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vazorg [7]
3 years ago
10

What is the surface area of a sphere with a radius of 12 units?

Mathematics
2 answers:
irina1246 [14]3 years ago
7 0

Answer: 576 (pie)units^2

Step-by-step explanation: APEX

Brrunno [24]3 years ago
6 0
Sphere Surface Area     =    <span> 4 • <span>π <span>• r²
</span></span></span>
Sphere Surface Area     = <span> <span> <span> 1,809.5573684677 </span>


</span> </span>
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PLEASE HELP I HAVE 10 MINUTES LEFT
Lena [83]

Answer:

Manufacturers has to produce 63 DVD/Blu-Ray players to achieve a minimum cost of $644

Step-by-step explanation:

The cost equation is given as:

C=0.04x^2-5x+800

This is a quadratic equation in general form, which is:

y=ax^2+bx+c

Matching, we can say:

a = 0.04

b = -5

c = 800

The minimum occurs at  x=-\frac{b}{2a}

and the minimum value would be to place that "x" value into the equation.

First, we find the minimum using values of a and b:

x=-\frac{b}{2a}=-\frac{-5}{2(0.04)}=\frac{5}{0.08}=62.5

Plugging this into original, we get:

C=0.04x^2-5x+800\\C=0.04(62.5)^2-5(62.5)+800\\C=643.75

Rounding off to nearest whole number, we can say:

Manufacturers has to produce 63 DVD/Blu-Ray players to achieve a minimum cost of $644

4 0
3 years ago
What is the simplified form of 3√7 - 5√7? A. -2√7 B. 2√7 C. -√14 D. 15√7
GarryVolchara [31]

https://www.symbolab.com/solver/simplify-calculator/simplify%203%5Csqrt%7B7%7D%20-%205%5Csqrt%7B7%7D

thats the answer kid

4 0
3 years ago
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Please help me stats
Korolek [52]
The answer is A.....
5 0
3 years ago
Solve to find x.<br> 7x - 12 = x - 6
Annette [7]

Hi,

7x - x = - 6 + 12

6x = 6

x = 6/6 = 1

3 0
3 years ago
A rotating water toy sprays a steady stream of water that is 12 feet long. If the water toy makes a full rotation, what is the a
leonid [27]
75.4 
12 would be considered the radius 
C = 2 pi R
so just insert that into the formula and the answer should be 
75.39 but if you round up it would be 75.4 
5 0
3 years ago
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