10 hours was the full time she painted
Answer:
3) 10
4) 12
hope that helps buddy
Step-by-step explanation:
Answer:
1. 
2 a) 
b) 0
3. x = 10
Step-by-step explanation:
1.

2. a)
![2 [(\frac{-1}{4}) -12 (-1)^2] - 5[24 +2 (-12)]^2\\2[(\frac{-1}{4}) -12] - 5[24 -24]^2\\2 * [(\frac{-1}{4}) -12] -0\\\frac{-49}{2}](https://tex.z-dn.net/?f=2%20%5B%28%5Cfrac%7B-1%7D%7B4%7D%29%20-12%20%28-1%29%5E2%5D%20-%205%5B24%20%2B2%20%28-12%29%5D%5E2%5C%5C2%5B%28%5Cfrac%7B-1%7D%7B4%7D%29%20-12%5D%20-%205%5B24%20-24%5D%5E2%5C%5C2%20%2A%20%5B%28%5Cfrac%7B-1%7D%7B4%7D%29%20-12%5D%20%20-0%5C%5C%5Cfrac%7B-49%7D%7B2%7D)
b)

3.

Answer:
No, yes, no, yes
Step-by-step explanation:
Lines are only perpendicular if their gradients multiply to -1.
Answer:
zeros : -3/2 , multiplicity = 1
1 , multiplicity = 2
Step-by-step explanation:

To find zeros we set each factor =0 and solve for x
2x+3 =0
subtract 3 on both sides
2x= -3
divide by 2 on both sides
x= -3/2
The exponent of (2x+3) is 1 so multiplicity =1
Now we set (x-1)^2 =0
take square root on both sides
x-1 =0
add 1 on both sides
x=1
For (x-1)^2 the exponent is 2
So multiplicity = 2