Find x if f(x) = 2x + 7 and f(x) = -1.

-3
5
-4

Answers

Answer 1

Answer:

I think the answer is 5.

Step-by-step explanation:

f(x) = 2x + 7

f(-1)=2(-1)+7

f(-1)=-2+7

f(-1)=5


Related Questions

make p the subject of the formula q - p = 3p + 5

Answers

Answer:

p=- 5-q/4

Step-by-step explanation:

i hope this is the answer

Elena mixes 5 cups of apple juice with 3 cups of sparkling water to make sparkling apple juice. For a party, she wants to make 35 cups of sparkling apple juice. How much of each ingredient should Elena use? Explain or show your reasoning.

Answers

Answer:

25 cups of apple juice and 10 sparkling water 

Step-by-step explanation:

There are 7 cups of sparkling juice in each batch, since 5 + 2 = 7. То make 35 cups Elena will need 5 batches since 5 x 7 = 25. 5 batches mean 25 cups of apple juice and 10 cups of sparkling water

(brainliest?)

My question is how do you write 2×10^-4 in standard form

Answers

Answer:

[tex]2*10^{-4}[/tex]

Step-by-step explanation:

Answer:

0.0002

Step-by-step explanation:

Which statement is true about the coordinates of points A and B?

Answers

Answer:

the 4th imagen math box

Step-by-step explanation: trust me pleses

Answer:

y/x of point A=y/x of point B

Step-by-step explanation:

Shryia read a book cover to cover in a single session, at a constant rate. After reading for 1.5, point, 5 hours, she had 402 out of the total 480 pages left to read.

Answers

Answer:

y = -52x + 480

Step-by-step explanation:

Let us assume the number of pages left be x

And, the number of hours is x

According to the question

Data given is as follows

Number of hours 1.5 and 5

Total pages 480

Left pages 402

Based on the above information,

The computation is shown below;

Pages read by Shriya in 1.5 hours is

= Total pages in the book - left pages to read

= 480 pages - 402 pages

= 78 pages

And, there is 1.5 hours

So in one hour she read

= 78 pages ÷ 1.5 hours

= 52 pages per hour

So, the equation is

y = -52x + 480

Bradley completed 3/5 of his homework. What percent of his homework has he completed?

Answers

Answer:

60%

Step-by-step explanation:

3/5 of 100% is 60%

Answer:

60% is the answer

What is the measure of angle x?

Answers

[tex]\mathfrak{\huge{\pink{\underline{\underline{AnSwEr:-}}}}}[/tex]

Actually Welcome to the Concept of the Angles.

Applying, angle sum Property of a triangle and linear pair, we get as,

180°-107 = 73°

, now angle sum property,

=> 31+73+p = 180

=> p = 180-104

=> p = 76°

here, angle p = angle x, they are vertically opposite angles, hence,

x = 76°

hence

Find the slope of the line that passes through these two points.
(-2, 11) and (5, 6)

Answers

Answer:

-5/7

Step-by-step explanation:

(y2-y1)/(x2-x1) (6-11)/(5--2)

-10.2+c=-8.14
Helpppp

Answers

Answer:

c=18.34

Step-by-step explanation:

please can someone express √5 as a fraction? ​

Answers

Answer:

SInce this continued fraction does not terminate, we can tell that √5 cannot be represented as a terminating fraction - i.e. a rational number. So √5 is an irrational number a little smaller than 214=94 . For better rational approximations you can terminate the continued fraction after more terms.

hope this help!

what is 18 divided by y

Answers

Answer:     0

 

Step-by-step explanation:

Fully simplify to one fraction.
x+3+3x/x+5

Answers

Answer:

[tex] \frac{4x + 3}{x + 5} [/tex]

Step-by-step explanation:

add x and 3x

Pleaseeeee helpppp xxx

Answers

Here ya goooo
(-4,-2)

Answer:

(-4, -2)

Step-by-step explanation:

(x, y)

You plug in the number where x is, so that’s going to be -4.

You plug in the number where y is, so that’s going to be -2.

I hope this helps some!

36. Mrs. Moore bought one gallon of milk at
$3 per gallon, three loaves of bread at
$2 per loaf, one pound of cheese at $4 per
pound, and six cans of soup at two cans for
$3. What was the total cost of the food?

Answers

the total cost is $22

Guys plssssssss! I want to spend time today and tomorrow with my fam before they go back to Washington

Answers

Answer:

IF its a pretest the grade doesnt count im pretty sure.

Answer:

1. 15% of 48= 7.2

2. 25% of 80= 20

3. 135% of 70= 94.5

4. 7/10 of 100= 0.7

5. Solution for 36 is what percent of 50:

36: 50*100 =

(36*100): 50 =

3600: 50 = 72

6. Solution for 4 is what percent of 20:

4: 20*100 =

(4*100): 20 =

400: 20 = 20

7 30 is 50% of what number

50% is half of 100 so all you do is times the number by 2 which is 30 to get 60

8. 2 is 25 percent of what number?

again 25% you need to do 4 times 25 to get 100 so you do 12 x 4 and you get 48

9 its 800 so 75 again is 3 x 25 so you divide 600 by 3 and you get 200 so then to get 100 percent you do 4 x 200 and you get 800 so the awnser is 800

Step-by-step explanation:

A six-sided die is tossed and a coin is flipped. What is the fractional probability that the die lands on an even number and the coin is heads?

Answers

Answer:

the die: 1/2, coin: 1/2

Step-by-step explanation:

There are 6 sides on a die and 6 numbers, 3 are even numbers which means 3/6. simplify it to get 1/2

there are 2 sides on a coin, one is heads. Therefore, the probability is 1/2

The fractional probability that the die lands on an even number and the coin is heads is [tex]\frac{1}{4}[/tex].

What is probability?

"Probability is the branch of mathematics concerning numerical descriptions of how likely an event is to occur, or how likely it is that a proposition is true. The probability of an event is a number between 0 and 1, where, roughly speaking, 0 indicates impossibility of the event and 1 indicates certainty."

Given, a die is tossed and a coin is flipped.

Therefore, the number of outcomes in case of die is 6 and the number of favorable outcomes is 3.

Hence, in case of the die, probability of getting an even number is P(A) = [tex]\frac{3}{6}[/tex] = [tex]\frac{1}{2}[/tex].

Again, the number of outcomes in case of the coin is 2 and the number of favorable outcomes is 1.

Hence, in case of the coin, probability of getting head is P(B) = [tex]\frac{1}{2}[/tex].

Now, the fractional probability that the die lands on an even number and the coin is heads is = P(A) × P(B) = [tex]\frac{1}{2}[/tex] × [tex]\frac{1}{2}[/tex] = [tex]\frac{1}{4}[/tex].

Learn more about probability here: https://brainly.com/question/16484393

#SPJ2

Solve for the missing distance 30m 39​

Answers

Answer:

Pls evaluate the question more

Step-by-step explanation:

The sum of two numbers is 73. The difference of two numbers is 29. Find the two numbers.

Answers

Answer:

the answer is 35 and 38 because 35+38 is 73 and when u subtract 35 from 38, you get 3.

Step-by-step explanation:

What is the product of -8/9 x -6/7

Answers

Answer:

16/21

Step-by-step explanation:

In the first fraction, the negative numerator and negative denominator cancel each other.

In the second fraction, the negative numerator and negative denominator cancel each other.

The equivalent equation is

8/9×6/7=?

For fraction multiplication, multiply the numerators and then multiply the denominators to get

8×6/9×7=48/63

This fraction can be reduced by dividing both the numerator and denominator by the Greatest Common Factor of 48 and 63 using

GCF(48,63) = 3

4/8÷43/63÷3=16/21

Therefore:

−8/9× −6/7=16/21

which is perpendicular to the line y=-3x-8y

Answers

Answer:

I believe the answer is y = -7/3x

Step-by-step explanation:

When you rearrange the equation, y = -3x - 8y, you will get -7y = -3x.

We want the equation to be equal to y by itself. So we divide -7 from both sides, giving us the equation y = 3/7x.

The graph that is perpendicular to y = 3/7x is it's reciprocal: y = -7/3x

Answer:

3

Step-by-step explanation:

Find the Slope of a Perpendicular Line

y = −3x − 8y

Rewrite in slope-intercept form.

The slope-intercept form is y = mx + b, where m is the slope and b is the y-intercept.

y = mx + b

Move all terms containing y to the left side of the equation.

9y = −3x

Divide each term by 9 and simplify.

y = −(x/3)

Write in y = mx + b form.

y = -(1/3)x

Using the slope-intercept form, the slope is − (1/3)

m = -(1/3)

The equation of a perpendicular line to y = − (1/3)x must have a slope that is the negative  reciprocal of the original slope.

[tex]m[/tex]perpendicular = [tex]-\frac{1}{-\frac{1}{3} }[/tex]

Simplify the result.

[tex]m[/tex]perpendicular = 3

KONG
The population of Kingsfield grew from 5,400 people to
7,200 people in one year. During the same time, the
population of Queensville dropped from 24,000 people to
19,600 people. If these rates continue, how many years
before the two towns have the same population?

Answers

Answer:

The population of a town grew from 20,000 to 28,000. The continuous growth rate is 15%. The equation represents the situation, where t is the number of years the population has been growing. About how many years has the population of the town been growing? Use a calculator and round your answer to the nearest whole number.

I found some info on a Quiz maybe this can help a bit

Have a Nice Day!

Can anyone help me pleasesss

Answers

Answer:

$7 per week

Step-by-step explanation:

39 - 37 = 7

1 - 0 = 1

7/1 = 7

Answer:

7

Step-by-step explanation:

39 - 32 (one week) = 7

53 - 39 (2 weeks) = 14, 14/2 = 7

10x10= what
please answer i want to see if it works

Answers

Answer:

100

Step-by-step explanation:

10 x 10 = 100

Answer:

100 is the correct answer !!

Step-by-step explanation:

pls help me sisters






Answers

Answer:

Look below

Step-by-step explanation:

0.25: Drag 1/4 and the square

0.6: Drag 60/100 and the rectangle

0.75: Drag 6/8 and the circle

Answer:

First Box: 0.75

Second Box: 0.25

Third Box: 0.75

4th Box: 0.25

5th Box: 0.6

6th Box: 0.6

The total length of a beach is 13.2 kilometers. If lifeguards are stationed every 0.6 kilometers, including one at the end of the beach, how many lifeguards will there be on the beach?

Answers

Answer:

22 including one at the end of the beach

Step-by-step explanation:

Total length of the beach = 13.2 kilometers

If lifeguards are stationed every 0.6 kilometers, INCLUDING one at the end of the beach

Number of lifeguards in the beach = Total length of the beach / distance interval of each lifeguards

= 13.2 kilometers / 0.6 kilometers

= 22

Number of lifeguards in the beach = 22 including one at the end of the beach

The model below represents an equation.

2 long x tiles and 3 square 1 tiles = 3 long x tiles

Which represent like terms in the model of the equation?
2 long x tiles and 3 square 1 tiles
2 long x tiles and 3 long x tiles
3 long x tiles and 3 square 1 tiles
1 long x tile and 1 square 1 tile

Answers

Answer:

The answer is B

Step-by-step explanation:

If I got it right on edg, you'll get it right on edg, unless we are talking about two different questions--- which we are not. Same question, right answer.

Answer:

b

Step-by-step explanation:

bc i said

write each number in standard form 6.7x10 to the 1 power

Answers

Answer: 67

Step-by-step explanation: 6.7 x 10^1 = 67

When you graph a linear function, slope refers to the steepness of the line the function makes. The slope of this line is the same as the
of the linear function. The slope can be expressed as a decimal, fraction, or integer.

Answers

Answer:

you are the only person I can be of assistance to

Step-by-step explanation:

ok is the best friends to come in the medicine and the

On the way back home, the Anderson family must stop at the gas station to fill up. What isthe total distance of their trip? Round your final answer to the nearest kilometer

Answers

Answer:

The total distance will remain unchanged as the gas station is on their way to home.

Step-by-step explanation:

The total distance of the trip will the distance between home to the destination and way back. If the Anderson family is stopped to fill gas in their car. The total distance of the trip is not affected by the stop in their route. If the gas station is located far from the route they follow then the distance will change.

10x + 4y = 20
13x - 4y = -66
If x = -2, what is the value of y?

Answers

Answer:

y = 10

Step-by-step explanation:

If x = -2

10x + 4y = 20

10(-2) + 4y=20

-20+4y=20

4y= 20+20

4y=40

y=10

If x=2 and y=10

13x - 4y = -66

13(-2) - 4(10) =-66

-26 -(-40) = 66  so it all checks out!!

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