If tan0=-3/4 and 0 is in quadrant IV, cos20= (33/25, -17/25, 32/25, 7/25, 24/25?) and tan20= (24/7, -24/7, 7/25, -7/25, 13/7, -1
Oksana_A [137]
Answer:
- cos(2θ) = 7/25
- tan(2θ) = -24/7
Step-by-step explanation:
Sometimes, it is easiest to let a calculator do the work. (See below)
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The magnitude of the tangent is less than 1, so the reference angle will be less than 45°. Then double the angle will be less than 90°, so will remain in the 4th quadrant, where the cosine is positive and the tangent is negative.
You can also use the identities ...
cos(2θ) = (1 -tan(θ)²)/(1 +tan(θ)²)
cos(2θ) = (1 -(-3/4)²)/(1 +(-3/4)²) = ((16-9)/16)/((16+9)/16)
cos(2θ) = 7/25
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tan(2θ) = 2tan(θ)/(1 -tan(θ)²) = 2(-3/4)/((16-9/16) = (-6/4)(16/7)
tan(2θ) = -24/7
height = tan(11) x 210
height = 40.81 yards
rounded to nearest tenth = 40.8 yards
Izzy because her word rate is 98, which is more than 95 (the minimum).
Answer:
Step-by-step explanation:
Exponential functions have a horizontal asymptote. The equation of the horizontal asymptote is
y
=
0
.
Horizontal Asymptote:
y
=
0
Answer:
A- b: the y value when y changes; the point where a line crosses the v-axis
B- m: What happens to y when x is one; the ratio of the y change to the x change
C- k: The y value when x is zero b x increases by one
Step-by-step explanation:
If this is about slope intercept form as i think it is
C sounds a little bonkers in this case though because when y is zero then x increases by one
