Which transformations are needed to change the parent sine function to the sine function below?

Answers

Answer 1

Answer: A parent sine function y=a (x - h) + k ca be defined as
a is the amplitude.
h is the horizontal shift or the phase shift(shift to the left or right)
k is the vertical shift(shift up or down)

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Question 7
X-9= -6
What is X

Answers

the answer to this question is x=3

Josie went to the local hairstylist to get her hair cut. It cost $34 for the haircut. Josie tipped the hairdresser 20%. What was the total amount Josie paid? Round to nearest cent.

Answers

Answer:

$40.80 is the answer

jean needs to graph the function below y= 7x^2 + 8x - 6 How many time should the graph of this function intersect at the x-axis?

Answers

when it intersects the x axis, the y value is 0
0=7x^2+8x-6
2nd degree, therefor there are 2 solutions and also 2 intersections

answe is 2 times

a boat takes 4 hours to go 20 miles upstream.It can go 32 miles downstream in same time.Find the rate of the current and the rate of the boat in still water.

Answers

Let

x---------> the rate of the boat in still water in mph

y--------> the rate of the current in mph

we know that

Upstream

$rate=(20)/(4) \n\n rate=5mph$

$x-y=5$ equation $1$

Downstream

$rate=(32)/(4) \n\n rate=8mph$

$x+y=8$ equation $2$

Adds equation $1$ and equation $2$

$x-y=5\n x+y=8\n -----\n 2x=13\n x=6.5mph$

Find the value of y

$x+y=8\n y=8-x\n y=8-6.5\n y=1.5 mph$

therefore

the answer is

the rate of the boat in still water is $6.5 mph$

the rate of the current is $1.5 mph$

Upstream: It goes about 5 mph b/c 20 miles/4 hours= 5 mphDownstream:It goes about 8 mph b/c 32 miles/ 4 hours=8 mphHope I helped! :-)

The following two right triangles are similar.If side PQ = 42, side LM = 28, and side QR = 24, what is the length of side MN?a. 16
b. 10
c. 13
d. 14

Answers

Answer:

a. 16

Step-by-step explanation:

Find the scale:

42 ÷ 28 = 1.5

Use this scale for QR to find MN:

24 ÷ 1.5 = 16

Solve the equation
12E − 4 = 0

Answers

This could get complicated. Please try to follow my steps carefully:

Begin by writing the equation to be solved: 12E - 4 = 0

Add 4 to each side of the equation: 12E = 4

Divide each side by 12: E = 4/12 = 1/3 .

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