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Alborosie
3 years ago
9

The radius of a circle is 13 find its area un terms of pi​

Mathematics
1 answer:
lukranit [14]3 years ago
3 0

Answer:

530.66

Step-by-step explanation:

A = πr²

13 x 13 = 169

169 x 3.14 = 530.66

Let me know if this helps!

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X squared plus 5x plus 6 in a factor of binomials
Nadusha1986 [10]

Answer:

(x + 3)(x + 2)

Step-by-step explanation:

Given

x² + 5x + 6

Consider the factors of the constant term (+ 6) which sum to give the coefficient of the x- term (+ 5)

The factors are + 3 and + 2 , since

3 × 2 = 6 and 3 + 2 = 5 , thus

x² + 5x + 6 = (x + 3)(x + 2)

5 0
3 years ago
A spherical balloon has a 34-in. diameter when it is fully inflated. Half of the air is let out of the balloon. Assume that the
jeka57 [31]

Answer:

a. 20,579.52 cubic inches

b.10,289.76  cubic inches.

c. 13.49 inches

Step-by-step explanation:

Hi, to answer this question we have to calculate the volume of a sphere:

Volume of a sphere: 4/3 π r³

Since diameter (d) = 2 radius (r)

Replacing with the value given:

34 =2r

34/2=r

r= 17 in

Back with the volume formula:

V = 4/3 π r³

V =4/3 π (17)³

V = 20,579.52 cubic inches

The volume of the half-inflated balloon is equal to the volume of the sphere divided by 2.

20,579.52/2 = 10,289.76  cubic inches.

To find the radius of the half-inflated balloon we have to apply again the volume formula and substitute v=10,289.76

10,289.76= 4/3 π r³

Solving for r

10,289.76/ (4/3 π)= r³

2,456.5 = r³

∛2,456.5 = r

r = 13.49 inches

7 0
3 years ago
I picked true but it told me it was incorrect, I looked it up and it says true, so is this statement really true or not?
Gnoma [55]

Answer:

False

Step-by-step explanation:

What the attached image says that if two solids with equal heights and base areas are cut by any parallel plane to their bases then sections of equal area (volume) would be produced in them

5 0
3 years ago
Does anyone know how to unit rate?
Westkost [7]

Answer:17.91 calories per minute

Step-by-step explanation:

412 calories burned

23 minutes of riding

412/23 = 17.91 calories per minute

3 0
3 years ago
Read 2 more answers
50 points if u answer this easy problem.
Vlad [161]

Answer:

Slope=2

Step-by-step explanation:

Slope=rise/run

We can start at 2, 3 (you can start anywhere on the line)

Then go to 3, 5 (you can end anywhere on the line)

Rise=2

Run=1

2/1=2

Slope is 2. The uses up there were examples. It doesn't have to be the exact points.

8 0
2 years ago
Read 2 more answers
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