Mathematics College

For the linear function ƒ(x) = 7x – 4, find the range of ƒ(x) at x = –2, 0, and 2.
Question 18 options:

A)

ƒ(–2) = –18, ƒ(0) = 4, ƒ(2) = 10

B)

ƒ(–2) = 18, ƒ(0) = –4, ƒ(2) = 10

C)

ƒ(–2) = 10, ƒ(0) = –4, ƒ(2) = –18

D)

ƒ(–2) = –18, ƒ(0) = –4, ƒ(2) = 10

Answers

Answer 1

Answer:

1

Step-by-step explanation:

Related Questions

yalll this is my cry for help I hate math please help mee ​

Answers

Answer:

195 yards

Step-by-step explanation:

I found three shapes in this irregular shape. the top rectangle is 8x13 which is 104 the middle rectangle is 7x9 which is 63 an the triangle at the bottom is 8x7 which is 56 but then you divide by 2 so it's 28 then you add that all and get 195.

convert 280 degrees per minute to radians per second

Answers

0.0814 radian / second

Answer:

Step-by-step explanation:

0.0814 radian / second

Jennifer buys four tubs of coleslaw. She serves two-fifths of each tub onto one plate.
How many plates can she serve before she runs out of coleslaw?

Answers

She can serve 10 plates.

2. (3 marks) A marketing company conducted a box office study and they found the following. The probability that a husband watches the movie Toy Story is 0.4 while the probability that a wife watches the movie is 0.5. The probability that a husband watches the movie, given that his wife does, is 0.7. (a) What is the probability that a married couple watches the movie

Answers

Answer:

0.35 = 35% probability that a married couple watches the movie

Step-by-step explanation:

Conditional Probability

We use the conditional probability formula to solve this question. It is

[tex]P(B|A) = \frac{P(A \cap B)}{P(A)}[/tex]

In which

P(B|A) is the probability of event B happening, given that A happened.

[tex]P(A \cap B)[/tex] is the probability of both A and B happening.

P(A) is the probability of A happening.

The probability that a husband watches the movie, given that his wife does, is 0.7.

This means that [tex]P(B|A) = 0.7[/tex]

The probability that a wife watches the movie is 0.5.

This means that [tex]P(A) = 0.5[/tex]

What is the probability that a married couple watches the movie?

Both, so:

[tex]P(B|A) = \frac{P(A \cap B)}{P(A)}[/tex]

[tex]P(A \cap B) = P(B|A)*P(A) = 0.7*0.5 = 0.35[/tex]

0.35 = 35% probability that a married couple watches the movie

please help ! I need help with math because I am failing and I might have to repeat the grade.. I have a quiz right now I don’t understand this question I will provide a photo above thank you <3! the question is “1” :)

Answers

Answer:

3:8

Step-by-step explanation:

first add up all the crayons

4+1+5+6

16

there are 6 green crayons so the ratio is

6:16

reduce by factor of 2

3:8

hi please help!!!!!!!!

Answers

Answer:

All real numbers

Step-by-step explanation:

The parabola is expanding infinitely in both the negative and positive directions. So the x value will be all real numbers.

If Ray earns $120 for 15 hours of work, how much will he earn for 20 hours of work at the same rate?
O $160
O $170
O $240
O $300

Answers

the answer would be either 300 or 170

Answer:

It 160

Step-by-step explanation:

Why is √3 an irrational number?
A.The number is a rational number.
B.The number is represented by a non-terminating, non-repeating decimal.
C.The number is a positive whole number.
D.The number can be expressed as a proper fraction.

Answers

Answer:

Step-by-step explanation:

B. The number is represented by a non terminating, non-repeating decimal.

(Strictly speaking it is irrational because it cannot be expressed as a ratio of two integers. All rational numbers can be expressed as a ratio of two integers.)

which property does the equation demonstrate? 7(6*4) = 42 + 28
Choices:
A= associative
B= commutative
C= distributive
D= identity

Answers

Answer: C

Step-by-step explanation:

7*6=42 7*4=28

Use properties of operations to find the quotient.

Answers

option D is correct one 2 3/16

-1 1/4 ÷ 4/7

-5/4 ÷ 4/7

-5/4 × 7/4 (reciprocal)

35/16= 2 3/16

d is the correct answer

At Ivanna's auto shop, it takes her 15 minutes to do an oil change and 24 minutes to do a tire change. Let x be the number of oil changes she does. Let y be the
number of tire changes she does.
Using the values and variables given, write an inequality describing how many oil changes and tire changes Ivanna can do in at most 2 hours (120minutes)

Plzzz help

Answers

Answer:

15x + 24y <= 120

Step-by-step explanation:

It takes 15 minutes per oil change, 15x

It takes 24 minutes per tire change, 24y

In at most 120 minutes, so it must be less than or equal to the time available.

Which equation is correct? o 39 x 3 = 30 x 3 + 9x 3
o 39 x 3 = 30 +9x3
o 39 x 3 = 300 × 3+9×3
39×3=30×3+9​

Answers

39x3=30x3+9x3

117=90+27

117=117

39x3=30+9x3

117=30+27

117=57

39x3=300x3+9x3

117=900+27

117=927

39x3=30x3+9

117=90+9

117=99

So the first one is correct.

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hope it helps

Eli built a 3-D model of a building, as shown below. Eli wrote the following calculation to find the volume.





Which is a correct description of the error Eli made while calculating the amount of sand needed to fill the model?
A. He did not include the volume of the horizontal prism.
B. He did not include the volume of the vertical prism.
C. He included the volume of where the prisms overlap twice.
D. He included the volume of the entire horizontal prism twice.

Answers

Answer:

The answer is C!

Step-by-step explanation:

C).

Answer:

Have a greattt day;)

Step-by-step explanation:

Look I begging you please help me out today last day finish this and I’m in class. (Will mark brainlest) and a Lil extra ;)

Answers

Answer:

Range: 5

mode: 19

median: 19

Step-by-step explanation:

Answer:

4) 22-17=5

5) 19

6) 19

7) 11-1=10

8) 6

Find the lateral surface area of the net below.
-26cm
-20cm
zlom
20cm
Record your answer, be sure to use the correct place value.

Answers

9514 1404 393

Answer:

  1040 cm²

Step-by-step explanation:

The lateral surface area of the pyramid is the area of the four triangular faces. Each one has an area of ...

  A = 1/2bh

  A = 1/2(20 cm)(26 cm) = 260 cm²

Then the area of the four faces is ...

  4 × 260 cm² = 1040 cm² . . . . lateral surface area

Which type of graphs show individual data?

bar graph
line graph
line plot
stem-and-leaf plot
will mark brainlest i promise!!!!

Answers

Answer:

Bar graphs Line graphs

Step-by-step explanation: hope it helps

Help Please! SOS! ASAP!

Answers

Answer:

45

Step-by-step explanation:

If you write it out it will look like this, 2x+45+x=180

3x+45=180

3x+45=180

    -45   -45

3x=135

/3   /3

x=45

Answer:

x=45

Step-by-step explanation:

Straight angles/lines are equal to 180 degrees. If you add the equations together to get 180 and simplify you'll find the answer. So, start out with the equation 2x+45+x=180.

1. Add like terms. 3x+45=180

2. Subtract 45 from both sides. 3x=135

3. Divide by 3 on both sides to get x by itself. x=45

4. Just to make sure, plug in 45 for x. 2(45)+45+45=180. Sure enough, it works!

Solve each equation.
11. A number x divided by nine is two.

Answers

Answer:

18 is the correct answer to this

Step-by-step explanation:

18/9=2

Find the original price of an item that is on sale for $42 if it is discounted by 20%

Answers

Answer:

$52.50

Step-by-step explanation:

Item on sale: 42

Discount: 20%

1-.2=.8

Item on Sale=Original*.8

42=Original*.8

42/.8=

$52.50

someone please help me​

Answers

Answer:

40

Step-by-step explanation:

Quadrilateral QRSU forms a euclidean kite this means PR would be 2(mST)

The black line is a graph of y=x. Which of these equations could represent the blue line

Answers

Answer:

third option

Step-by-step explanation:

y = 1/2 x

what line would be parallel to 8x-2y=7 with a point of 12,1​

Answers

Answer:

[tex]y = 4x - 47[/tex]

Step-by-step explanation:

Equation of a line:

The equation of a line has the following format:

[tex]y = mx + b[/tex]

In which m is the slope and b is the y-intercept.

Parallel lines:

When two lines are parallel, they have the same slope.

8x-2y=7

Placing into the format, we have thtt:

[tex]2y = 8x - 7[/tex]

[tex]y = 4x - \frac{7}{2}[/tex]

Slope of 4.

This means that the desired line has the following equation:

[tex]y = 4x + b[/tex]

Point of (12,1)

This means that when [tex]x = 12, y = 1[/tex]

We use this to find b.

[tex]y = 4x + b[/tex]

[tex]1 = 48 + b[/tex]

[tex]b = -47[/tex]

So, the line has the equation:

[tex]y = 4x - 47[/tex]

Tori sold 450 soft pretzels. If she sold them in groups of 15 soft pretzels, how many groups did she sell?. (Whole number only).​

Answers

Answer:

30

Step-by-step explanation:

450/15

Answer:

30 Groups

Step-by-step explanation:

She would sell 30 groups of pretzels because 450 divided by 15 equals 30.

Which number is an even number 16 27 35 or 49

Answers

Answer:

16

Step-by-step explanation:

16 is an even number not 27 35 49

Answer:

[tex]16 \: \: \: \: \: ofcourse[/tex]

How many terms are in this expression ? 9k + 4m

Answers

Answer:

2 terms

Step-by-step explanation:

Which equation is a linear function?


Help please

Answers

I believe the answer is y=x
Hope this helps

Please please like my comment

Micheal is making lemonade, He is serving 10 people. for 1 cup it takes two lemon and 3 cups of sugar.How many would it take to make 10 cups of lemonade

Answers

Answer:

look down

Step-by-step explanation:

multiply the number of lemons and sugar needed for 1 cup of lemonade by 10

so he would need 20 lemons and 30 cups of sugar.

Estimate the area of the rectangle.
A)8
B)10
C)14
D)20

Answers

Answer:

A or B, I think it's A...

Plug in the point to determine if it is on the circle
(x – 3)² + y2 = 4
(5,0)

Answers

Answer:

yes

Step-by-step explanation:

(5_3)^2+2(0)=4

substitute with the 5 to x and 0 to y

How many 1/5s are in 4?

Answers

Answer:

20

Step-by-step explanation:

4÷1/5=20

5+5+5+5=20

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