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jeka57 [31]
4 years ago
11

What is the area of a circle whose radius is 4 ft?

Mathematics
2 answers:
serg [7]4 years ago
8 0
It is pi times radius squared. if radius is 4, 4 squared is 16, the answer would be 16pi ft^2
Dmitriy789 [7]4 years ago
6 0
Use this equation: A=3.14159r^2
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If you were to use the substitution method to solve the following system, choose the new equation after the expression equivalen
Alisiya [41]
The answer is <span>2(–4y + 13) – 3y = –29

Step 1: Express </span><span>x from the second equation
Step 2: Substitute x into the first equation:

The system of equations is:
</span><span>2x – 3y = –29 
x + 4y = 13

Step 1: 
</span>The second equation is:    x + 4y = 13
Rearrange it to get x:         x = - 4y + 13

Step 2:
The first equation is:          2x – 3y = –29 
The second equation is:    x = - 4y + 13
Substitute x from the second equation into the first one:
2(-4y + 13) - 3y = -29

Therefore, the second choice is correct.
5 0
4 years ago
What is the area of this figure?? PLEASE HELP
diamong [38]

Answer:

1410ft²

Step-by-step explanation:

20 * 12 * 2 + [62 * (15 + 12)] =

480 + (62 * 15) =

480 + 930 =

1410ft²

8 0
2 years ago
The comma after "however" should be removed
Nadya [2.5K]

Answer:

No it shouldent

Step-by-step explanation:

Because it needs a comma

Example...

Howether, jhon had 5

8 0
3 years ago
The measures of two complementary angles have a ratio of 3:2 what is the meusure of the larger angle
ozzi

Answer:

54

Step-by-step explanation:

The two angles add to 90 degrees since they are complementary

the ratio is 3:2

Multiply by x

3x:2x

Add them together and set equal to 90

3x+2x=90

5x=90

Divide each side by 5

5x/5 = 90/5

x = 18

The first angle is 3*18 = 54

The second angle is 2*18 = 36

4 0
3 years ago
Please help I cant figure it out
Softa [21]
This should help-
Triangle Total angle measures = 180
Right angle= 90
Line = 180

7 0
3 years ago
Read 2 more answers
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