Mathematics High School

Find the value of f(-7).

Answers

Answer 1

Answer:

f(-7) = -4

Step-by-step explanation:

We want to find the value of the function when x = -7

The y value of the function when x= -7 is -4

f(-7) = -4

Answer 2

Answer:

f(-7)=-4

Step-by-step explanation:

If you look at the x, in this case -7, and follow it down to where it stops on the parabola, you will see that it's y value is -4.

Related Questions

write each fraction or mixed number as a decimal
[tex]1 \times \frac{1}{2} [/tex]

Answers

1.0 x 0.5 eeeeeeeeeeeeeeeee

In triangle ABC, the measure of angle A is 48° and the measure of angle C is 24°. What type of triangle is triangle ABC?

Answers

Answer:108 degrees

Step-by-step explanation:

Answer:

Scalene triangle

Step-by-step explanation:

24+48= 72

180-72=108

All three angles are different meaning that the triangle must be a scalene triangle.

messag
The length of each of the two congruent sides of an isosceles triangle is 3x - 1. The length of the third side is 2x + 1. The perimeter is 55 feet. Which equation does NOT represent the perimeter?

8x - 1 = 55

6x - 2 + 2x + 1 = 55

2 (3x - 1 + 2x + 1) = 55

2 (3x - 1) + (2x + 1) = 55

Answers

Answer: The third choice

Explanation:

This equation does not represent the perimeter.

To write the equation:

2(3x - 1) + (2x + 1) = 55
6x - 2 + 2x + 1 = 55
8x - 1 = 55

Thus, 3 of the choice represent but the the third choice didn’t appear in the equation.

is y=.75x+2 proportional or non proportional

Answers

Answer:

non proportional

Step-by-step explanation:

Explain why when dividing fractions with the same denominator, you can find the quotient by dividing the numerators.

Answers

Answer:

It is because they are fractions of the same numbers so if you devide the numerator, you will get the quotient

sorry for my spelling lol

Step-by-step explanation:

Which number would make this inequality true?

______ <0.271

0.27100

0.28

0.21

0.309

Answers

0.21 because it is the only one smaller than 0.271 plz mark brainliest, trying to be virtuoso

that answer is correct also ^^^

question says.

which number would make this inequality true?________< 0.271

answer is

0.21

have a good day!!

what is the y-intercept of (5,8) and (12,36)

Answers

Answer:

The y intercept is (0,-12)

Step-by-step explanation:

You use the slope formula and the slope-intercept form to find the slope m and then the y intercept b.

Answer:

(0, -12)

Step-by-step explanation:

In order to find the y-intercept of the equation y = mx + b ( where m is the slope and b is the y-intercept), we first have to find the slope. We can do this by using the two points given to us.

To find the slope:

The slope is equal to: [tex]\frac{y2 - y1}{x2 - x1}[/tex]

Let's plug (5,8) and (12,36) into the equation:

[tex]\frac{36 - 8}{12 - 5}[/tex]

Now let's solve for the slope:

36 -8 = 28

12 - 5 = 7

So we get: [tex]\frac{28}{7}[/tex]

Now that we've found the value of the slope, we can put it into the equation:

y = [tex]\frac{28}{7}[/tex]x + b

To find the value of b, we can input the values of one of the given points into the equation and solve for b. Let's use (5,8):

Input the values of x and y into the equation: 8 = [tex]\frac{28}{7}[/tex](5) + b

Multiple [tex]\frac{28}{7}[/tex] by 5: 8 = [tex]\frac{140}{7}[/tex] + b

Divide 140 by 7: 8 = 20 + b

Subtract 20 from both sides of the equation to isolate b:

8 - 20 = 20 - 20 + b

-12 = b

The y-intercept is (0, -12).

Problem 1:
The owner of the store bought the
computers for $299.99 each and
wants to mark-up 40%. How much
will the computers cost after the
mark-up?

Answers

Answer:

It will cost $120.00

Step-by-step explanation:

A backpack originally costs $35.It is on sale for $22.75. Find the percent of decrease.

Answers

maybe 28% i think it’s tgat

Answer:

the answer is 35%

Step-by-step explanation:

Pens cost 3 dollars each at the school store.
How much would 2, 3, and 4 pens cost?
Complete the table below this relationship.
Show me how to graph this please my number is 4045137545 text me and ill send you my work

Answers

Answer:

Step-by-step explanation:

It would look something like the picture

Answer:

Step-by-step explanation:

Ashly has money automatically deposited in to a saving account each week after 4 weeks she have 20 dollars after 6 weeks she have 30

Answers

Answer:

5 dollars per week

Step-by-step explanation:

20 ÷ 4 = 5

30 ÷ 6 = 5

I believe that is your question.

f(x) = -4x – 2, solve for x when f(x) = 6

Answers

Step-by-step explanation:

[tex] - 4x - 2 = 6[/tex]

[tex] - 4x = 8[/tex]

[tex]x = - 2[/tex]

Is this a negative or positive?

Answers

Answer:

Positive.

Step-by-step explanation:

Two negative numbers multiplied is a positive number.

FYI, (-5)(-4) is 20.

Hope this helped!

Answer:

positive

Step-by-step explanation:

[ (-) × (-) = +]

please help me!!!! I don't know what the answer is!!!
Which image is the translation of ΔABC given by the translation rule (x,y) → (x-2, y-2)?

A. (look at pic)
B. (look at pic)
C. (look at pic)
D. (look at pic)

Answers

Answer:

Step-by-step explanation:

So when you translate triangle ABC, you have to subtract 2 from each part of the coordinate, aka move it 2 to the left and 2 down.

Therefore, it would be D

Hope that helps! :D

There are 366 days in a leap year and 24 hours in a day. How many hours are in a leap year?

Answers

Answer: 8784

Step-by-step explanation: Just multiply 366 and 24

Charles spent $2.85 on train tickets every day for 15 days. What is the amount of money Charles spent on these train tickets?

Answers

Answer:

charles spent $42.75

Step-by-step explanation:

2.85*15+=42.75

a rectangle has an area of 651m². One of the sides is 7m in length. Work out the perimeter of the rectangle

Answers

Answer:

200

Step-by-step explanation:

So first off, let's find the other side.

651 divided by 7 = 93

93 would be the other side measurement. There are two sides that measure 93 degrees, two sides that measure 7 degrees.

93 + 93 + 7 +7 = perimeter

Once we add up like terms, 200

How do I solve this equation?

Answers

Answer:

Step-by-step explanation:

2x-3=11

14=2x

x=7

the answer is 7.

x=-4

Step-by-step explanation:

|2x-3|= 11

-2x+3 = 11

-2x = 8

x = 8/-2

x= -4

Hope it helps you

a waterslide has an angle of elevation of 20 degrees whats is the rise for a run of 2.6 m?

Answers

Answer:

Therefore, the rise will be 0.95 m

Step-by-step explanation:

As the waterslide has an angle of elevation of 20 degrees.

Ф = 20°

And we have to determine the rise for a run of 2.6 m.

All we need is to use the trigonometric ratio of tan Ф

Because

tan Ф = rise/run

run = 2.6 m

Ф = 20°

tan Ф = rise/run

tan (20) = rise/run

rise = tan (20) × 2.6

rise = 0.95 m

Therefore, the rise will be 0.95 m

tan51 degrees = x/14.8. Solve for x. Round to the nearest hundredth.

Answers

Answer:

x ≈ 18.28

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Step-by-step explanation:

Step 1: Define

tan51° = x/14.8

Step 2: Solve for x

Multiply 14.8 on both sides: 14.8tan51° = xEvaluate: 18.2765 = xRewrite: x = 18.2765Round: x ≈ 18.28

PLEASE HELP NOW LIKE LITERALLY. ILL GIVE BRAINLIST AND FULL STAR!!

Answers

Answer:

A= 3/2 B=2/5 C=5/5 (1) D=4/3 E=1/4 F=0 (?)

Step-by-step explanation:

rise over run, otherwise I don't know what you'd be inputting

Answer:

A. 3/2

B. 2/5

C. 1

D. 2

E. 1/4

F. 0

-2/3 minus (-4/6)=

Answers

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[tex] - \frac{2}{3} - ( - \frac{4}{6} ) = \\ [/tex]

[tex] - \frac{2}{3} + \frac{4}{6} = \\ [/tex]

[tex] - \frac{2}{3} + \frac{2 \times 2}{2 \times 3} = \\ [/tex]

[tex] - \frac{2}{3} + \frac{2}{3} = 0\\ [/tex]

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Help me please I’ll mark brainliest.

Answers

Answer:

40x

400

Step-by-step explanation:

you can find the pattern by dividing the output by the input

80/2 =40

240/60 =40

therefore, whatever number you have it will be muiltiplied by 40.

the answer is fourty

Nick is given $50 on a vacation. He decides to spend $5 a day. Write an equation relating to the amount of money Nick has left, y, and the number of days, x, Nick spends money

Answers

Answer:

y = -5x + 50

Step-by-step explanation:

We'll write the equation in y = mx + b form, where b is the original amount of money (50), and m is the amount of money he spends he each day(5). Since he's spending 5 dollars, that means that 5 dollars is being lost everyday, so m will be -5:

y = -5x + 50

Hope this helps :)

how do i solve -3=-2x+1 by graphing?

Answers

Answer:

Step-by-step explanation:

Milan
putting money into a savings account. He starts with $350 in the savings account, and each week he adds $60.

Let S represent the total amount of money in the savings account (in dollars), and let W represent the number of weeks Milan has been adding money. Write an
equation relating S to W. Then use this equation to find the total amount of money in the savings account after 17 weeks.

Answers

Answer:

Milan will have $1,370 in the account after 17 weeks.

Step-by-step explanation:

S(W) = 350 + 60W

S(17) = 350 + 60*70 = 1370

y=sxw+n

y= 350xw+60

Step-by-step explanation:

so yea

Correct answer will get brainiest!

Answers

Answer: x=24

Step-by-step explanation:

easy

X=24 its easy i took the test:)

what is the value of x for the equation: x/3+x=x/6-1

Answers

(x/3) + x = (x/6) - 1
6x/3x = 2x
2x + x = 3x
3x = -1
x = -1/3

Answer:

I think the answer may be

X=2

Step-by-step explanation:

x÷3+x=x÷6-1

Add the common factors together to get

2x÷3=x÷6-1

subtract on the right side to get

2x÷3=x÷5

subtract 3 from both sides to get

2x=x÷2

subtract x from both sides to get

1x=2

Need help! Anyone know?

Answers

It’s 90 degrees because it’s a right angle

Write each expression
as a cube
27x^3

Answers

Answer:

How though?

Step-by-step explanation:

(3x)^3 I think this is what you mean!!

Other Questions

HELP ASAP Which of the following choices is not evidence supporting the theory of plate tectonics?A. jigsaw puzzle-like fit of the continentsB. remnants of rock match on different continentsC. fossils found on different continents matchD. ancient cave drawing found in France2. Geologists have long recognized that earthquakes are not randomly distributed on Earth but occur in concentrated areas that coincide withA. Mountain rangesB. plate boundariesC. continental bordersD. areas of liquid magma3. and provide evidence for the theory of A. Fault zonesB. supercontinentsC. Sea floor spreadingD. Plate tectonics Cold water near the ocean floor often flows in deep-water currents. The cold water flows toward the deepest regions of the ocean becausea.it is more dense than the warm water above it.b.the water above it contains less algaec.the water above it is frozen in icebergs.d.it is warmer than the cold water above it. What form is the equation in?y = 2x2-8x+7 Compare and contrast the the ways that the scientists described in "Developing Robot Brains" and George Washington Carver solve problems. Which of the following explains why a mountain can become flat after millions of years?Weathering and erosion cause the soil from the mountain to erode down the mountain's slope. Heat from the sun causes the soil to dry out, decreasing the mountain's volume and causing it to sinkAnimals walking and running across the land compact the soil over time until it becomes flatThe mountain crumbles away after losing all its nutrients because there are too many trees The concept addressed in question two is meant to be a metaphor for otherareas in the story. How does this same concept apply elsewhere? two features of indirect democracy True or false. when objects collide , some momentum is lost calclulate the mass of one molecule of nitrogen in gram Which choice best describes the climate of the Arabian Peninsula?hot temperatures with high humidityseasonal hot and cold temperaturescool temperatures with little heatwarm temperatures with low humidity What is the difference between Die, Das, and Der? S. Simplify 15 - 5x + 7x -20 + 8x. (1 point)O 30x - 25O20x +35O 10x - 50-25x+ 30 Up until the mid-19th century, most Irish immigrants in America were members of the Protestant middle class. When the Great Potato Famine hit Ireland in 1845, close to 1 million poor and uneducated Irish Catholics began pouring into America to escape starvation. Despised for their alien religious beliefs and unfamiliar accents by the American Protestant majority, the immigrants had trouble finding even menial jobs. When Irish Americans in the country's cities took to the streets on St. Patrick's Day to celebrate their heritage, newspapers portrayed them in cartoons as drunk, violent monkeys.The American Irish soon began to realize, however, that their large and growing numbers endowed them with a political power that had yet to be exploited. They started to organize, and their voting block, known as the "green machine," became an important swing vote for political hopefuls. Suddenly, annual St. Patrick's Day parades became a show of strength for Irish Americans, as well as a must-attend event for a slew of political candidates. In 1948, President Harry S. Truman attended New York City 's St. Patrick's Day parade, a proud moment for the many Irish Americans whose ancestors had to fight stereotypes and racial prejudice to find acceptance in the New World.All of the following are implied by the passage EXCEPTA. The Irish immigrants came to America to find new opportunities and break away from the scarcity in Ireland which was ravaged by the Potato Famine.B. Green Machines were first created to exploit the growing Irish population in America and form a formidable voter group.C. The first St. Patrick's Day celebrations were not welcomed positively by the American public.D. Most politicians who supported the cause of the Irish immigrants were Democrats.E. The Irish population in America had grown to more than several hundred thousands by the end of the mid 19th century. Explain Operation Enduring Freedom HELP THIS IS DUE IN 10 MINSFind the definitions of the following terms.A. Force of impactB. Total VelocityC. Horizontal VelocityD. Vertical Velocity100 points Sandy bought a soft drink for 3 dollars and 8 candy bars. She spenta total of 35 dollars. How much did each candy bar cost ?H What does the simile, The dead lay as thick as sheep in a fold refer to?A)sheep that found their way onto the battlefield and were caught in the crossfireB)the thickness of the air after the battle C)the colonists who had been shot on the battlefieldD)the Redcoats who had been shot by the colonists The Kennedy Middle School cafeteria charges students $3 for 1 6 of a pizza. What is the cost per pizza? I need to know ASAP!!! Xavier is roller skating at 14 km/h and tosses a set of keys forward on the ground at 8 km/h. The speed of the keys relative to the ground is The clock ticks like a time bomb when an essay is due tomorrow Is this a simile or a metaphor?