I think that 10 is 20% of 50
<span>if at 7 it was 65 and at 9 it was 55, that means temperature is decreasing by 5 per hour</span>
The answer to this is A. 650. You find the surface area of the two cubes, then the rectangular prism, then you add them together.<span />
<span>"3 ≤ x ≤ 7 or x is between 3 and 7, inclusive"
The domain of a function is the range of values for which the function is defined. Since your function is a graph, look at the minimum and maximum values of X for that graph. The graph is a straight line connecting (3,2) to (7,12). So the legal values of X are every value between 3 and 7. And since the value 3 exactly is acceptable as well as the value 7 being acceptable, then the range is from 3 to 7 inclusive. Now look at the available answers and you'll see that
"3 ≤ x ≤ 7 or x is between 3 and 7, inclusive"
is one of the available choices and it's correct.</span>
Answer:
13
Step-by-step explanation:
(x + 3)^3/2 = 64
√(x + 3)^3 = 64
(x + 3)^3 = 64^2
(x + 3)^3 = (4^3)^2
(x + 3)^3 = (4^2)^3
Same exponent
So
x + 3 = 4^2
x + 3 = 16
x = 13
