The reference angle is the positive angle formed by the terminal side of the angle and x-axis:
7 π / 6 = 210° = 180° + 30°
Answer: The reference angle is 30°.
Answer:
Acute angles.
Step-by-step explanation:
Answer:G(-5)=21, G(-1)=5 G(0)=1 G(2)=-7 G(10)=-39
Step-by-step explanation:
Answer:
Option A, 16 quarts
Step-by-step explanation:
<u>16 quarts is about 64 cups</u>
16 gallons is about 256 cups
16 teaspoons is very small
<em>The most reasonable is Option A, 16 quarts</em>
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Answer: Option A, 16 quarts
For a geometric sequence, an = ar^(n - 1)
a2 = ar^(2 - 1) = ar = -12 . . . . . . . . (1)
a5 = ar^(5 - 1) = ar^4 = 768 . . . . . . (2)
(2)/(1) = ar^4/ar = 768/-12
r^3 = -64
r = ∛(-64) = -4
From (1), ar = -12
-4a = -12
a = -12/-4 = 3
Therefore, an = 3*(-4)^(n - 1)