Answer:
B is your answer,
With the factors of ( 2 )( 1 ), the lay out of the equation makes only sense with answer B.
Assuming you want the range of
-4cos(2x)
the range of the cosine function is -1 to 1. When that is scaled by a factor of -4, it becomes 4 to -4.
The range of F(x) is [-4, 4] in interval notation.
_____
If you want the range of
F(x) = -4cos²(x)
that range will be -4×[0, 1] = [-4, 0].
Steps to solve:
k + 10 = 27
~Subtract 10 to both sides
k = 17
Best of Luck!
Answer:
The answer is D my friend 10n-t. Hope this Helps :)
Step-by-step explanation:
Answer:
(–1, 1)
(4, –2)
Step-by-step explanation:
Let
(x,y) ----> the coordinates of point C
Applying the Pythagoras Theorem

step 1
Find the possibles values of x

Simplify

Solve the quadratic equation

The values of x are
x=-1 and x=4
step 2
Find the possibles values of y

Simplify

Solve the quadratic equation

The values of y are
y=-2, y=1
therefore
The possibles coordinates of point C are
(-1,1),(4,-2)