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svlad2 [7]
3 years ago
13

What is the area of a circle if it is 7ft

Mathematics
2 answers:
fgiga [73]3 years ago
7 0

Answer:

14 is the correct answer

cricket20 [7]3 years ago
4 0

Answer:

38.4845 if that is 7ft D

153.938 If its the radius

Step-by-step explanation:

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What is the area of a sector with a central angle of 255 and a radius of 18.4 m?
Igoryamba

Answer:

The answer is 753.01 m².

Step-by-step explanation:

Given that the formula of sector is θ/360×π×r² where r represents radius of circle. Then, you have to substitute the values into the formula :

area =  \frac{θ}{360}  \times \pi \times  {r}^{2}

Let θ = 255°

Let π = 3.14,

Let r = 18.4m,

area =  \frac{255}{360}  \times 3.14 \times  {18.4}^{2}

area = 753.01 {m}^{2}  \: (near.hundredth)

5 0
2 years ago
SIMPLIFY THE FOLLOWING EXPRESSION: given that s ≠ 0, and write your answer using only positive exponents. Thanks in advance!!!
Umnica [9.8K]

Answer:

4s¹²/(9t⁴)

Step-by-step explanation:

<u>Solving in steps:</u>

  • (3s⁻⁴t⁷s⁰)⁻²(-2s²t⁵)² =
  • 3⁻²s⁻⁴ˣ⁻²t⁷ˣ⁻²(-2)²s²ˣ²t⁵ˣ² =
  • 1/9×s⁸t⁻¹⁴(4)s⁴t¹⁰ =
  • 4/9 ×s⁸⁺⁴t⁻¹⁴⁺¹⁰ =
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3 0
3 years ago
Please help me with this
dem82 [27]

Answer:

I believe it is 49.425

Step-by-step explanation:

You just add all the numbers then divide it by how many numbers there are.

5 0
3 years ago
Read 2 more answers
Alexandra and Stephanie are sisters, and they're saving their money to buy a used car. Together they have more than $2,500, and
Vilka [71]

Answer:

Stephanie has more than $900

Step-by-step explanation:

Represent the unknowns:  a for Alexandra and s for Stephanie.

Then a + s > $2,500, and a = s + $700.

Substituting the latter into the former equation, we get:

(s + $700) + s > $2,500, or

2s > $1800

Then s > $900; Stephanie has more than $900.

7 0
2 years ago
The volume of a rectangular prism is 60 cubic units. What could the dimensions of the prism be?
laila [671]

Answer:1x20x3

Step-by-step explanation: 1 times 20 equals 20 and 20 times 3 equals 60 cubic units. Basically you are just multiplying 3 numbers that equal to 60.

5 0
2 years ago
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