7849 rounded to the thousands is 8,000
Answer:
B. 2.2
Step-by-step explanation:
Volume of a rectangular prism = length*width*height
You can replace the width with the variable x for now, the height is given in the problem, and the length is 4 times the width so in this case it's 4x.
160 = 4x*x*8
160 = 32x^2
5 = x^2
The square root of five is about 2.2 so B is the correct answer
Answer:
Step-by-step explanation:
Expand then collect the like terms
Answer:
i is always positive
Step-by-step explanation:
if be multiply 3 by 3 and get 9, then you multiply -2i by 2i and get -4i squared
9-4i^2 is now easy to solve unless we do now know the value of i, but since i is squared, i is always positive
Answer:
y=5.44
Step-by-step explanation:
47+16y=134 subtract 47 from both sides
16y=87
y=5.44
