Answer: 64 lbs
Step-by-step explanation:
I divided 56/140 and got 0.4. Then multiplied 0.4 by 160 and got 64. SOunds about right to me.
You can double check by multipling 0.4 by 140 and you get 56.
You have a lot of questions here, I can help you with a few of them.
When you simplify the polynomials, you put together all of the terms that have the same degree. That means the variables have the same exponents. The number of terms are the items separated by plus and minus signs.
Here are the answers for the first three:
1)
![8x^3+2x^2-3x+9 ](https://tex.z-dn.net/?f=8x%5E3%2B2x%5E2-3x%2B9%0A)
2)
![4w^2 + 14w + 17](https://tex.z-dn.net/?f=4w%5E2%20%2B%2014w%20%2B%2017)
3)
Perimeter formula
p = 2l + 2w
I reverse left-right side
2l + 2w = p
Move 2l to the right
2l + 2w = p
2w = p - 2l
Move 2 to the right
2w = p - 2l
w = (p - 2l)/2
Summary
p = 2l + 2w
2l + 2w = p
2w = p - 2l
w = (p-2l)/2
function composition is an operation that takes two functions f and g and produces a function h such that h(x) = g(f(x)). In this operation, the function g is applied to the result of applying the function f to x.
Answer:
200/25 = 8 meters
Step-by-step explanation:
Just take the distance of 200 m and divide it by 25 seconds.