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erik [133]
3 years ago
13

The radius of a sphere measures 2 units. What is its surface area? S = 4nr2 S = 4n(2)2 Surface area = 16 square units​

Mathematics
1 answer:
garri49 [273]3 years ago
6 0

Answer:

50.24 sq. units

Step-by-step explanation:

S = 4πr² = 4×3.14× 2² = 3.14 × 16 = 50.24 sq. units

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HURRY PLZ Four friends are collecting money to buy dog food for an animal shelter. The food will cost $150, and each friend will
satela [25.4K]

Four Friends Collecting money to buy Dog Food:

Food Cost $150.00

Each Friend Collect the Same amount of Money:  $37.50 each Collected

Just Divide:

$150.00   Divide amongst the  4  friends:

150.00/4

150/4       =      75/2

Answer  ======>   Decimal:    $37.50    Each friend would need to collect to reach their goals.


Check:

$37.50    *     4  

$150.00

150/4   =====>   $37.50





Hope that helps!!!!!!!!!                                                 : )






Hope that helps!!!                                             : )

3 0
3 years ago
If an exterior angle of a regular polygon measures 40°, how many sides does the polygon have?
nataly862011 [7]
The sum of all exterior angles is always 360 degrees.
360/40=9 sides

the polygon has 9 sides.
8 0
3 years ago
The expression 3xy-(2x+4xy) is equivalent to
Goryan [66]
There are no answer options so I will just simplify the expression:
3xy-(2x+4xy)
3xy-2x-4xy
-2x-xy
3 0
3 years ago
What is the approximate area of the shaded sector in the circle shown below?
viva [34]

Answer:

4.71

Step-by-step explanation:

Area of shaded sector formula: r2(data)(pi)/360

Substitute the info into the formula

3^{2} (60)(pi)/360

9(60)=540

540/360(pi)=4.71

Hope this helps! :)

8 0
3 years ago
A line has an y-intercept of 4 and a x-intercept of 1. Use this information to write a function in slope intercept form (y = mx
Ad libitum [116K]

Answer:  D.  y = -4x + 4

Step-by-step explanation:

Notice that the y-intercept is when x is zero and the x intercept is when y is 0.

and to write in the equation in slope intercept form , you will need the slope and the intercept.

We will use the y and x intercepts to find the slope, by find the difference in their y coordinates and dividing it by the difference in their x coordinates.

y intercept: ( 0,4)  

x intercept: (1,0)

y coordinates difference:  4 - 0 = 4

x coordinates difference:  0 - 1 = - 1  

Slope:  4/-1 =  -4  

Since the slope is -4 and the the y intercept is 4 , the equation will be

 y = -4x + 4

7 0
3 years ago
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