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MAXImum [283]
3 years ago
7

Area of a Circle This activity will help you meet these educational goals: Mathematical Practices—You will make sense of problem

s and solve them, reason abstractly and quantitatively, construct viable arguments and analyze the reasoning of others, and look for and express regularity in repeated reasoning. Directions Read the instructions for this self-checked activity. Type in your response to each question, and check your answers. At the end of the activity, write a brief evaluation of your work. Activity The diameter of each of the three circular lights in a traffic signal is 7 inches. In this activity, you will find the total area of the three lights. Part A Each circular light has a diameter of 7 inches. What is the radius of each light?​
Mathematics
1 answer:
Annette [7]3 years ago
8 0
Can someone tell me the answer
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What is the volume of an oblique cylinder with a height of 6
Gnoma [55]

Answer:

471 cm^3

(none of the answers above are correct)

Step-by-step explanation:

Volume of cylinder = πr^2 × h

= 3.14 × 5^2 × 6

= 3.14 × 25 × 6

= 471 cm^3

4 0
2 years ago
Find the Area of the circle
Vlad1618 [11]

Answer: 530 cm^2

Step-by-step explanation:

A = 3.14 * r^2

A = 3.14 * 13 * 13

A = 3.14 * 169

A = 530 cm ^2

5 0
3 years ago
For f(x) = 5x + 1
drek231 [11]

Answer:

A. f(7) = 5(7) + 1\\\\f(7) = 36

B. f^{-1}(x) = \frac{x - 1}{5}

C. f^{-1}(7) =\frac{6}{5}

D. f(\frac{6}{5}) = 7

Step-by-step explanation:

A. To solve the first part of the problem we must replace x = 7 in the function f(x) = 5x + 1

So:

f(7) = 5(7) + 1\\\\f(7) = 36

B. In part B we must find the inverse function of f(x) = 5x + 1

To find the inverse function do y = f(x)

y = 5x +1

Now clear the variable x.

\frac{y - 1}{5} = x

Replace x with y.

y = \frac{x - 1}{5}

Finally

f^{-1}(x) = \frac{x - 1}{5}

C. Now we take the inverse function found above and replace x = 7

f^{-1}(7) = \frac{7 - 1}{5}\\\\f(7) = \frac{6}{5}

D. Now we substitute x = f(f^{-1}(7)) in the original function.

x = f( f^{-1}(7))\\\\f^{-1}(7) = \frac{6}{5}\\\\ x= f(\frac{6}{5} )\\\\f(\frac{6}{5}) = 5(\frac{6}{5}) + 1\\\\f(\frac{6}{5}) = 7

8 0
3 years ago
Read 2 more answers
Evaluate each expression x=-3,y=6,z=-4what is x+y+(-1)
Alex_Xolod [135]

substitute the numbers.

-3 + 6 - 1

= 2

8 0
2 years ago
A farmer wants to seed and fence a section of land. Fencing costs $27 per yard. Grass seed costs $2 per square foot. How much do
Lilit [14]

From.the calculated area and perimeter of the field, it will cost the farmer $475740 to fence and seed the pasture.

<h3>What is the area of the field?</h3>

The area of the field is calculated as follows:

Area of square = 450 ft × 450 ft = 202500 square feet

Area of triangle = (450 ft × 120 ft)/2 = 27000 square feet

Area of field = 229500 square feet

Cost of seeding the field = 229500 × $2 = $459000

Perimeter of the field = 450 + 450 + 450 + 255 + 255 = 1860 ft

1 ft = 1/3 yard

1860 ft = 1860 × 1/3 yards = 620 yards

Cost of fencing = 620 × $27 = $16740

Total cost of seeding and fencing = $475200

Therefore, it will cost the farmer $475740 to fence and seed the pasture.

Learn more about area and perimeter at: brainly.com/question/19819849

4 0
1 year ago
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