Question:Choose the correct scale factor:
A)2
B)1/2
C)3
D)1/3

Answer:

x=3

Step-by-step explanation:

3x+4=13

-4=-4

3x=9

÷3=÷3

x=3

Answer:

  C.  x² -4x +1

Step-by-step explanation:

The synthetic division is shown below. The quotient corresponds to answer choice C.

Answer:

1: 6

Step-by-step explanation:

Cross multiple 9 and 6

Cross multiple 8 and k, 8 and 6

8k + 6 = 54

-6 -6

8k= 48

divide by 8 on both sides

k = 6

Answer:

1.6875 gallons per hour

Step-by-step explanation:

Answer:

1.08 x 10³

Step-by-step explanation:

Calculating scientific notation for a positive integer is simple, as it always follows this notation: a x 10b.

Follow the steps below to see how 1,080 is written in scientific notation.

Step 1

To find a, take the number and move a decimal place to the right one position.

Original Number: 1,080

New Number: 1.080

Step 2

Now, to find b, count how many places to the right of the decimal.

New Number: 1 . 0 8 0

Decimal Count: 1 2 3

There are 3 places to the right of the decimal place.

Step 3

Building upon what we know above, we can now reconstruct the number into scientific notation.

Remember, the notation is: a x 10b

a = 1.08 (Please notice any zeroes on the end have been removed)

b = 3

Now the whole thing:

1.08 x 10³

Step 4

Check your work:

10³ = 1,000 x 1.08 = 1,080

Hope this helped

Answer:

f(4) = 5

Step-by-step explanation:

f(4)  means x=4

Using the function  4 >0 so using the lowest part

x+1  when x>0

4+1

5

f(4) = 5

Answer:

20. f(4) = 5

21. f(-6) = -6

22. f(0) = 0

23. f(-5) = -5

Step-by-step explanation:

The function is defined differently depending on the interval that x is in.

If x < -6, then f(x) = -2x^2 - 1.          Definition A.

If -6 <= x <= 0, then f(x) = x.            Definition B.

If x > 0, then f(x) = x + 1.                  Definition C.

For each value of the function you are asked to find in questions 20 through 23, the first thing to do is to see in which interval x is. Then you decide which function definition to use.

20. f(4)

4 is in the interval of Definition C.

f(x) = x + 1

f(4) = 4 + 1

f(4) = 5

21. f(-6)

-6 is in the interval of definition B.

f(x) = x

f(-6) = -6

22. f(0)

0 is in the interval of definition B.

f(x) = x

f(0) = 0

23. f(-5)

-5 is in the interval of definition B.

f(x) = x

f(-5) = -5

Answer:

12h

Step-by-step explanation:

Since we know that Jane rides her bike at the rate of 12 miles per hour,

12h

Answer:

Step-by-step explanation:

14% of 150 mg = 0.14* 150 = 21 mg

21 mg will be eliminated  from our body in an hour

150/21 = [tex]7\frac{3}{21}[/tex]

  = 7 hours { rounding to the nearest}

Answer:

Mary messed up on the second step. She should have also added 6 to the 24. If she had solved the equation the correct way her answer would have been m=10

Step-by-step explanation:

3m-6=24

Add 6 on both sides

3m=30

Divide by 3 on both sides

m=10

Answer:

x = 8.8

Step-by-step explanation:

4x(5x+6)=-5

20x + 24x = -5

44x = -5

44 divided by 5 equal 8.8

x = 8.8

pls mark brainlest ;)

Hope this helps you :)

Answer:

69 <-- quotient

 ---

Step-by-step explanation:

8)555

 48

 --

  75

  72

  --

   3 <-- remainder

Answer:

Find the answers in the explanation

Step-by-step explanation:

The given function is

f(x)=475-15x

A.) To find f^-1 and explain what it represents in this situacions, let f(x) = y. That is,

Y = 475 - 15x

Interchange y and x and make y the subject of formula

X = 475 - 15y

-15y = x - 475

Y = 475/15 - x/15

Y = (475 - x) / 15

Therefore,

f^-1(x) = (475 - x) / 15

If the function depreciates the smartphone, then, the inverse function will appreciate it.

When will the deprecated value of smart phone be less than $100.00

Substitute 100 for f(x) and find x

100 = 475 - 15x

-15x = 100 - 475

-15x = - 375

X = 375/15

X = 25

Therefore, the deprecated value of smart phone be less than $100.00 in the next 26 months.

what does x represent in f^-1(x) =30?

X represent the number of months for the smartphone appreciations

What is the value of x?

Substitute the inverse function for 30 and make x the subject of formula in the equation

f^-1(x) = (475 - x) / 15

30 = (475 - x) / 15

Cross multiply

450 = 475 - x

X = 475 - 450

X = 25 months

Graph f(x) and f^-1 (x) on the same coordinate

Hey there! I'm happy to help!

To find the x value of the midpoint, you add the x values and divide by 2.

-5+4=-1

-1/2=-1/2

For the y value, you add the y values and divide by 2.

5+6=11

11/2=5 1/2

So, the midpoint is (-1/2, 5 1/2).

Have a wonderful day! :D

Answer:

The measure of each angle of angle ABC  is equal to the corresponding angle of angle A' B' C'  when angle A' B' C' coincides with the other three triangles. The measures of the angles of the triangle are preserved as the figure rotates.

Step-by-step explanation:

Answer:

The measure of each angle of angle ABC  is equal to the corresponding angle of angle A' B' C'  when angle A' B' C' coincides with the other three triangles. The measures of the angles of the triangle are preserved as the figure rotates.

Step-by-step explanation:

Answer:

x>−3/7

Step-by-step explanation:

I hope this helps you

Answer:

I dont really know, but you dont have to listen but i think its D! its D!

Answer:

d: [tex]20(n-1)[/tex]

Step-by-step explanation:

[tex]2\left(n-7\right)-3\left(2-6n\right)[/tex]

Expand:

[tex]2n-2*7-3*2-(-3)*6n[/tex]

[tex]2n-14-6+18n[/tex]

[tex]2n+18n-14-6[/tex]

[tex]20n-20[/tex]

Factorise:

[tex]20(n-1)[/tex]

Answer:

k = -13/3

Step-by-step explanation:

Step 1: Flip the equation.

k + 7/3 = -2

Step 2: Subtract 7/3 from both sides.

k+ 7/3-7/3 = -2 - 7/3

k= -13/3

Hope this helps!

Answer:

18=18

Step-by-step explanation:

it dosent give x so just put them all together without x and its equal so(=)

Answer:

y= -6+2/3x

Step-by-step explanation:

2x-3y=18

Minus the 2x from both sides

-3y=18-2x

Then divide both sides by -1

-3y÷-1=18÷-1 -2x÷-1

Lastly divide both sides by 3

3y÷3= -18÷3+2x÷3

The equation 2x - 3y = 18 can be written as y = (2/3)x - 6 after arranging the terms and making subject y.

It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.

If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.

It is given that:

The equation is:

2x – 3y = 18

2x - 3y = 18

-3y = 18 - 2x

y = (2/3)x - 6

Thus, the equation 2x - 3y = 18 can be written as y = (2/3)x - 6 after arranging the terms and making the subject y.

Learn more about the linear equation here:

brainly.com/question/11897796

#SPJ2

Answer:

True

Step-by-step explanation:

The left column is for deductions

The right column is for reasons

Answer: 4

Step-by-step explanation: First convert the equation to y = mx + b form.

Start by subtract 4x from both sides to get -y = -4x + 3.

From here, divide both sides by -1 to get y = 4x - 3.

Now in y = mx + b form, the slope is the multiplier, or the m.

So here, 4 is the slope.

Answer:

(D) 4

Step-by-step explanation:

In order to find the slope you need to rearrange the equation so that y is alone on one side, so:

4x - y = 3

-y = -4x + 3

y = 4x - 3

The slope is the coefficient in front of x, so the slope is 4

Answer:

Your correct

Step-by-step explanation: x(-x) = -x

-5x-2x-1=-10

and the last one right too

Answer:

you were correct on 2/3

2. Negative

3. Negative

4. Negative

Step-by-step explanation:

...

Answer:

8w = 3.5gal

Step-by-step explanation:

1 gal = 16c

0.5gal = 8c

W = 7

8w = 3.5gal

Answer:

the mode is 78 out of all the numbers

Answer:

The answer is

Step-by-step explanation:

The midpoint M of two endpoints of a line segment can be found by using the formula

where

(x1 , y1) and (x2 , y2) are the points

From the question the points are

(-10,10) and (-9,6)

The midpoint is

We have the final answer as

Hope this helps you