balcony and $10 for the floor level. The total money
collected is $350. There are 55 tickets sold all together. *
How many balcony and how many floor level tickets were sold?
O 5 balcony / 10 floor
o 50 balcony / 5 floor
O 20 balcony / 30 floor
40 balcony / 15 floor

Answers

Answer:

40 Balcony/15 floor

Step-by-step explanation:

A and C are out instantly cause the amount of tickets sold doesnt equal 55 and B is out cause 50x5=250 and 5x10=50 which totals to 300 not 350

PLEASE HELP!!! THANK YOU!!!
You have $1000 to invest in an account and need to have $2000 in one year. What interest rate would you need to have in order to have this if the amount is compounded weekly? Round your answer to the nearest percent.
A. 4%
B. 2%
C. 3%
D. 1%

Answers

Answer:

A. 4%

Step-by-step explanation:

remember that there are 52 weeks in a year, so multiply 1000 by each answer, then multiply what you get by 52 to see if it is either below 2000 or just above 2000, and you'll see how i got 4%.

Answer:

3 or 2

Step-by-step explanation: I don't know, but I am gonna say that is the interest rate for the invest for saving up $2000

(Please correct me if I am wrong)

9 - 3 ÷ 1/3 + 1 = ? HELP ME

Answers

Answer:

1

Step-by-step explanation:

9 - 3  ÷ 1/3 + 1

first do division

3 ÷ 1/3 = 9

9 - 9 + 1 = 1

1) Is a t-Distribution Appropriate?
A sample with size n=75 has x¯=18.92, and s=10.1. The dotplot for this sample is given below.
Indicate whether or not it is appropriate to use the t-distribution.
Yes / No
If it is appropriate, give the degrees of freedom for the t-distribution and give the estimated standard error. If it is not appropriate, enter -1 in both of the answer fields below.
Enter the exact answer for the degrees of freedom and round your answer for the standard error to two decimal places.
df=
standard error =
2) Is a t-Distribution Appropriate?
A sample with size n=10 has x¯=508.5, and s=21.5. The dotplot for this sample is given below.
Indicate whether or not it is appropriate to use the t-distribution.
Yes / No

Answers

Answer:

1) Yes

2) No

Step-by-step explanation:

In the first test  t distribution is  appropriate to use because  in the dot plot the  16 data points can be seen other the the data points clustered round the mean.

Here degrees of freedom = n-1= 74

S. E= s/√n

S.E= 10.1/ √74= 1.17

For t - distribution it is assumed that the sample is approximately normal which is  visible in the dot plot in the first test.

In the second case z test should be applied.

Z test is used when the population standard deviation is not known .

In the second test  t distribution is   not appropriate to use because  in the dot plot only 2 data points can be seen other the the data points clustered round the mean.

For t - distribution it is assumed that the sample is approximately normal which is not visible in the dot plot.

After 9 years in an account with a 3.9% annual interest rate compounded continuously, an investment is worth a total of $17,757.16. What is the value of the principal investment? Around the answer to the nearest penny.

Answers

The value of the principal investment would be = $12,500.75

What is a principal investment?

A principal investment is defined as the capital amount of money that is being deposited into an account with the purpose of receiving interest for a particular period of time.

The years of investment (t) = 9 years

The annual interest rate (r) = 3.9% = 3.9/100= 0.039

The total worth of the investment (A) = $17,757.16

Then, solve the equation for P

P = A / ert

P = 17,757.16 / e(0.039*9)

P = $12,500.75

Therefore, the principal amount that is needed which can be compounded continuously to get the total amount given = $12,500.75

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What is the measure of each exterior angle for a regular polygon with 4 sides?
A. 90°
B. 60°
C. 30°
D. 45°

What is the answer

Answers

A 90

In a regular shape all of the sides an angles are the same
360/4=90

Answer:

90

Step-by-step explanation:

A regular quadrilateral is a square.

The sum of the exterior angles of a polygon is always

360 degrees

Therefore a quadrilateral has four exterior angles making the individual exterior angles

360 over 4=90 degrees

Hope this helps plz like and brainly :D

much would be appreciated <3

Find the distance between the two points.
✓ [?]
(-1,-2)
(3,-1)
Enter the number that
goes beneath the
radical symbol.

Answers

Answer:

d = √17, meaning that the number that goes beneath the radical symbol is 17.

Step-by-step explanation:

Refresh if you are unable to see below.

[tex]\text{Use the distance formula.}\\d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\\\text{Substitute the points.}\\d=\sqrt{(3-(-1))^2+((-1)-(-2))^2}\\\text{Subtract.}\\d=\sqrt{(4)^2+(1)^2}\\\text{Evaluate the powers of 2.}\\d=\sqrt{16+1}\\\text{Add.}\\d=\sqrt{17}[/tex]

To calculate the cost of painting his silo, a farmer must find its height. The farmer uses a cardboard square to line up the top and bottom of the silo as shown in the diagram below. Approximate the height of the silo, rounded to the nearest foot.

Answers

Answer:

Height of the silo = 18 feet.

Step-by-step explanation:

From the figure attached BC is the length of the silo and the height of the farmer is 5 ft.

Farmer is standing at 8 ft distance from the silo.

From triangle AEC,

tan(∠CAE) = CE/AE=5/8

m(∠CAE) = tan-1 (5/8)

= 32°

m∠BAE = 90° - 32° = 58°

From the triangle ABE,

tan58° = BE/AE

BE = 8tan58°

BE = 12.8 ft

Total height of the silo = BE + EC

= 12.8 + 5

= 17.8

≈ 18 ft          

Therefore, the total height of the silo is 18 ft.

please help me!
Please explain it​

Answers

Answer:

1,416 cm²

Step-by-step explanation:

There are various lines dividing this figure into shapes, such as rectangles and triangles; this makes it easier to find the area.

To find the area of a triangle, multiply the base and the height, then multiply the product by 1/2.To find the area of a rectangle, multiply the width by the length.

First, find the area of the triangles.

In this figure, there are two triangles with heights of 12 and bases of 18.

[tex]12 * 18 = 216[/tex]

Then, multiply the product by 1/2.

[tex]216 * 1/2 = 108[/tex]

There are two triangles, so multiply, the product, 108, by 2.

[tex]108*2 = 216[/tex]

The area of both combined triangles is 216 cm; the area of a single triangle is 108 cm.

Secondly, find the area of the rectangles.

There are two rectangles with widths of 25 and lengths of 15.

[tex]25*15 = 375[/tex]

There are two rectangles, so multiply the product, 375, by 2.

[tex]375*2 = 750[/tex]

The area of both rectangles combined is 750 cm; the area of a single rectangle is 375 cm.

Lastly, we find the area of the rectangle in the middle.

This rectangle has a length of 18 and a width of 25.

18[tex]18*25 = 450[/tex]

The area of this rectangle is 450 cm.

Lastly, add the areas of all the shapes.

[tex]108 + 108 + 375 + 375 + 450 = 1,416.[/tex]

Therefore, the area of this figure is 1,416 cm².

You are given the expression 128/124 to simplify.
PART A
Which equation shows the correct property of exponents
to use?
am
an = am+n
am
an = am-a
am
an = am-n
am
an = an-m

Answers

B.
For the laws of exponents, one of the laws are a^m/a^n = a^m-n

A recipe for 8 pancakes needs the following:
1 1/4 cups of milk
1 1/2 cups of flour
1 egg

Maria has these ingredients.

1 quart of milk
8 cups of flour
12 eggs

How many more cups of milk does Maria need to make 40 pancakes in total?

Answers

Answer:

2.25 cups

Step-by-step explanation:

There are 5 eights in 40.

1.25 × 5 = 6.25

1.5 × 5 = 7.5

1 × 5 = 5

1 quart = 4 cups

6.25 cups - 4 cups = 2.25 cups

can someone help me with this PLEASE ITS KILLING ME!!!!

Answers

Volume of triangular prism is 45
Volume of rectangular prism is 112
45+112=157
Answer is 157

Evaluate this problem

Answers

Answer:

78

Step-by-step explanation:

a + 8b = 6 + 8 x 9 = 6 + 72 = 78

Answer: 78

Step-by-step explanation:

value of a=6

value of b=9

a+8b= 6+8*9

as the 8 will be multiplied by 9

6+8*9= 6+72

6+72 = 78

4.4) Find the least number by which 768 must be multiplied so as to make it a perfect square​

Answers

Answer:

3

Step-by-step explanation:

768 can be broken down to:

2×2×2×2×2×2×2×2×3

The part made up of twos is already a perfect square. The 3 needs a partner for it to be a perfect square also.

768 × 3 is 2304.

Sqrt2304 is 48.

Multiply 768 by 3 to make it a perfect square.

Solution

Refer To The Given Image

Can y’all pls help me solve this!!

Answers

Answer:
scale factor = 1.5
X = 7.5
Y = 4
Z = 8


Explanation
1. You can find the scale factor by dividing
9/6, which is 1.5. I divided 9 and 6 because they are congruent.

2. You can find x by using the proportion 9/6 = x/5, or 3/2 = x/5 which lets you work with smaller numbers. I’ll use the second proportion. Cross multiplying would give you 2x =15. To get the variable by itself divide both sides by 2, which leaves you with x = 7.5.

3. Use the proportion 3/2 = 6/y to solve for y. Cross multiplying would give you 12 = 3y. Divide both sides by 3 to get the variable by itself leaving you y = 4.

4. Use the proportion 3/2 = 12/z to solve for z. Cross multiplying would give you 24 = 3z. Divide both sides by 3 to get the variable by itself leaving z = 8.

Which expression is equivalent to (ab6)4?

a4b24
ab24
a5b10
ab28

Answers

Answer:

a^4b^24

Step-by-step explanation:

We know, (xy)^n = x^ny^n. So,

(ab^6)^4 = a^4b^(6×4)

= a^4b^24

Brocolli cost $3.36 a pound at the market. If Marisa
bought 2.5 pounds, what was the cost?

Answers

Answer:

Step-by-step explanation:

8.4

Answer:

$8.4

Step-by-step explanation:

[tex]3.36*2.5[/tex]

100 points Pls help me with the red ones

Answers

Answers:
For 36 people with peanuts = 9 cups
For 4 people with peanuts = 1 cup
For 6 people with peanuts = 1.5 cups
For 4 people with M & MS = 8/12 cups or 0.67 cups
For 6 people with M & MS = 1 cup
For 36 people with raisins = 1.5 cups
For 4 people with raisins = 2/12 cups or 0.17 cups
For 6 people with raisins = 0.25 cups
For 36 people with candy corn = 3.9 cups
For 4 people with candy corn = 0.43 cups
For 6 people with candy corn = 0.65 cups

Step-by-step explanation:
1. Set up a proportion to find how many cups it takes to feed 36 people peanuts given that it takes 3 cups to feed 12 people. This means that the proportion would be 3/12 = x/36. Cross multiply. This would give you 12x = 108. Divide 12 on both sides. Now, the equation is solved since you found out x = 9 cups.

2. Set up a proportion to find how many cups it takes to feed 4 people peanuts given that it takes 3 cups to feed 12 people. This means that the proportion would be 3/12 = x/4. Cross multiply. This would give you 12x = 12. Divide 12 on both sides. Now, the equation is solved since you found out x = 1 cup.

3. Set up a proportion to find how many cups it takes to feed 6 people peanuts given that it takes 3 cups to feed 12 people. This means that the proportion would be 3/12 = x/6. Cross multiply. This would give you 12x = 18. Divide 12 on both sides. Now, the equation is solved since you found out x = 1.5 cups.

4. Set up a proportion to find how many cups it takes to feed 4 people M & Ms given that it takes 2 cups to feed 12 people. This means that the proportion would be 2/12 = x/4. Cross multiply. This would give you 12x = 8. Divide 12 on both sides. Now, the equation is solved since you found out x = 0.67 cups.

5. Set up a proportion to find how many cups it takes to feed 6 people M & Ms given that it takes 2 cups to feed 12 people. This means that the proportion would be 2/12 = x/6. Cross multiply. This would give you 12x = 12. Divide 12 on both sides. Now, the equation is solved since you found out x = 1 cup.

5. Set up a proportion to find how many cups it takes to feed 36 people raisings given that it takes 0.5 cups to feed 12 people. This means that the proportion would be 0.5/12 = x/36. Cross multiply. This would give you 12x = 46.8. Divide 12 on both sides. Now, the equation is solved since you found out x = 3.9 cups.

6. Set up a proportion to find how many cups it takes to feed 4 people raisins given that it takes 0.5 cups to feed 12 people. This means that the proportion would be 0.5/12 = x/4. Cross multiply. This would give you 12x = 2. Divide 12 on both sides. Now, the equation is solved since you found out x = 0.17 cups.

7. Set up a proportion to find how many cups it takes to feed 6 people raisins given that it takes 0.5 cups to feed 12 people. This means that the proportion would be 0.5/12 = x/6. Cross multiply. This would give you 12x = 3. Divide 12 on both sides. Now, the equation is solved since you found out x = 0.25 cups.

8. Set up a proportion to find how many cups it takes to feed 36 people candy corn given that it takes 1 1/3 cups to feed 12 people. Simplify 1 1/3 to 1.3. This means that the proportion would be 1.3/12 = x/36. Cross multiply. This would give you 12x = 46.8. Divide 12 on both sides. Now, the equation is solved since you found out x = 3.9 cups.

9. Set up a proportion to find how many cups it takes to feed 4 people candy corn given that it takes 1 1/3 cups to feed 12 people. Simplify 1 1/3 to 1.3. This means that the proportion would be 1.3/12 = x/4. Cross multiply. This would give you 12x = 5.2. Divide 12 on both sides. Now, the equation is solved since you found out x = 0.43 cups.

10. Set up a proportion to find how many cups it takes to feed 6 people candy corn given that it takes 1 1/3 cups to feed 12 people. Simplify 1 1/3 to 1.3. This means that the proportion would be 1.3/12 = x/6. Cross multiply. This would give you 12x = 7.8. Divide 12 on both sides. Now, the equation is solved since you found out x = 0.65 cups.


Can someone help me out

Answers

Answer:

1. 29. Solve for the variable and graph the solution on a number line: –2x < –10 30. Solve for the variable and graph the solution on a number line: 9 + c > –2 31. Solve for the variable and graph the solution

2.  v – 4 ≥ 3 (6 + 2v

3. The last term, "the constant", is -5 Step-1 : Multiply the coefficient of the first term by the constant 4 • -5 = -20 Step-2 : Find two factors of -20 whose sum equals the coefficient of the middle term, which is -8

4.The first term is, 4p 2 its coefficient is 4 . The middle term is, -8p its coefficient is -8 . The last term, "the constant", is -5 Step-1 : Multiply the coefficient of the first term by the constant 4 • -5 = -20

Step-by-step explanation:

the rest is up to you, and u better say thanks and give me brainliest this took ages to explain

4/9 dividend by 2/3 =

Please help!!!will give brainlest

Answers

Answer:

2/3

Step-by-step explanation:

4/9 divided by 2/3 = 4/9 times 3/2

= 2/3

3)
A SAS
C) SSS
B) AAS
D) ASA

Answers

Answer:

D) ASA

Step-by-step explanation:

2x+3y=9. SOLVE FOR X

Answers

The answer is y = -2/3x + 3

Answer:

Step-by-step explanation:

Let's solve for x.

2x+3y=9

Step 1: Add -3y to both sides.

2x+3y+−3y=9+−3y

2x=−3y+9

Step 2: Divide both sides by 2.

2x/ 2 = −3y+9/ 2

x= −3/ 2 y+ 9/ 2

Answer:

x= −3/ 2 y+ 9/ 2

What's the equation and solution?​

Answers

Using the Algebraic tile method we get x=2 solution for equation model

What is Algebraic Tile method?

The algebra tile method is a method of solving equations by using visual models, such as tiles with different values on them, to represent the unknowns and constants in the equation. It is often used to help students understand the process of solving equations and to see how the operations of addition and subtraction correspond to the process of combining or separating algebraic expressions.

In the question, we have 3 kinds of tile

X tilesunit positive tilesunit negative tiles

Equation will be :

⇒ 3x - 1 - 1 = 1 + 1 + 1 + 1

⇒ 3x - 2 = 4

⇒ 3x = 6

⇒ x = 2

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How to find an equation for a line through two given points?​

Answers

Answer:

The equation of the line is: [tex]y = 0.6x + 0.6[/tex]

Step-by-step explanation:

Equation of a line:

The equation of a line has the following format:

[tex]y = mx + b[/tex]

In which m is the slope and b is the y-intercept.

Two points:

We have these following two points in this exercise:

x = -6, y = -3, so (-6,-3)

x = 4, y = 3, so (4,3)

Finding the slope:

Given two points, the slope is given by the change in y divided by the change in x.

Change in y: 3 - (-3) = 3 + 3 = 6

Change in x: 4 - (-6) = 4 + 6 = 10

So

[tex]m = \frac{6}{10} = 0.6[/tex]

Then

[tex]y = 0.6x + b[/tex]

Finding b:

We replace one of the points in the equation to find b. I will use (4,3).

[tex]y = 0.6x + b[/tex]

[tex]3 = 0.6*4 + b[/tex]

[tex]2.4 + b = 3[/tex]

[tex]b = 0.6[/tex]

The equation of the line is: [tex]y = 0.6x + 0.6[/tex]

I have a question for someone out there I'm 10 and need some help what is 1/10+10/100​

Answers

Answer:

0.2

Step-by-step explanation:

1/10 = 0.1

10/100 = 0.1

0.1+0.1 = 0.2

Gemma has 3 rose bushes, each with the same number or roses. She picks 4 of the roses. There are 20 roses left on the rose bushes. How many roses were on each rose bush?

Answers

There were 8 roses on each bushes

How to calculate the number of roses on each bush?

Gemma has 3 rose bushes

Each bush has the same number of roses

She picks 4 of the roses

After picking the roses, there are 20 left in the bushes

Therefore the number of rose on each bush can be calculated as follows

20 + 4

= 24

24/3

= 8

Hence there are 8 roses in each bush

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I NEED HELP PLS HELP ME ASAP!!! I'LL GIVE YOU 100 POINTS!

Answers

Answer:

189 sq mm

Step-by-step explanation:

area = (21×18)/2 = 189 sq mm

It’s 189. Half of 18 is 9 and 9 x 21 = 189.

Which negative angle is equivalent to 275°?
O A. -75°
OB. -65°
O C. -95°
OD. -85

Answers

Answer:

-85º

Step-by-step explanation:

275 - 360 = -85

James is 425% heavier than his baby brother. Which of the following is equal to 425%

A) 425

B) 40 1/2

C) 4 1/4

D) 17/20

Answers

Equal 4.1/4 or 4.25

2. Construct Arguments Explain why -7 has a
greater absolute value than the absolute value
of 6.
5.-9
7.1-5
9. --
11.-1

Answers

Answer:

See below

Step-by-step explanation:

Absolute value is the positive distance from 0, so |-7| = 7 because -7 is 7 from 0, whereas 6 is 6 away from 0. Because 7>6, then -7 has a greater absolute value than 6

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