Find x if f(x) = 2x + 7 and f(x) = -1.
a.5 b.-3 c.-4​

Answers

Answer 1

Answer:

Answer c. -4

Step-by-step explanation:

Equations

Given:

f(x) = 2x + 7

We need to find the value of x such that:

f(x) = -1

Equating:

2x + 7 = -1

Subtracting 7:

2x = -1 - 7

Operating:

2x = -8

Dividing by 2:

x = -8 / 2 = -4

x = -4

Answer c. -4


Related Questions

PLS HELP ASAP

(2,9)(3,4)(-2,5) is this a function

Answers

Answer:

Not a function

Step-by-step explanation:

when plotted the points do not form a line

Answer:

no its not a function

Explanation:

A function is a relation (a set of ordered pairs) with the additional property that: no two pairs have the same first element and different second elements.

The definition is often stated as: A relation in which every x value is associated with exactly one y value. "Exactly one means one but two or more:

{(1,2);(2,3);(3,4);(2,5)} includes the points (2,3) and (2,5). Therefore these set of pairs are not a function.

What is the probability that a point chosen at random in the triangle is also in the blue square?
O 1/6
O 1/3
O 1/2
O 1​

Answers

Answer:

1/3

Step-by-step explanation:

Area of a triangle = 1/2 x base x height.

Area of the shown triangle = 1/2 x 9 x 6 = 27 square inches.

Area of blue square = 3 x 3 = 9 square inches.

The probability of being in the blue are of the triangle = 9/27 which reduces to 1/3

Amy and rose both compete in a race. Amy takes 42.8 seconds to finish, and Rose finishes in 49.2 seconds. How many seconds faster was Amy than Rose?

Answers

Answer:

6.4 seconds

Step-by-step explanation:

you subtract roses time by Amys time to find the difference.

WEATHER The highest and lowest recorded temperatures for the state of Texas are 120°F and -23°F. Find the difference in these extreme temperatures?

Answers

Answer:

the answer is 143°

Step-by-step explanation:

120 - (-23) = 143

The difference between the highest and the lowest temperature will be 143 Fahrenheit.

What is an expression?

Expression in maths is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.

Given that the highest and lowest recorded temperatures for the state of Texas are 120°F and -23°F.

The difference will be calculated by forming the equation below:-

Difference  = 120 - ( -23 )

Difference  = 120 + 23

Difference  = 143

Therefore, the difference between the highest and the lowest temperature will be 143 Fahrenheit.

To know more about an expression follow

https://brainly.com/question/878985

#SPJ6

a delivery person uses a service elevator to bring boxes of books up to an office. the delivery person weighs 160 lb and each box of books weighs 50 lb. the maximum capacity of the elevator is 1400 lb. how many boxes can the delivery person bring up at one time?

Answers

He can carry around 6 boxes. How? So add one box of books and himself. You should get 210 lb. Afterwards, do 1,400 lb / 210 lb, since the max capacity of the elevator is 1,400 lb. You will get 6.666 and repeating. It will only be 6 boxes at one time. Do NOT round the decimal. The elevator will not be able to take 7 boxes PLUS himself. Otherwise the elevator will crash and fall. Hope this helped!

Here is my other question?

Answers

Answer:

Triangle A has one right angle

Step-by-step explanation:

a triangle can only have one right angle in it

this angle can be symbolized by the little square thing you see in the corner of the first picture

I need to find the answer for "n" -(n - 8) = -2

Answers

Answer:

n = 10

Step-by-step explanation:

you can also use( Math -way) its a calculator for any math problem gives you answers fast :) hope i helped  

What is 1 + 1? Figure out the question 1st for brainliest.

Answers

\THE ANSWER IS 2 I WAS FIRST

(I will give brainliest and extra points if you help me!! <3)

Solve three and one half times one and two thirds.

A) three and two sixths
B) four and two sixths
C) five and five sixths
D) six and five sixths

Answers

Answer:

im guessing c. I got 5.833333333

Step-by-step explanation:

Answer:

Mixed number: 5 5/6. Decimal 5.8333333.

Step-by-step explanation:

3 1/2 x 1 2/3

(3 x 2) + 1 = 7/2

(1 x 3) + 2 = 5/3

7/2 x 5/3 = 35/6

35 ÷ 6 = 5 5/6.

So its C.


Create one original post that
.
Summarizes a movie, television show, or personal experience.
Explains how you decide what to include in a summary.
Explains how you identify the main idea.
• Explains which details are important to include and why.
Explains why might you summarize the same information differently for
different audiences.

29 points!!!!!!!!!

Answers

Answer:

A movie: For entertainment!!!

Step-by-step explanation:

Write the equation of the line that is parallel to y=4x-3 and passes through the point (5,12)

Answer?

____________

Answers

Answer

y=4x-8

Step-by-step explanation:

m = 4

y- 12 = 4(x-5)

simplify and keep it in point-slop form

y=4x-8

Select the correct answer.
Libby bought 250 stocks of a company named Xylet last year. Xylet's total earning for the year is $ 4million and it has 1,000,000 outstanding
stocks. What is Xylet's Earning per share (EPS)?
OA. 4
OB. 0.04
C. 40
OD
400

Answers

Stocks = 250

Net income = $4,000,000

Outstanding Shares = $1,000,000

Earnings Per Share = ?

Formula: EPS = Net Income / Outstanding Shares

Solution: EPS = Net Income / Outstanding Shares

= $4,000,000 / $1,000,000

= 4

Answer: Earnings Per Share = 4

Answer:

4

Step-by-step explanation:

PLATO correct answer

Find the Slope -6,7 -10,10

Answers

Answer: -4,3

Step-by-step explanation: When you find slope of two points you do the change of y over x. Which basically means you subtract x and subtract y. Both values. -10-(-6) 10-7. -4,3.

NEED HELP !! give the following information about the linear function on the graph shown.

Answers

Answer:

x-intercept = 6

y-intercept = -4

Slope: m = ⅔

f(3) = -2

Step-by-step explanation:

✔️The x-intercept is the value of x when y = 0. It is the point at which the line of the function intercepts the x-axis. Thus,

x-intercept = 6

✔️The y-intercept is -4. At this point, x = 0. The line intercepts the y-axis at y = -4. Thus,

y-intercept = -4

✔️Slope can be calculated using two points, (0, -4) and (6, 0).

[tex] slope (m) = \frac{y_2 - y_1}{x_2 - x_1} = \frac{0 -(-4)}{6 - 0} = \frac{4}{6} = \frac{2}{3} [/tex]

Slope: m = ⅔

✔️f(3) means, what is the value of y when x = 3.

From the graph, when x = 3, y = -2.

Therefore,

f(3) = -2

4x+5=17-2x systematic method solve the equation and check result​

Answers

Answer:

x=2

Step-by-step explanation:

add 2x to both sides and subtract 5 from both sides

6x = 12

divide by 6

x=2

Five-Hundred Ninety-Eight times four

Answers

5 9 8

×    4

2 3 3

2 3 9 2

2392 is your answer

The answer 2,392!!!!!

write an equivalent system of equations to the following of equations: 2x+2y=-6 and x-4y=2​

Answers

Answer:

A system of equivalent equations is:

x + y = -3

2x - 8y = 2

Step-by-step explanation:

Given

2x + 2y = -6

x - 4y = 2

Required

Write a system of equivalent equations

A system of equivalent equations implies that:

When the new set of equation is solved, the solution is equivalent to the original equation.

To do this, we have to carry out the same operation on both sides of the given equation.

Take for instance

2x + 2y = -6

Multiply both sides by ½

½(2x + 2y) = -6 * ½

x + y = -3

x + y = -3 is equivalent to 2x + 2y = -6

Multiply both sides of x - 4y = 2 by 2

2(x - 4y) = 2 * 2

2x - 8y = 4

2x - 8y = 4 is equivalent to x - 4y = 2

Hence, a system of equivalent equations is:

x + y = -3

2x - 8y = 2

Note that there are more equivalent equations.

The results you get depend on the operation performed on the given equation.

what is 2+2 in math and the answer is 4

Answers

Answer:

4

Step-by-step explanation:

helppp please I need it will give brainliest

you have to write an equation ​

Answers

Answer:

c=100g+50

Step-by-step explanation:

c is the total cost

there is a 50 dollar fee and 100 dollars per guest

so for every guest, the cost is increased by 100

since there are g number of gusts, the price for the guests will be 100g dollars

since there is also a 50 dollar fee, 50 dollars has to be added to the 100g

therefore c=100g+50

Which set of absolute values is compared correctly? A. |-10| |-10| > |-12| > |17| C. |10| > |-15| > |-5| > |2| D. |-10| < |12| < |-15| < |17|

Answers

Answer:

D. |-10| < |12| < |-15| < |17|

10 is less than 12, which is less than 15, which is less than 17.

Step-by-step explanation:

A. |-10| |-10| > |-12| > |17|

12 is not greater than 17.

C. |10| > |-15| > |-5| > |2|

5 is not greater than 2.

f (x) = –2x+1
If
f (x) = 11
Find the value of x:

Answers

Answer:

Now x is equals to 11

-2(11) + 1 = - 22 + 1 = - 21

The answer is - 21

Thank you and please rate me as brainliest as it will help me to level up

Mark studied a group of 30 whales. If each whale weird approximately 3.8x10.5 pounds, find the total weight of all 30 whales. Express in Scientific notation.

Answers

Answer:

1.197 * 10^3 lbs

Step-by-step explanation:

3.8 * 10.5 = 39.9 lbs each

Now, we multiply 39.9 by 30, which is 1197 lbs in total

In scientific notation, 1197 is 1.197 * 10^3

I hope this helped, please mark Brainliest, thank you !!

Answer:

114 × 10 ^ 5

Step-by-step explanation:

30: Number of whales

380,000: weight of each whale

30 × 38,000 = 11,400,000 total weight

Scentific notation: Expressing large numbers in a smaller way so

114 × 10 exp 5

What is the fraction equivalent to 3/9?

Answers

Answer:

1/3 or 2/6

Step-by-step explanation:

hope this helps :)

A box of cereal states that there are 90 calories in a 3/4 cup serving. How many calories are there in 4 cups of that cereal?

Answers

Answer:

Lets call the calories in one cup 'x'

so (3/4)x=90

Solving for x:

x=(90)/(3/4)

x=120

Now for 4 cups:

(4)(120)=?

480 calories in 4 cups of cereal

Answer: 480.

Step-by-step explanation:

3/4=90 so 1/4=30 so 30x4 is 120. 120=4/4=1 cup. 4 cups is 120x4=480, have a good day :D

Jason’s family drove 120 miles using 5 gallons of gas. At this rate, how many miles can they drive on 8 gallons of gas? Use the number-line diagram shown.

image d54bd69863f440d4825eb959d7d85b0d

A.
192 miles


B.
960 miles


C.
24 miles


D.
600 miles

Answers

Answer: 192 miles

Step-by-step explanation:

120/5=24

24*8=192

What is the solution to this system of equations?
3x + 2y = 10
2x + 4y = 4
0 (4,-1)
O (4,1)
O (1,2)
O (-4,3)

Answers

You can use elimination for this one so you can say

-2(3x+2y=10)
+2x+4y=4

So you have

-6x-4y=-20
+2x+4y=4

So you have

-4x=16

So x=-4

And then you can plug x into any one of the equations and solve for y

2(-4)+4y=4

-8+4y=4

Add 8 on both sides to get

4y=12

y=3

So in ordered pair form your answer is (-4,3)

Hope this helps!! Mark as brainliest!!!

Which city is the largest percent of people taking the train

Answers

Answer:

new york

Step-by-step explanation:

it has the highest number

Match the number with its opposite. (4 points)

Answers

I hope this helps!!!

1.C
2.A
3.B
4.D

What is the Equivalent ratios for 16:14

Answers

Answer:

14:16

Step-by-step explanation:

Answer:

8:7 or 8/7

Step-by-step explanation:

Ratios work the same as fraction because they can also be written as fractions therefore, the ratio 16:14 can also be written as 8:7 or 8/7

Please answer as fast as possible see the image

Answers

Answer:

111.9 units

Step-by-step explanation:

Area of semicircle: 1/2(πr^2)

r = 3

1/2(π(3)^2)

33.92920065

Area of Rectangle: w * l

l = 13

w = 3(2)

13 * 3(2) = 13 * 6 = 78

Total:

78 + 33.9 = 111.9 units

Answer:

92.1

Step-by-step explanation:

total area = rectangle + semicircle

                = (13 x 6) + (1/2 π 3²)

                = 78 + 14.1

                = 92.1

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