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Zanzabum
2 years ago
7

What is the area of a circle with a radius of 10 feet? (Use 3.14 for ρ.)

Mathematics
1 answer:
bekas [8.4K]2 years ago
8 0

Answer:

The area of a circle = 314 sq. ft

Step-by-step explanation:

Given:

Radius = 10 ft

pi = 3.14

To Find:

The area of a circle = ?

Solution:

A = pi x r^2

A = 3.14 x (10)^2

A = 3.14 x 100

A = 314 sq. ft

Therefore,

The area of a circle = 314 sq. ft

PLEASE MARK ME AS BRAINLIEST!!!

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Find the area of the composite figure.
Minchanka [31]

Answer:

132 square feet

Step-by-step explanation:

The formula for the area of a triangle is 1/2 * b * h. B stands for base and h stands for height. 1/2 multiplied by the base, 10, is 5. We then multiply 5 by 12 which is 60. Let's look at the rectangle now. The area of a rectangle is length by width. The length is 12ft and the width is 6ft. 12 * 6 = 72. 72+60=132 square feet.

8 0
2 years ago
In a class, 42 students, there are 8 more boys than girls write and solve a system of 3 equations
zhenek [66]

Answer:

x = 17

Step-by-step explanation:

x + x + 8 = 42     because x = boys and x + 8 = girls

2x = 34      because 2x = 42 - 8

x = 17            



i hope this helps!  you don't need the 2x = 42 - 8 to be an equation      ;)

8 0
3 years ago
How many solutions does the equation x^2-9x=-8 have?
Elza [17]
X^2-9x=-8
x^2-9x+8=-8+8
x^2-9x+8=0
(x-8)(x-1)=0

x-8=0
x-8+8=0+8
x=8

x-1=0
x-1+1=0+1
x=1

There are 2 solutions, which are 1 and 8 
8 0
3 years ago
6.6÷2.2+(3.2+4)=<br> Use pemdas
maxonik [38]
3.2+4=7.2
6.6/2.2=3
3+7.2=10.2
10.2
8 0
3 years ago
Neeed Help ASAP Quick
Andrew [12]

Answer:

4; 7

Step-by-step explanation:

Small box = 25 and Large box = 50

small box = x and large box = x+3

25x+50(x+3)=450

25x+50x+150=450

75x=300

x=4

Large box = 4+3 = 7

Therefore, 4; 7

I hope this helped and have a good rest of your day!

3 0
2 years ago
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