Karen traveled at a rate of 65 mph for 7 hours.
1 answer:
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Answer:
13 - 17
Step-by-step explanation:
Using the rule
×
= a
Each term in the second factor is multiplied by each term in the first factor, that is
2 (
- 9 ) + 1 (
- 9 )
Distribute both parenthesis
= (2 × 11) - 18 +
- 9
= 22 - 17 - 9
= 13 - 17
Answer:
Option C is correct.
Step-by-step explanation:
We need to find reference angle and signs of sinФ, cosФ and tanФ
We know that is equal to 150°
and 150° is in 2nd quadrant.
So, Ф is in 2nd quadrant.
And In 2nd quadrant sine is positive, while cos and tan are negative
The reference angle Ф' is found by: π - Ф
=> Ф = 5π/6
so, Reference angle Ф' = π - 5π/6
Ф' = 6π - 5π/6
Ф' = π/6
So, Option C Θ' = pi over 6; sine is positive, cosine and tangent are negative is correct.