You need to put the 15 over 1 and multiply 6 by 3 to get 18, which would be added to 2 to get 20/3, which you flip in order to get 3/20. You multiply the 15 by the 3 and the 1 by the 20 to get 45/20. You then simplify to get 2 1/4
Answer: f(x) = x + 2; f(12) = 14
<u>Step-by-step explanation:</u>
The parent function of f(x) = x has been shifted up 2 units
⇒ f(x) = x + 2
f(12) = 12 + 2
= 14
Answer:
B
Step-by-step explanation:
y and x + 20 are corresponding angles and are congruent, then
y = x + 20 → (1)
2x - 10 and y are adjacent angles and supplementary, sum to 180°, so
2x - 10 + x + 20 = 180, that is
x + 10 = 180 ( subtract 10 from both sides )
x = 170 ( multiply both sides by 2 to clear the fraction )
5x = 340 ( divide both sides by 5 )
x = 68
Substitute x = 68 into (1)
y = (68) + 20 = 34 + 20 = 54° → B
Answer:
A.
Step-by-step explanation:
4π√5 - 2π√5 ÷ 3√5
=2π√5 ÷ 3√5
root 5 cancels out
=2π ÷ 3