We know the cofunction identity

.
Thus, the tangent of 90° minus <span>θ also equals
5.</span>
Answer:
its d
Step-by-step explanation:
trust me
Answer: The answer is y= -3 sin(2x) which is C
Step-by-step explanation:
Because I got it right
Answer:
D is correct
Step-by-step explanation:
A is incorrect because the lesser than is .001 higher
B is wrong since is .18 higher
C is wrong because its not equalone is .9 higher
Answer:
(x - 3) inches
Step-by-step explanation:
the ratio of -15 (of the area term) and +5 (of the length term) suggests a term for the width ending in -3. and we need an x in there to get x² for the area.
so, immediate assumption is (x-3) for the width.
let's check
(x+5)(x-3) = x² + 5x - 3x - 15 = x² + 2x - 15
correct.