Answer:

Step-by-step explanation:
To find x, we first have to solve the equation given in the question:




Therefore, x = 9.
Hope this helped!
Answer:
1. 60z, 36
2. 96a, 88
Step-by-step explanation:
1.
First, find the like terms for z. (60z)
Second, find the like terms for 20, 4, and 12. (36)
2.
Combine the 88a and 8a (96a)
Then combine 8 plus 80 (88)
9514 1404 393
Answer:
D
Step-by-step explanation:
If the actual value is above the value estimated from the tangent to the curve, then the curve must have a positive second derivative: it curves upward.
Only curve D in the second attachment has upward curvature.