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2 years ago

How do you find the area of a circle with just the radius?

Mathematics

2 answers:

zloy xaker [14]2 years ago

5 0

Answer:

Oh that's easy! You find out what the radius is.. then the diameter is another one of that number. Example say that the radius is 10 then the diameter is 20 or if the radius is 7 the diameter is 14

Step-by-step explanation:

WINSTONCH [101]2 years ago

5 0

Answer:

<h2>Use the formula A = π(r²) where r is the radius</h2>

Step-by-step explanation:

π = pi, and r is the radius. It's the only value you need to find the area of a circle. π is usually represented as 3.14, or you can use the π button on your calculator

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10y + 10 =130 solve for y

aniked [119]

Answer: y=12

Step-by-step explanation:

10y+10=130

-10 -10

10y=120

—- ——

10. 10

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3 years ago

Beach towels are on sale for $1.50 off the regular price. Ms. Ortiz buys 4 beach towels on sale for a total of $33.96. Write and

Nadya [2.5K]

Answer:

9.99

Step-by-step explanation:

(33.96/4)+1.5

3 0

2 years ago

One package of raspberries cost 3$. how many packages of raspberries an you buy for 18$

Sphinxa [80]

Answer:

6 packages.

Step-by-step explanation:

If they are $3 each, and you only have $18, divide 18 by 3, which gives you 6.

8 0

1 year ago

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What is the value of x?

Elanso [62]

Since all the angles are congruent, the sides must be congruent too.

So, just have one equation on one side equal to another.

5x= 3x+6

Subtract 3x from both sides.

2x=6

Divide 2 into both sides.

x=3.

We can check this by seeing if all the sides are the same.

5(3)= 15

6(3)-5= 15

3(3)+6= 15

I hope this helps!
~cupcake

7 0

3 years ago

Solve by factoring, help

zubka84 [21]

Answer:

$x = - 4 \\ x = - 7$

Step-by-step explanation:

$x {}^{2} + 28 = - 11x \\ x {}^{2} + 11x + 28 = 0 \\ x {}^{2} + 7x + 4x + 28 = 0 \\ x(x + 7) + 4(x + 7) = 0 \\ (x + 4)(x + 7) = 0 \\ \\ x = - 4 \: \: \: \: \: \: \\ \: x = - 7$

4 0

2 years ago

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