the average monthly precipitation for dallas for oct, nov, and dec is 3.47 in. If 2.88 in. falls in oct and 3.13 in. falls in no
1 answer:
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Answer:
x = - 2, x = 9
Step-by-step explanation:
Given
f(x) =
The denominator of f(x) cannot be zero as this would make f(x) undefined.
Equating the denominator to zero and solving gives the values that x cannot be.
x² - 7x - 18 = 0
(x - 9)(x + 2) = 0
Equate each factor to zero and solve for x
x + 2 = 0 ⇒ x = - 2
x - 9 = 0 ⇒ x = 9
The excluded values are x = - 2, x = 9
Answer:
∠ Q ≈ 53.1°
Step-by-step explanation:
cos Q = =
=
, then
∠ Q = (
) ≈ 53.1° ( to the nearest tenth )