ANSWER
The company must produce and sell more than 700 radios to have a profit.
EXPLANATION
The revenue function is

and the cost function is

The company will break even when total revenue is equal to the total cost.
This implies that,

We group similar terms to get,

This simplifies to,

Divide both sides by 8 to get,


The company breaks even by producing and selling 700 radios.
The company must produce and sell more than 700 radios to have a profit.
Answer: 5/2 and 25/4
Step-by-step explanation:
6x5=30
6x2=12
...
say these were perfect squares,
12x12= 144
30x30= 900
900/144 = 25/5
Answer:
Step-by-step explanation:
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1)
8² + 15² = 17²
64 + 225 = 289
This is true, so the triangle is a right triangle.
2)
4² + 12² = 13²
16 + 144 = 169
This is false, so the triangle is not a right triangle.
3)
20² + 21² = 27²
400 + 441 = 729
This is false, so the triangle is not a right triangle.
4)
28² + 45² = 53²
784 + 2,025 = 2,809
This is true, so the triangle is a right triangle.
Answer:
72
Step-by-step explanation:
The formula for surface area is SA = 2lw + 2wh + 2lh
W = width
L= length
H = height
A = 2(wl + hl + hw)
2·(6·3+2·3+2·6)
Simplify that down to get the answer 72