2x+6 = 20
take 6 from both sides
2x = 14
divide by 2 on both sides
x = 7
Answer:
the answer is A
Step-by-step explanation:
because the graph is skewed to the left
Answer:
D
Step-by-step explanation:
The function
has value F(2) when x = 2 is substituted.

Answer:
see explanation
Step-by-step explanation:
Using the trigonometric identity
sin²x + cos²x = 1
Consider the left side
2cos²A - 1 ← replace 1 by sin²A + cos²A
= 2cos²A - ( sin²A + cos²A)
= 2cos²A - sin²A - cos²A
= cos²A - sin²A = right side ⇒ verified
Answer:
-7
Step-by-step explanation:
x+3y
Let x =2 and y = -3
2 +3(-3)
2 -9
-7