Mathematics High School

A stage in the shape of a semi circle had a diameter of 42 ft. What is area of the stage? Use 22/7 for π. PLZ I NEED FAST TEST

Answers

Answer 1

A semi circle is half a full circle. Find the area of the full circle and divide it by 2.

Area of a circle = pi x r ^2

R is half the diameter

Area of full circle:

Area = 22/7 x 21^2

Area = 1386 sq. Ft

Area of stage = 1386/2 = 693 square feet

Answer 2

Answer:

3.14 x 42 x 42 = 5538.96ft

If your wondering why used 3.14 instead of 22/7 is because they are exactly the same just one is a whole number and the other is a fraction. I suggest you use 3.14 because its easier than 22/7.

Step-by-step explanation:

:))

Related Questions

Please help will mark brainliest

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I think it’s A. If not, then B.

Ill give brainiest - please help ASAP with WORK FOR IT please and thank you!! :)

30 points

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Answer:

hope this helps .keep on learning

answer pls for point

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Answer:

x= 4 , y= 1

Step-by-step explanation:

confirm the answer was correct

Order these numbers from least to greatest. 8.009, 8.7, 8.09, 8.7082

​

Answers

8.009
8.09
8.7
8.7082
Good Luck!

Answer:

8.009 , 8.09 , 8.7 , 8.7082

Step-by-step explanation:

Convert all numbers to decimals.

8.009 = 8.009

8.7 = 8.7

8.09 = 8.09

8.7082 = 8.7082

Arrange the numbers in ascending order.

8.009 , 8.09 , 8.7 , 8.7082

−6, −3, 2, 9, 18, . . . nth term

Answers

Answer:

Your answer would be

X^2-7

Step-by-step explanation:

Hope it helps .

Good luck .

Find the circumference of the semi circle 7cm

Answers

Given:

A semicircle with radius 7 cm.

To find:

The circumference of the given semi circle.

Solution:

We know that,

Circumference of a semi circle = Half of circumference of the circle + Diameter

                                                    [tex]=\dfrac{1}{2}(2\pi r+d[/tex]

                                                    [tex]=\pi r+2r[/tex]

Putting [tex]\pi=\dfrac{22}{7},r=7[/tex], we get

Circumference of the semi circle [tex]=\dfrac{22}{7}(7)+2(7)[/tex]

                                                        [tex]=22+14[/tex]

                                                        [tex]=36[/tex]

Therefore, the circumference of the given semi circle 36 cm.

3+p=8 what the answer??

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Answer: 5

Step-by-step explanation:

Please help me I’ll mark brainliest!!!!

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Answer:

Step-by-step explanation:

anybody know the answer to this?

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It is x=-3 just use Photomath bro

Be sure to clearly label each part of your response as Part A, Part B, and Part C.

Part A: If the product of x and 3 is y, write an equation to represent the relationship between the two variables.

Part B: Explain your work in Part A.

Part C: Create a table of values to display five solutions to the equation. Write the solutions as ordered pairs.

Answers

Answer:

Part A: y = 3x

Part B: The relationship of y to x is y is 3 times as much as x.

Part C: (0,0), (1,3), (2,6), (3,9), (4,12)

Step-by-step explanation:

Part A: The product of x and 3 (3 times x) is (equals) y. So we can write this linear equation as y = 3x.

Part B: The linear equation is a representation of the relationship between y and x. Y is equivalent to three times x.

Part C: To create solutions to the linear equation, simply plug in a value of x to output a y.

x = 0 -> y = 3(0) = 0; (0,0)

x = 1 -> y = 3(1) = 3; (1,3)

x = 2 -> y = 3(2) = 6; (2,6)

x = 3 -> y = 3(3) = 9; (3,9)

x = 4 -> y = 3(4) = 12; (4, 12)

Cheers.

A data set is shown below. { 0 , 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 } Which of the following best represents a measure of center for the values in this data set?

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Answer:

51

Step-by-step explanation:

The price of a skateboard is reduced by 25%. The original price was $120. Find the new price.

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Answer:

New price = 90 dollars

Price is reduced 25% from 120 so,

120 - 30 = 90

Amount of discount = 30

Failing please please

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Answer:

A = 102m squared (Brainiest?)

Equation = b x h / 2

Step-by-step explanation:

A = (12 x 17) / 2

A = 204 / 2

A = 102m squared

Mrs. Monaco made 144 cookies. She decides to bring 105 of them to school to share with her students, and the rest she will keep at home to eat. What percentage of the cookies did she bring to school to share with students? Round your answer to the nearest tenth.

Show all your work.

Answers

Answer:

40 is ur answer

Step-by-step explanation:

144-105=39

39 written as a percentage is 39%

39% rounded to nearest tenth is 40

Answer:

dhchdhduc

Step-by-step explanation:

tell whether the angles are complementary or supplementary. Then find the value of x​

Answers

Answer:

12) complementary,   x=15

13) complementary, x = 35

x+ (x-20) = 90

x+x+20=90

2x=70

x=35

14) supplementary, x=31

2x+3x+25=180

5x=155

x=31

15) <1 = 130 degrees

 <2 = 50 degrees

<3 = 130 degrees

16) x=53

x+2x+21=180

3x=159

x=53

which of the following equations represents a line that passes through the points​

Answers

Answer:

C) I only

Step-by-step explanation:

( -1, -2) and (0,4)

Slope:

m=(y2-y1)/(x2-x1)

m=(4+2)/(0+1)

m=6/1

m=6

Slope-intercept:

y - y1 = m(x - x1)

y + 2 = 6(x + 1)

y + 2 = 6x + 6

y = 6x + 4

y - 16 = 6(x - 2)

y - 16 = 6x - 12

y = 6x + 4

what is the slope of the line that contains the points (13,2) and (3,-2)

Answers

Answer:

⅖

Step-by-step explanation:

please like my answer and brainliest me... hshshshshs

For the people that are trying to help me, is this good?

Answers

Answer:

369.03

Step-by-step explanation:

The figure is a pyramid with a rectangular base

The formula is A+1/2ps

A=130 (Area of the base)

p=46 (perimeter of the base)

s=15 (slant height)

The altitude of a plane is 1200 meters. From a point on the ground, the angle of elevation of an airplane is 25º. What is the distance from point P to the airplane, to the nearest tenth of a meter? Explain your answer.

Answers

Answer:

2839.4 meters

Step-by-step explanation:

Given that:

Altitude = 1200 m

Using trigonometry :

The distance from point P to the airplane :

Using trigonometric relation :

Sin θ = opposite / hypotenus

Sin θ = altitude / x

Sin θ = 1200 m / x

Sin 25 = 1200 / x

0.4226182 = 1200 / x

x = 1200 / 0.4226182

x = 2839.4423

Distance from P to airplane = 2839.4 meters

The price of BZG CO's stock is tracked over several days, as displayed in the table below. Based on the data given, what linear equation can be used to predict the price of this stock in the future? Round the variables to 3 decimal places.

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Answer:

Y= 1.165x18.703

And the equation from the previous problem to predict the price BZG stock on day 30 is y=1.165(30) + 18.703 -$53.65


Work out the area of this quarter circle of radius 8 cm.
Give your answer in terms of pie .

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Answer:

[tex] 16\pi \: {cm}^{2} [/tex]

Step-by-step explanation:

[tex]A = \frac{90 \degree}{360 \degree} \times \pi ({8})^{2} \\ \\ A = \frac{1}{4} \times \pi \times 64 \\ \\ A = \frac{1}{4} \times 64\pi \\ \\ A =16\pi \: {cm}^{2} [/tex]

PLEASE HELP!!!!!!!!!!!!!!!!!

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Answer:

It is the fourth graph the line that is short and goes off the page

Step-by-step explanation:

Describe the error in the work shown.

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In the third step, to get rid of the cubed root you have to have a cubed exponent as it shows with (y^3)^4. However, it takes the 4 out instead of the 3. You're supposed to take the 3 out, and the answer is supposed to be xy^4/4

A laptop carry bag cost $30. The total cost will include an 8% sales tax. Which expression can be used in calculating the total cost with tax?

A. 0.8(30)

B. 1.08 (30)

C. 0.08 (30)

D. 1.8 (30)

Answers

The correct answer to this is C, you’re welcome
The answer is C because you are calculating for a percentage

Someone please help me with this question I would really appreciate it!

Answers

Answer:

she is correct

Step-by-step explanation:

along with color she also has the type

like type:leather= color brown ,black ,blue

cloth= tan and gray

multiplication

type =2

leathers color =3

cloth color = 2

= 12

I NEED THIS ASAP!!
The average length of a female dolphin is about 171 inches (in). What is this length in feet (ft) and inches (in)?

Answers

Answer:

14.25ft

171 in

Step-by-step explanation:

Hello everybody please help me (this is 6th grade math)
​

Answers

Answer:

Look at the image.

Step-by-step explanation:

HELP HELP HELP ILL MARK YOU BRAINLIEST

Answers

The answer would be 128z^9.

This is because when you multiply exponents with a variable (z), you keep the base the same (8z and 16z), but you add the exponents together.

(x^10)^2/x4 simplify ​

Answers

Answer:

x^16

Step-by-step explanation:

=> x^20 / x^4

=> x ^ 20-4

=> x^16

Please mark my answer as the brainliest for further answers :)

Which statement is correct

Answers

Answer:

I think its a

Step-by-step explanation:

because 1/5 as a decimal is 0.2 and 0.3 is great then 0.2

I think the answer is a
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