Answer:
x = −1
Step-by-step explanation:
Answer:
5 hours
Step-by-step explanation:
189-32=157
157/33 is about 4.76
4.76 rounded is 5 so the job took 5 hours
Answer:
m ≤ -15
Step-by-step explanation:
You can convert m into positive by multiplying -1 on both sides of the equation. This would also result to a -15.
Note that when an unknown variable changes its sign, the symbol becomes the opposite version of itself.
So,
-m ≥ 15
-m(-1) ≥ 15(-1)
m ≤ -15
Answer:
I think it's D
Step-by-step explanation:
6400 = 2*2*2*2*2*2*2*2*5*5 = 2^8 * 5^2
Square root of 2^8 = 2^4 and square root of 5^2 = 5
So the answer is 2^4 * 5
= 16 * 5
= 80
