Let f(x) = 2x − 6. solve f−1(x) when x = 2. select one: a. −5 b. 4 c. −2 d. 7
1 answer:
F(x) = 2x - 6
y = 2x - 6
2x - 6 = y |add 6 to both sides
2x = y + 6 |divide both sides by 2
x = 1/2y + 3
f^{-1}(x) = 1/2x + 3
f^{-1}(2) = 1/2 · 2 + 3 = 1 + 3 = 4
Answer: b. 4
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P = 21 + 2w
Solve for w
Subtract 21 from both sides.
P - 21 = 2w
Divide both sides by 2.
= w
The first option is correct.
Answer:
2/15
Step-by-step explanation:
4/5-2/3 = 12/15-10/15 = 2/15
So 2/15 is your answer
9514 1404 393
Answer:
C. 61.9°
Step-by-step explanation:
The sum of angles in a triangle is 180°, so the third angle is ...
180° -35.5° -82.6° = 61.9°
Hello,
Solution:
Follow PEMDAS
= 5 + (-5) + 39
= 5 - 5 + 39
= 0 + 39
= 39
Answer - 39