For f(x) = 4x + 1 and g(x) = x2-5 find (f - g)(x).
A. - x² + 4x - 4
B. - x² + 4× + 6
C. 4 x² - 19
D. x² - 4x - 6 ​

Answers

Answer 1
Answer: B


equation: (4x + 1) - (x^2 - 5)
distribute the negative: (4x + 1) - x^2 + 5
combine like terms: -x^2 + 4x + 6

Related Questions

Factor: x^2 - 5x - 24
• (X-5)(x-3)
• (x+8)(x-3)
•(x+3)(x-8)
• not factorable

Answers

Use Socratic by Google

Vocabulary How do you know if an equation represents a proportional relationship?
Use the drop-down menu to show your answer.

If an equation can be written in the form
Choose...
, then it shows a proportional relationship.

Answers

Answer:

Y = kx

I did the test and got it right, so this is it.

You are skiing down a mountain with a vertical height of 1200 feet. The distance that you ski as you go from the top down to the base of the mountain is 2900 feet. Find the angle of elevation from the base to the top of the mountain.

Answers

Answer:

24.44°

Step-by-step explanation:

The set up will give a right angled triangle.

Given

The length of the hill (hypotenuse) = 2900feet

Vertical height (opposite) = 1200feet(That side is opposite the angle of elevation)

According to SOH;

sin theta = opp/hyp

Sin theta = 1200/2900

Sin theta = 12/29

Sin theta= 0.4138

theta= arcsin(0.4138)

theta = 24.44°

Hence the angle of elevation from the base to the top of the mountain is 24.44°

this is the third one. to the person that is helping me, thank you so much.

Answers

Answer:

B is the answer.

First you do 38.25 divided by 3 and you get 12.75, And option B is 12.75

PLEASE HELP I HAVE A TEST!!A function predicts the number of household online-
devices in the average United States household. Which
domain would be the most appropriate set to use for
this function
Integers
Whole numbers
Rational Numbers
Irrational Number

Answers

Answer:

whole numbers probably

Nathan has a $5 gift card to download Pokemon games. The function m =
-0.5d + 5 represents the amount of money m that remains on the card
after a certain number of games, d, are downloaded. Find the zero and
explain what it means.*

Nathan can download 9 games and have some money left on the card

Nathan can download 10 games and have $0 left on the card

Nathan can download 15 games and have some money left on the card

Nathan can download 20 games and have $0 left on the card

Answers

Answer:

B. Nathan can download 10 games and have $0 left on the card

Step-by-step explanation:

Function given

m = -0,5d + 5

Each game costs $0.5 so 10 games cost 10*0.5 = $5

m = -0.5*10 + 5m = -5 + 5m = 0

Therefore when 10 games downloaded, no money is left on the card.

Correct choice is: B

Question 8
The ratio of soccer balls to baseballs is 12 to 15. If there are 4 soccer balls, how many baseballs are there?
Your answer

Answers

Answer:

5

Step-by-step explanation:

please help find the area (not cm) i’ll give brainliest

Answers

Answer

4.5 centimeters2

Step-by-step explanation:

Answer: 4.5

Step-by-step explanation: To find area, you must multiply the length and width. 3 x 1.5 = 4.5  Hope this helps!

SOMEONE HELP IM BEING TIMED I WILL GIVE BRAINLIEST 6TH GRADE MATH

Answers

Answer:

its a

Step-by-step explanation:

Letter A, did the math

Choose the correct answer.
1. What is the equation of a line that passes
through the origin and intersects (4, 6)?
A. y = -3/2x
B. y = -2/3x
C. y = 2/3x
D. y = 3/2x

Answers

Answer:

The equation of the line is y = [tex]\frac{3}{2}[/tex] x ⇒ D

Step-by-step explanation:

The form of the linear equation is y = m x + b, where

m is the slope of the lineb is the y-intercept (value y at x = 0)

The rule of the slope is m = [tex]\frac{y2-y1}{x2-x1}[/tex] , where

(x1, y1) and (x2, y2) are two points on the line

∵ The line passes through the origin (0, 0) and point (4, 6)

∴ x1 = 0 and y1 = 0

∴ x2 = 4 and y2 = 6

→ Substitute them in the rule of the slope above to find it

∵ m = [tex]\frac{6-0}{4-0}=\frac{6}{4}=\frac{3}{2}[/tex]

m = [tex]\frac{3}{2}[/tex]

→ Substitute it in the form of the equation above

∴ y = [tex]\frac{3}{2}[/tex] x + b

∵ The line passes through the origin

∴ The y-intercept = 0

b = 0

→ Substitute it in the equation

∵ y = [tex]\frac{3}{2}[/tex] x + 0

∴  y = [tex]\frac{3}{2}[/tex] x

The equation of the line is y = [tex]\frac{3}{2}[/tex] x

Are the ratios 19:10 and 2:1 equivalent?

Answers

n o, the ratios would have to be 20:10 to be equivalent :)

Answer: No, they are not.

Step-by-step explanation:

What is the equation of a line that passes through (-10,3) and is parallel to y =2x+9?

Answers

Answer:

-2/3.

Step-by-step explanation:

Answer:

y = 2x + 23

Step-by-step explanation:

Given

Line y = 2x + 9

Parallel line has same slope

y = 2x + b

Finding b using the given point (-10, 3)

3 = 2(-10) + b3 = -20 + b3 + 20 = bb = 23

So the line is:

y = 2x + 23

James has $11. Suppose the function f (x ) = 1.25x + 4 represents the cost to rent x video games each month. How many more dollars will James need to rent 9 video games next month? *

Answers

Answer:

$4.25

Step-by-step explanation:

First, find the cost to rent 9 video games by plugging in 9 as x:

f(x) = 1.25x + 4

f(9) = 1.25(9) + 4

f(9) = 15.25

So, it will cost $15.25. Since James already has $11, we can find how many more dollars he will need by subtracting 11 from 15.25:

15.25 - 11

= 4.25

So, James will need $4.25 more dollars

Answer:

$4.25 more dollars

Step-by-step explanation:

f(x)=1.25x+4

James wants 9 video games, so 9 would be x

1.25(9) = 11.25

then you add the fixed cost of 4

11.25+4 = 15.25

He has $11, so 15.25 - 11 = 4.25

Meaning he needs $4.25 more dollar to rent 9 video games

Four brothers received the same amount of money to go to the movies. Each boy spent $16. Afterward, the boys had $48 altogether. Write an equation that represents the amount of money m each brother received.

Answers

Answer:

Equation is: 4(x - 16) = 48

Amount each received = $28

Step-by-step explanation:

We are told that the foot brothers received the same amount of money to go to the movies.

Let's say they each receive "x" in amount.

Which means total amount is;

x + x + x + x

Now,we are told that each boy spent $16.

Thus,amount left after spending is;

(x - 16) + (x - 16) + (x - 16) + (x - 16) = 4(x - 16)

We are told this amount after spending was $48 altogether. Therefore;

4(x - 16) = 48

Divide both sides by 4 to get;

x - 16 = 48/4

x = 16 + 12

x = $28

3,910 Divided 25? i need help

Answers

Answer:

156.4 would be your answer

Step-by-step explanation:

3,910/25

15.6

If you drive 70 miles per hour for 8 hours how far can you drive

Answers

Answer:

You could travel 560 miles.

Step-by-step explanation:

To find out the answer you need to multiply 70 by 8.

70 × 8= 560

Russ has a car that averages 9.8 miles per gallon. Mike's car averages 39.2 miles per gallon. How many times more miles per gallon does Mike's car averages than Russ' s car?

Answers

Answer:

4 times

Step-by-step explanation:

This is calculated by putting them in a ratio

Russ's car : Mike's car

9.8 miles per gallon : 39.2 miles per gallon

Converting to fraction

= 9.8/39.2

= 1/4

Hence, we have the ratio:

1 : 4

Hence, Mike's car averages Russ's car 4 times more in miles per gallon

The perimeter of a triangle is
17
x

5
units. One side is
3
x
+
5
units and another is
8
x

3
units. How many units long is the third side?

Answers

Answer:

[tex]Side\ 3 = 6x - 7[/tex]

Step-by-step explanation:

Given

[tex]Perimeter = 17x - 5[/tex]

[tex]Side\ 1 = 3x + 5[/tex]

[tex]Side\ 2 = 8x - 3[/tex]

Required

Determine the length of the third side

The perimeter of a triangle is calculated as thus:

[tex]Perimeter = Side\ 1 + Side\ 2 + Side\ 3[/tex]

Substitute values for Perimeter, Side 1 and Side 2

[tex]17x - 5 = 3x + 5 + 8x - 3 + Side\ 3[/tex]

Collect Like Terms

[tex]17x - 5 = 3x + 8x + 5 - 3 + Side\ 3[/tex]

[tex]17x - 5 = 11x + 2 + Side\ 3[/tex]

Solve for Side 3

[tex]Side\ 3 = 17x - 11x - 5 - 2[/tex]

[tex]Side\ 3 = 6x - 7[/tex]

Hence, the length of the third side is 6x - 7 units

Kelsey owns a bike rental company. She charges an initial fee of $10 for each rental and an hourly rate of $4. Which of the equations below shows the amount y that Kelsey charges for a bike rental that lasts x hours?

Answers

Answer:

y=10+4x

Step-by-step explanation:

A card is drawn at random from a well shuffled pack of 52 cards. What is the probability that the card is neither a spade nor a jack?

Answers

Answer:

Okay, So neither a spade nor a jack.

Total no. of cards in adeck =52  

Number of spades =13  

Total number of non-spades out of  52  cards  =52−13=39  

Number of jack out of 52  cards =4  

Number of jack in each of three suits namely hearts, diamonds and clubs =  3  

[Since, 1 jack is already included in the 13 spades so, here we will take number of jacks is  3 ]

Neither a spade nor a jack  =39−3=36  cards in total.

Therefore, probability of getting ‘neither a spade nor a jack’=

NumberoffavorableoutcomesTotalnumberofpossibleoutcome  

=(362)/(522)  

=630/1326=105/221

Step-by-step explanation:

I hoped i helped i might have put to much but there u go!!

Help me plsssszzzzzzzzzzzzzzzzzzz​

Answers

Use the formula 1/2•b•h to find your answer

Are the expressions (3^4)^4 and 3^8 x 3^8 equivalent? I need help ASAP​

Answers

Answer:

yes

Step-by-step explanation:

(3^4)^4

this is the same as 3^(4x4)

3^16

3^8x3^8

since they are the same base just add the exponent to get

3^16

Peter's paint company made the same number of gallons of paint on Monday, Tuesday, and Wednesday. On Thursday, they made twice as many as any of the previous days. If they made a total of 20 gallons over the course of these four days, how many gallons did they make each day? Monday

Answers

Answer:

Peter's company uses on:

Monday = 4 gallons

Tuesday = 4 gallons

Wednesday = 4 gallons

Thursday = 8 gallons

Step-by-step explanation:

If they made a total of 20 gallons over the course of these four days, how many gallons did they make each day? Monday

Let the gallons of paint used be Peter's company on Monday, Tuesday, and Wednesday since it is the same amount be represented by x

On Thursday, they made twice as many as any of the previous days.

= 2x

Hence:

x + x + x + 2x = 20 gallons

5x = 20 gallons

x = 20 gallons/5

x = 4 gallons

Note that:

Thursday = 2x

Hence, = 2 × 4 gallons = 8 gallons

Hence, Peter's company uses on:

Monday = 4 gallons

Tuesday = 4 gallons

Wednesday = 4 gallons

Thursday = 8 gallons

A movie theater offers 30% off the price of a movie ticket to students from your school. The regular price of a movie ticket is $8.50. what is the discounted price that you would pay for a ticket?

Answers

Answer:

$5.95

Step-by-step explanation:

To get the discounted price, we need to find how much is taken off from the regular price.

x/8.50=30/100

30×8.50=255

255/100=2.55

$2.55

Next, we need to subtract $2.55 from $8.50 to get the discounted price.

8.50-2.55=5.95

$5.95

$5.95 is the discounted price.

I hope this helped! :)

Answer: 5.95 dollars  

Step-by-step explanation:

Which steps show how to use the distributive property to evaluate 6 times 49

A. 6(49) = 6(50-1) = 6.50 6.1 300

B. 6(49) = 6(50

1) 6.50

1 300

1299

C. 6(49)=6150 - 16.30

D. 6(19) =6150

1) = 6 to

500 1300 300

Answers

Answer:

294

Step-by-step explanation:

The distributive property for multiplication is as follows :

a(b+c) = ab + ac

We need to evaluate 6 times 49 i.e. 6(49).

We can write 49 as (50-1)

6(50-1) = 6(50+(-1))

Here, a = 6, b = 50 and c = -1

So,

6(50+(-1)) = 6(50) + 6(-1)

= 300-6

= 294

So, answer is 294. Option (A) is somehow correct.

Write an equation in slope intercept form of the line that passes through the given point
and has the given slope.
(-3,2), m = -3

Answers

Answer:

y=mx+b 2=(-3)(-3)+b

2=9+b -7=b

HELP PLEASEEE I NEED ANSWER RN.

Answers

Answer:

The first answer.

Step-by-step explanation:

-4, .075, 2.23, and 3. All you really needed was to know the square root of 5

What's the common denominator of 2/3 and 4/9

Answers

Answer:

Um, no lo sé, lo siento, solo necesito los puntos

Step-by-step explanation:

Um, no lo sé, lo siento, solo necesito los puntos

Answer:

9

Step-by-step explanation:

common denominator of 2/3 and 4/9

9 is the answer

Find the slope of the line described by 2x − 5y = −10.

Answers

Answer:

2/5 is the slope

Step-by-step explanation:

Answer: y= [tex]\frac{2}{5}x + 2[/tex] would be the equation the slope would be 2/5x

I NEED HELP ASAP! Solve for x.

Answers

Answer:

3

Step-by-step explanation:

I’m pretty sure it is 3.
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