The function f is given by
f(x) = x² – 2x
Which statement is true about the graph of f ?

Let x = John's age now

half of what johns age was 4 years ago: (1/2)(x-4)

is equal to one third of what it will be in 5 years time: (1/3)(x+5)

(1/2)(x-4) = (1/3)(x+5)

3(x-4) = 2(x+5)

3x - 12 = 2x + 10

Answer:

Year 3 and year 4 and the percentage is 8%

Step-by-step explanation:

Because it grown by 8

21

Step-by-step explanation:

=4x+5

=4*4+5

=16+5

=21

The value of function f(x) = 4x + 5 when x = 4 is 21 the answer is 21.

It is defined as a special type of relationship, and they have a predefined domain and range according to the function every value in the domain is related to exactly one value in the range.

We have a function:

f(x) =  4x + 5

Plug x = 4

f(4) = 4(4) + 5

f(4) = 16 + 5

f(4) = 21

Thus, the value of function f(x) = 4x + 5 when x = 4 is 21 the answer is 21.

Learn more about the function here:

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Answer: C) 4

The four signs are

<  which is a "less than" sign

> which is a "greater than" sign

[tex]\le[/tex] which is a "less than or equal to" sign

[tex]\ge[/tex] which is a "greater than or equal to" sign

Answer:

C) four

Step-by-step explanation:

to mark an inequality you have

less than (<),

greater than (>)

less than or equal (≤)

greater than or equal (≥)

and the not equal symbol (≠) but I assume your teacher didn't count this one for this question so just go with four :D

Answer:

the first one is -7x-6

the second one is -x/4-x/2

Step-by-step explanation:

Answer:

5. (-2x+5) - (6x+4) + (x-7) = - 7x - 6

6. - 3x/4 - 5/6

Step-by-step explanation:

Answer:

first one looks correct

9514 1404 393

Answer:

  x = 20

Step-by-step explanation:

The sum of the given angle expressions is 90°, the measure of the right angle:

  x + (3x +10) = 90

  4x = 80 . . . . . . . . . subtract 10

  x = 20 . . . . . . . . . . divide by 4

Answer:

x = 20

Step-by-step explanation:

Key skills needed: Complementary Angles, Equations

1) We are given this diagram and we want to find out x.

The 2 angles (One with the measure "x degrees" and the other with the measure of "3x+10") are complementary. This means that both their measures add up to equal the measure of a right, or 90 degrees.

2) This means we can make the equation --> [tex]x + 3x + 10 = 90[/tex]

To solve:

Combine like terms (3x + x = 4x) --> [tex]4x + 10 = 90[/tex]

To get "x" by itself, subtract 10 from both sides (90 - 10 = 80)

This means it would be --> [tex]4x = 80[/tex]

Divide by 4 from both sides (80 divided by 4 is 20) and get x = 20

Therefore 20 is your answer.

Hope you understood and have a nice day!! :D

Answer:

About 4.06, so your answer is 4 meters.

Answer:

406.4

Step-by-step explanation:

.  160 x 2.54 = 406.4 meters in 160 inches.

.  To check you can do division.

.  406.4 divided by 2.54 = 160 inches.

Hope this help!

Have a great day!

Answer:

8 tablespoons

Step-by-step explanation:

your ratio is 5:2 so for every 5 we will need 2. so 5 times what is 20. well 4 so now we need to multiply 2 by 4 to get 8 and your ratio becomes 20:8.

Sorry, I had done this wrong but I can't delete it. Look at  

sophiamilcheva's answer they did it correctly.

Answer:

x - 7 , is the answer

Step-by-step explanation:

Step-by-step explanation:

[tex]\tt{(3x+5)+(2x-9)-(4x+3) }[/tex] ⠀

[tex]\tt{3x+5+2x-9-4x-3 }[/tex] ⠀

[tex]\tt{5x-4x+5-12 }[/tex] ⠀

[tex]\tt{x-7 }[/tex] ⠀

Answer:

160 dollars

Step-by-step explanation:

20/100=32/x

let x= original price

20x =32x100

x=32x100/20

x=160 dollars

Answer:

$160

Step-by-step explain nation:

I hope this helps since you helped me, I  will help you.

Answer:

9,738.54 ft^3

Step-by-step explanation:

Answer:

9738.54 is the correct answer

Step-by-step explanation:

Answer:

Itis 11

Step-by-step explanation:

0.22 times 50=11

Answer:

{-5,-4,2,4}

Step-by-step explanation:

the domain is which x-values are included so use each of the x-values for each pair. Make sure if there are reapeats that you only write them once.

Answer:

1 1/4 ft

Step-by-step explanation:

First lets convert the fractions to decimals so it will be easier to divide. We need to divide to know how many leftover pieces of wood are there. 11.25 (11 1/4) divide by 2.5 (2 1/2) is 4 with the reminder of 1.25. So there are 4 (2 1/2 ft) wood pieces and 1 1/4 ft leftover piece of wood.

Answer:

Step-by-step explanation:

Answer:

b=1/2+7/4

b= 9/4

Step-by-step explanation:

yup......

Answer: b= 9/4

Step-by-step explanation: Multiply the numbers  B-1 * 7/4 = 1/2

                                                                                      B- 7/4 = 1/2

then add 7/4 to both sides of the equation and simplify and your solution is B=9/4

Answer:

-20

Step-by-step explanation:

First, you just have to take off the negative sign:

[tex]5 \times 4[/tex]

Then, multiply:

[tex]5 \times 4 = 20[/tex]

Lastly, put the negative sign back on the 20:

[tex]-20[/tex]

That's your answer!

Answer:

Step-by-step explanation:

1) 24+P=56

You then would subtract 24 from the left and move it to the 56 side of the equation.

2)P=56-24

You then take 56-24=32.

3) P=32

Answer:

$303.24

Step-by-step explanation:

399.00x24%=95.76

399.00÷95.76=303.24

Answer:

Function A has a rate of change of 5 and Function B has a rate of change of 4.5. Thus, Function A has a higher rate of change

Step-by-step explanation:

Answer:

Mira

Step-by-step explanation:

Rhona runs a measly 6 mph, nd Mira runs about 1.3. You gotta divide 8 by 6.

OR,

u can make common denominators. Make Rhona's 1 hour 6 hours, then multiply 6 by 6. Therefore, in 6 hours, Rhona runs 36 miles.

Answer:

87 cent?......................

Step-by-step explanation:

^^

Answer: 87 cents

Step-by-step explanation:

Since 100 pennies equal 1 dollar you would just simply subtract the 13 cent from the candy bar from 100

-14x+11

I'm not sure what the little asterisk * is for, so if I interpreted the question wrong just leave a comment :)

Answer:

40.

Step-by-step explanation:

Answer:

It would be 12 hours for the plane to go from a city to another/the other city

Step-by-step explanation:

(Distance=speed x time, Speed =distance ÷ time and Time =distance ÷ speed)

If you would apply the formula for time then

7,200m ÷ 600m/h = 12 hours

The plane flying at 600 miles per hour can cover a distance of 7200 miles in 12 hours.

A unitary method is a mathematical way of obtaining the value of a single unit and then deriving any no. of given units by multiplying it with the single unit.

Given, The distance between 2 cities is 7,200 miles and a plane can fly 600 miles per hour.

∴ The time required to cover the distance of 7200 miles is,

= (7200/600) h.

= 72/6 h.

= 12 h.

learn more about the unitary method here :

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Answer:

y = 4 [tex](2)^{x}[/tex]

Step-by-step explanation:

For an exponential function in standard form

y = a [tex](b)^{x}[/tex]

To find the values of a and b, use ordered pairs from the table

Using (0, 4 ), then

4 = a[tex]b^{0}[/tex] ( [tex]b^{0}[/tex] = 1 ), so

a = 4

y = 4[tex]b^{x}[/tex]

Using (1, 8 ), then

8 = 4[tex]b^{1}[/tex] = 4b ( divide both sides by 4 )

2 = b

Thus

y = 4 [tex](2)^{x}[/tex] ← exponential function

This proplem is wrong there is a variable and no answer

Answer:

18.70 and it would be per hour

Step-by-step explanation: