Answer:
(h*h)(10) is the same as h(10)*h(10). Let's find the value of h(10) first. To do this, replace every x with 10 like so
Step-by-step explanation:
h(x) = 6-x
h(10) = 6-10
h(10) = -4
So,
h(10)*h(10) = (-4)*(-4)
h(10)*h(10) = 16
The final answer is 16
Answer:
H >= 6.25
6.5 hours per week
Step-by-step explanation:
75-50=25
JT must complete 25 more hours of exercise in 4 weeks. 25/4=6.25. So JT has to exercise 6.5 hours each week.
>= (means greater than or equal to)
Answer: Yes, radicals can be rationals.
Step-by-step explanation:
Yes, a radical can be rational.
If a square root is a perfect square, you will obtain an integer, and by definition, the integer are rationals (they can be written as simple fractions).
Example:

If the radical has a root <em>n </em>and number inside of the root can be written as a power with exponent
, then you will obtain a radical.
Example:
![\sqrt[3]{64}=\sqrt[3]{4^{3}}=4=\frac{4}{1}](https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7B64%7D%3D%5Csqrt%5B3%5D%7B4%5E%7B3%7D%7D%3D4%3D%5Cfrac%7B4%7D%7B1%7D)
2x + (x + 5) = 30
3x + 5 = 30
3x = 30 - 5
3x = 25
x = 25/3