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3 years ago

Help please! 15 points!

Mathematics

1 answer:

Ivan3 years ago

5 0

It’s 3!! I checked on a calculator :)

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Describe the transformation required to obtain the graph of the given function from the basic trigonometric graph.

mamaluj [8]

Answer:

Option c. Reflection across the x-axis and vertical stretch by a factor of 7

Step-by-step explanation:

If the graph of the function $y = cf(x)$ represents the transformations made to the graph of $y = f(x)$ then, by definition:

If $0$ then the graph is compressed vertically by a factor a.

If $|c| > 1$ then the graph is stretched vertically by a factor a.

If $c$ then the graph is reflected on the x axis.

In this problem we have the function $y = -7secx$ and our paretn function is $y = secx$

therefore it is true that

$c = -7\\\\|-7|> 1\\\\-7$ .

Therefore the graph of $y = secx$ is stretched vertically by a factor of 7 and is reflected on the x-axis

Finally the answer is Option c

6 0

3 years ago

If 6/9 is equal to 10/R, what is R?

sladkih [1.3K]

Answer:

r = 15

Step-by-step explanation:

I don't really have an explanation, I'm just good at quick math,

I'm sorry if you wanted an explanation, I would explain but I am really bad at explaining math.

5 0

2 years ago

Jason has 4 tiles. Each tile has a number printed on it. the numbers are 2,3,6 and 8. A decimal number is formed using the tiles

steposvetlana [31]

Where are the clues
I need them

7 0

2 years ago

Tan^2x+sec^2x=1 for all values of x. true or false?

amid [387]

This is not true.

$\tan^2x+\sec^2x=\dfrac{\sin^2x}{\cos^2x}+\dfrac1{\cos^2x}=\dfrac{1-\cos^2x+1}{\cos^2x}=2\sec^2x-1$

$2\sec^2x-1=1\implies\sec^2x=1\implies\sec x=\pm1\implies x=n\pi$

where is $n$ is any integer. So suppose we pick some value of $x$ other than these, say $x=\dfrac\pi4$ . Then

$\tan^2\dfrac\pi4+\sec^2\dfrac\pi4=1+2=3\neq1$

5 0

2 years ago

Read 2 more answers

Rayyan made a $3000 first payment of a car The total cost of a car was $7500 he made 36 equal monthly payments to pay the car in

hammer [34]

Answer:

$125/month

Step-by-step explanation:

equation we got:

7500 = 36x + 3000

subtract 3000 from both sides

4500 = 36x

divide both sides by 36 to get x by itself

125 = x

x = 125

 so rayyan paid $125 per month

5 0

2 years ago