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3 years ago

I DON'T UNDERSTAND HOW THE ANSWER IS 15% PLEASE EXPLAIN

Mathematics

1 answer:

sweet [91]3 years ago

6 0

Answer:

15%

Step-by-step explanation:

17/20 the 17 is the part, and the 20 is the whole

17/20 = x/100

cross multiply

17*100= 1,700 divide by 20

=85

The price reduced to 85% the original price, but to find out how much it changed, you have to subtract the part from the whole meaning

100% - 85% = 15%

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HELP! HELP! HELP! A function and its inverse are shown on the graph. Which answer pairs a possible domain restriction for f(x) a

Svetradugi [14.3K]

Answer:

B. f(x) domain: x ≥ 1; f⁻¹(x) range: y ≥ 1

Step-by-step explanation:

The <em>domain</em> of a function is identical to the <em>range</em> of its inverse. This is reflected in choices B and D. However, f(x) is undefined for x < 1, so it makes no sense to restrict its domain to x ≤ -2, as in choice D.

The appropriate response is ...

f(x) domain: x ≥ 1
f⁻¹(x) range: y ≥ 1

6 0

3 years ago

Read 2 more answers

Rippy spends 3 hours, 35 minutes, and 4 seconds driving on a road trip. How many seconds did she spend driving?

noname [10]

Answer:

12,904 sec

Step-by-step explanation:

Each hour is 3600 seconds

each minute is 60 seconds

3600 * 3 + 35 *60 + 4 =

5 0

3 years ago

What transformations are needed to change the parent cosine function to y=3cos(10(x-pi))?

LUCKY_DIMON [66]

Answer:

The graph of $y=cos(x)$ is:

*Stretched vertically by a factor of 3

*Compressed horizontally by a factor $\frac{1}{10}$ .

*Moves horizontally $\pi$ units to the rigth

The transformation is:

$y=3f(10(x-\pi))$

Step-by-step explanation:

If the function $y=cf(h(x+b))$ 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 c.

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

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

If $b> 0$ The graph moves horizontally b units to the left

If $b$ The graph moves horizontally b units to the rigth

If $0$ the graph is stretched horizontally by a factor $\frac{1}{h}$

If $h> 1$ the graph is compressed horizontally by a factor $\frac{1}{h}$

In this problem we have the function $y=3cos(10(x-pi))$ and our parent function is $y = cos(x)$

The transformation is:

$y=3f(10(x-\pi))$

Then $c =3>1$ and $b =-\pi < 0$ and $h=10 > 1$

Therefore the graph of $y=cos(x)$ is:

Stretched vertically by a factor of 3.

Also as $h=10$ the graph is compressed horizontally by a factor $\frac{1}{10}$ .

Also, as $b =-\pi < 0$ The graph moves horizontally $\pi$ units to the rigth

6 0

3 years ago

NEED ANSWER QUICK PLSSSS

Gelneren [198K]

Answer:

CCC

Step-by-step explanation:

7 0

3 years ago

jane is making a suit which requires 25/8 yards for the jacket and 1 3/4 yards for the skirt. what's the total amount of materia

FromTheMoon [43]

We add 25/8 yards and 1 3/4 yards together.

First we convert 1 3/4 to an imp. fraction 7/4.

In order to add fractions, they must have the same common denominator. So we multiply both sides of the fraction 7/4 by 2 to get 14/8. Now we can add 25/8 yards and 14/8 yards together to get 39/8 yards.

4 0

3 years ago