Answer:

Step-by-step explanation:
Make both equations equal to each other and solve for the variable x:

Find two numbers that when you add them you get -3 and the product of both numbers be -4. These numbers are 1 and -4. Then:

Substitute these values into one the original equations and solve for y:

Therefore, you get that:

Answer: It’s a vector
Step-by-step explanation: AP EX approved
Answer:
I know u saw me before but the answer is B hope it helps! =)
Answer:
9.07 and 7.77 respectively.
Step-by-step explanation:
To determine the upper control limit, add 0.65 lb to 8.42 lb, obtaining 9.07 lb.
To determine the lower one, subtract 0.65 lb from 8.42 lb, obtaining 7.77 lb.