Step-by-step explanation:
x² = 50²+ 55² - 2 • 50 • 55 • cos61°
Answer:
40/42 = 20/21
Step-by-step explanation:
Answer:
f(-2) = -1
Step-by-step explanation:
One way of doing this is to substitute -2 for x in every place where x shows up:
f(x) = 4x + 3x^2 − 5 → f(-2) = 4(-2) + 3(-2)^2 − 5
→ f(-2) = -8 + 3(4) - 5, or f(-2) = 4 - 5, or f(-2) = -1
Answer:
The one one the left is 1/2 , the one on the right is 8/25
Step-by-step explanation:
