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Deffense [45]
3 years ago
12

The area of a circle is 706.9 square inches. Find the radius

Mathematics
1 answer:
antoniya [11.8K]3 years ago
4 0

Answer:

15 inches

Step-by-step explanation:

The area of a circle is pi r^2. We basically have to work backwards. I divided it fist by 3.14 which is the value of pi. I got 225.127, but I rounded it to 225. I found the square root of this which is 15. If we check the work. 15^2 is 225, and 225 times pi is 706.9.  

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There are 45 students in a class. The ratio of boys to girls is 2:3. How many boys are there in the class?
Lena [83]

Answer:

18 boys

Step-by-step explanation:

we add 2 and 3 because they are equal parts:

2+3=5

Then we divide 45 by 5 because we want to find what 1 part equals"

45/5=9

We now do 9*2 to get an answer of:

9*2=18

hope this makes sense!

7 0
3 years ago
Help, please! sorry I have so many of these
Mademuasel [1]
Median = 70.

If you arrange all the numbers in ascending order, 70 will be the middle number.
7 0
3 years ago
On a coordinate plane, point B(–6, 1) is translated to B prime(–3, –2). Indira uses these steps to find a rule to describe the t
Lunna [17]

Answer:

The rule of the translation is   (x,y) -----> (x+3,y-3)

The translation is 3 units at right and 3 units down

Step-by-step explanation:

we have that

The translation of point B to point B' is

B(-6,1) -----> B'(-3,-2)

so

(x,y) -----> (x+a,y+b)

B(-6,1) ----> (-6+a,1+b)

Find the value of a

-6+a=-3

solve for a

a=-3+6\\a=3

Find the value of b

1+b=-2

solve for b

b=-2-1\\b=-3

therefore

The rule of the translation is

(x,y) -----> (x+3,y-3)

That means ----> The translation is 3 units at right and 3 units down

3 0
3 years ago
Read 2 more answers
What is 5.84x10 to the power of 0 in standard form
Brums [2.3K]
Anything raised to the power of 0 is 1. So standard form = 5.84
7 0
3 years ago
Can someone please solve this one? You can just give the answer and no explanation, I just need to get this in real quick.
Inessa05 [86]

Answer:

Step-by-step explanation:

1. T

2. F

3. F

4. T

5. F

6. T

3 0
3 years ago
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