What is the surface area of a sphere that has a radius of 5cm? use 3.14

Answers

Answer 1
Answer: The answer is 314cm².
The formula for the surface area of a sphere is: A=4πr².
A=4
×3.14×5²
First solve for exponents.
A=4
×3.14×25
Then multiply.
A=314cm
²
Answer 2
Answer: surface area of a sphere is roughly 4 times the area of a circle with same readius
aka
SA=4pir^2
pi=3.14 for this problem
r=5

SA=4*3.14*5^2
SA=4*3.14*25
SA=100*3.14
SA=314

answer is 314 cm^2

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If y varies directly with x and y=20 when x=5, find y when x=3.
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Consider the graph of the linear function h(x) = –6 + h(x) equals negative 6 plus StartFraction 2 Over 3 EndFraction x. x. Which quadrant will the graph not go through and why? Quadrant I, because the slope is negative and the y-intercept is positive Quadrant II, because the slope is positive and the y-intercept is negative Quadrant III, because the slope is negative and the y-intercept is positive Quadrant IV, because the slope is positive and the y-intercept is negative

1,574/18 Long Division Please And Thank You

Answers

                87.4
         ______
    18 | 15740
           144
         --------
             134
             126
         ----------    
                  80
                  72
              --------
                     8
this is gonna just keep repeating....so ur answer is 87.444.....or 87 4/9
Hello there.

1,574/18 Long Division Please And Thank You

 87.444

He table shows how the random number range is assigned to each event. If the following random numbers were assigned, predict the number of Chocolate Chip cookies purchased.

Random numbers: 3, 27, 43, 85, 83

Answers

Answer:

option 2nd is correct that is 2.

Step-by-step explanation:

We have been given the random number range assigned to each event  

And from the given table we can see that the assigned number range of chocolate chip  cookies  is 0-40

So, we will  consider numbers in this range 0-40 from the given random numbers which are 3,27,43,85,83.

So, 3 and 27 will come under the range 0-40

Therefore, only 2 chocolate chip cookies purchased

Therefore, option 2nd is correct that is 2.

Answer:

2

Step-by-step explanation:

GEOMETRY. PLEASE HELP ASAP! O.oFind the area. The figure is not drawn to scale.

A. 28.5 ft^2

B. 11 ft^2

C. 22 ft^2

Answers

Given:
height : 3 feet
base : 19 feet

Area of a triangle = (height * base) ÷ 2
A = (3 ft * 19 ft) ÷ 2
A = 57 ft² ÷ 2
A = 28.5 ft²

The area of the figure is 28.5 ft². Choice A.
A. 28.5 ft^2 Hope this help. Have a nice day, Need any more help with Geometry just message me. 

Which equation has the same soultions as X^2+6x-7=0

Answers

\n\n\huge\text{The answer is in the attachment !!!}
x^(2) +6x-7=0
Solve by formula : x_(1.2) = \frac{-b+ \sqrt{ x^(2-4ac) } }{2a}
a=1,b=6,c=-7

x_(1.2) = \frac{(-6)+ \sqrt{ 6^(2)-4(-7) } }{2}

x_(1.2)=  \frac{\sqrt{(-6)+ \sqrt{ 6^(2)+28 } } }{2}

x_(1.2) = ((-6)+ √(36+28 ) )/(2)

x_(1.2) = ((-6)+ √(64) )/(2)

x_(1.2) = ((-6)+8)/(2)

First solution:
x_(1) = ((-6)+8)/(2)

x_(1)= (\not 2)/(\not 2)

x_(1) =1
Second solution:
x_(2) = (-6-8)/(2)

x_(2) =-14:2

x_(2) =-7

The answer is: x_(1) =1x_(2) =-7

What is the volume of the square pyramid? Round to the nearest hundredth, if needed.5 in.
9 in.
9 in
0405 in 3
135 in. 3
675 in 3
75 in. 3

Answers

Answer:

The answer is 135 in 3.

Step-by-step explanation:

To find the volume of a square pyramid, first you need to find the base and height. In this case,

a = 9

h = 5

Now we use the formula (1/3 a^2 h) To find the volume.

I will use )( To show numbers being multiplied, example: 3)(4 = 12

=1/3)(9 cm^2)(5 cm

=1/3)(81 cm)( 5 cm

= 135 in. 3

Umm I think 0405 in 3?????

HELP..Maya spent 40% of her savings to pay for a bike that cost her $85 how much money was in her savings to begin with?

Answers

If 40% or .4 of her savings is $85 then we can write the equation .4s=$85 (s being the original amount in savings)
Divide both sides by .4 to get s= $212.50 as the original amount that she had
$85 is 40% of her savings.

So, 

40% of x is egual to $85
40/100x = 85
0,4x = 85
x = 85 / 0,4
x = 212,5

ANSWER = \$ 212,50