Answer:
Correct option is A.
Step-by-step explanation:
Given the following functions we have to choose the option which illustrates a change in amplitude.
Multiplying a sine or cosine function by a constant changes the graph of the parent function i.e results in change in the amplitude of function. Amplitude is the measure of distance from the sinusoidal axis to the maximum or the minimum.
Option A: y = 3cos4x
The parent function is f(x) = cos x.
The amplitude of function changes from 1 to 3.
Option B: y = 1+sinx
The parent function is f(x) = sin x
The amplitude remains same i.e 1
Option C: y = -2-cos(x - pi)
Here also remains same.
Option D: y = tan 2x
The tangent function does not have an amplitude because it has no maximum or minimum value.
Hence, correct option is A.
Answer:
132 degrees.
Step-by-step explanation:
Since the lines are parallel, the opposite angle is always the same, and since 48 degrees was the smaller bottom angle, the upper smaller angle is also 48 degrees. The line's total angle is 360 degrees, so 48 + 48 is 96, and 360 - 96 is 264, and then 264 divided by 2 is 132, so the larger angles on both intersections are 132 degrees.
Answer:
This relation is a function.
Step-by-step explanation:
This relation is a function because a there should be no repeating x-coordinates in the relation for it to be a function and that is exactly what happens in this relation.
The area of the rectangle is
units.
Step-by-step explanation:
Step 1:
The area of a rectangle is obtained by multiplying the length with the width of the rectangle.
Considering this a whole rectangle, the length of the rectangle is 5 units and the width is the sum of
,
, and -6.
So the length of the rectangle = 5 units and
the width of the rectangle
units.
The area of a rectangle = (length)(width).
Step 2:
By substituting the known values, we get
The area of the rectangle 
So the area of the rectangle is
units.
Answer:
that don't matter just the pre test if u get a good grade on a pre test you don't got ot do the lesson.
Step-by-step explanation: