F(x)=2x^2+7 what is the value f(-2)

Answers

Answer 1

Answer:

f(x)=2(x+7/4)^2-49/8

Step-by-step explanation:


Related Questions

can anyone slove this question pls ​

Answers

we have: -10/4 = -2.5 ⇒ -2 > -2.5 > -3

ANSWER : -2 and -3

ok done. Thank to me :>

Draw the plot

Can someone plz help me with this

Answers

well, let's take a peek, hmmm the length is hmmm, how much is five times "x"? well 5 * x or just 5x, how about four more than that? well, just 5x + 4.

we know the width is hmmm how much is three times "x"? 3*x or just 3x, how about 2 less than that?  3x - 2.

Check the picture below.

Answer:

↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑↑^

72 is what percent of 36

Answers

So the 72 is 200% of 36

a shirt is on sale for 20% off the original price. if the original price is 25.00, what will be the sale price of the shirt

Answers

Answer:

$20 is the sale price

Step-by-step explanation:

20% of $25 is (0.2*25)=$5

$25 -$5 = $20

The point (3, 3) is in what quadrant? 2,1,3,4

Answers

Answer:

1

Step-by-step explanation:

(3,3) has a positive x value and a positive y value which means it is in the first quadrant

Answer each question and round your answer to the nearest whole number
A model power plant has a scale of 2 cm: 4 m. If the model power plant is 6 cm tall,
then how tall is the real power plant?
3 m
O 12 m
2 m
O 10 m

Answers

O 12 m is the answer hope your answers go good

please help me on this one thx i really need this one.

Answers

Answer:

6 meters

Step-by-step explanation:

Every 7 floors, it goes up by 22.4 meter intervals.

Let's count down,

the 7th floor would be 50.8 - 22.4, which is 28.4.

the 0th floor would be 28.4 - 22.4, which is 6.

Answer:

6

Step-by-step explanation:

Homework: Ch 5.2
Question 1, 5.2.3
HW Score: 25%, 2 of 8 points
O Points: 0 of 1
Save
A recipe for 14 banana-nut mutins calls for 1 cup of flour. The number of muffins that can be made varios directly with the amount of flour used. There are 2.2 cups of flour available. How many muffins can be made?

Answers

Answer:

  30 muffins

Step-by-step explanation:

2.2 cups of flour is 2.2 times the 1 cup quantity required for 14 muffins. Since muffins are proportional to flour, that means 2.2 times 14 muffins can be made. That is ...

  2.2×14 = 30.8

30 whole muffins can be made.

_____

Additional comment

If each muffin is made about 0.6% smaller than for the standard recipe, then 31 muffins could be made from 2.2 cups of flour. Usually, this change in size will not be noticeable.

Plz help me well mark brainliest only if correct!…

Answers

B. Is the answer. As it is the best simplest form

Helpppp I need help


If you can’t really see it,says if

m

Answers

MARK ME AS BRAINLEST PLEASE

…= 24 6/8

A complex shape with measurements 6 inches, 5 inches, 4 inches, 3 inches, 4 inches, 2 inches, 6 inches, 10 inches. What is the perimeter of the shape?

Answers

Answer: 40

Step-by-step explanation: do 6 add 5 add 4 add 3 add 4 add 2 add 6 add 10

Help. How to solve this equation.

Answers

Step-by-step explanation:

x-8/2 = x-5/5

5(x-8) = 2(x-5)

5x-40 = 2x-10

3x= 30

x = 10

Answer:

x = 10

Step-by-step explanation:

[tex]\frac{x-8}{2}[/tex] = [tex]\frac{x-5}{5}[/tex] ( cross- multiply )

5(x - 8) = 2(x - 5) ← distribute parenthesis on both sides

5x - 40 = 2x - 10 ( subtract 2x from both sides )

3x - 40 = - 10 ( add 40 to both sides )

3x = 30 ( divide both sides by 3 )

x = 10

I don’t understand this if someone can explain I got 13

Answers

Answer:

m = - 9

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

y = - 9x + 4 ← is in slope- intercept form

with slope m = - 9

Please help to answer the question below

Answers

Answer:

angle 2 and angle 3 are corresponding angles.

Answer:

2 and 3 corresponding, angle 2 and angle 3

Jane needs to memorize words on a vocabulary list for German class. She has memorized 8 of the words, which is one-fourth of the list. How many words
are on the list?

Answers

Answer:

x = 32 words

Step-by-step explanation:

Okay...let's get solving! :D Firstly, we

let the word list be x and convert the long paragraph into an equation that we can use.

one-fourth = 1/4

Memroized = 8 words

[tex]x * \frac{1}{4} = 8[/tex]

Thus, we solve the equation.

x = 32 words

ITS NOT C FOR ME ON EDGE ONLY A B OR D!!!

Which is a correct statement about common types of test questions?

There is little difference in how these types of questions should be approached.
Most can be approached by determining relationships between sets of ideas.
Most can be approached by determining whether an idea or fact is accurate.
Each type of question should be approached with a specific strategy.

Answers

Answer:

I don't really know ur question as I'm reading it it seems like a writing on how to approach and answer a question

Does anyone know the answer for this question? I really need it.

Answers

Your answer is 9 1/3

3 x 9 1/3
= 3/1 x 28/3
= 84/3
= 28

A lock consist of 4 dials, where each dial has 6 letters.what is the probability of guessing the right combination in one try?

Answers

Answer:

Step-by-step explanation:

The total number of choices is 6 * 6 * 6 * 6 = 1296

You have one chance to get it right

That's 1/1296 = 0.00077

Answer:

1/1296

Step-by-step explanation:

The probabilty of getting one of the dials correct is 1/6 because there are 6 letters on each dial. So if there are 4 dials, then the chance is multiplied by itself 4 times (1/6 * 1/6 *1/6 * 1/6). 1/6 * 1/6 *1/6 * 1/6 is equal to 1/1296.


[tex]2 \frac{2}{3} + 3 \frac{1}{3} + 1 \frac{2}{3} [/tex]
aaaaaaaaaadddddddd​

Answers

Solution, [tex]=2 \frac{2}{3} + 3 \frac{1}{3} + 1 \frac{2}{3} \\ = 2 + 3 + 1 + \frac{2}{3} + \frac{1}{3} + \frac{2}{3} \\ = 6 + \frac{2 + 1 + 2}{3} \\ = 6 + \frac{5}{3} \\ = 6 + 1 + \frac{2}{3} \\ 7 \frac{2}{3} [/tex]Alternatively,[tex] = 2 \frac{2}{3} + 3 \frac{1}{3} + 1 \frac{2}{3} \\ = \frac{8}{3} + \frac{10}{3} + \frac{5}{3} \\ = \frac{23}{3} \\ =7 \frac{2}{3} [/tex]

~nightmare5474~

[tex]2\frac{2}{3} + 3\frac{1}{3} + 1\frac{2}{3} = 7\frac{2}{3} [/tex]

let's convert each mixed fraction into improper fractions. Therefore,

What are Improper fractions:

Improper fractions are fractions that has the numerator bigger than the denominator.

[tex]2\frac{2}{3} = \frac{8}{3} [/tex]

[tex]3\frac{1}{3} = \frac{10}{3} [/tex]

[tex]1\frac{2}{3} = \frac{5}{3} [/tex]

Therefore,

[tex]\frac{8}{3} + \frac{10}{3} + \frac{5}{3} [/tex]

[tex] \frac{8}{3} + \frac{10}{3} + \frac{5}{3} = \frac{8 + 10 + 5}{3} = \frac{23}{3} [/tex]

Let's convert our answer back to mixed fractions

[tex]\frac{23}{3} = 7\frac{2}{3} [/tex]

learn more on fraction here:https://brainly.com/question/25412?referrer=searchResults

The number of potholes in any given 1 mile stretch of freeway pavement in Pennsylvania has a bell-shaped distribution. This distribution has a mean of 47 and a standard deviation of 7. Using the empirical rule, what is the approximate percentage of 1-mile long roadways with potholes numbering between 40 and 68?

Answers

Answer:   83.85%

This value is approximate.

==========================================================

Explanation:

Let's compute the z score for x = 40

z = (x-mu)/sigma

z = (40-47)/7

z = -1

We're exactly one standard deviation below the mean.

Repeat these steps for x = 68

z = (x-mu)/sigma

z = (68-47)/7

z = 3

This score is exactly three standard deviations above the mean.

Now refer to the Empirical Rule chart below. We'll add up the percentages that are between z = -1 and z = 3. This consists of the two pink regions (each 34%), the right blue region (13.5%) and the right green region (2.35%). These percentages are approximate.

34+34+13.5+2.35 = 83.85

Roughly 83.85% of the one-mile roadways have between 40 and 68 potholes.

Find two consecutive whole numbers that 60 lies between.

Answers

Answer: Benchmark numbers can be used to state that the square root of 60 is between 6 and 7.

Answer: 50 and 100

Step-by-step explanation:

( sorry if this is not what you meant ;-; )

3. The vertices of a rectangle are R(-5, -5), S(-1,-5), 7(-1, 1), and U(-5, 1). After translation,
R' is the point (-11, -11). Find the translation rule and coordinates of U'.
O(x, y) → (x – 6, y + 6); (-11, 7)
O(x, y) → (x – 6, y - 6); (-11, -5)
(x + 6, y-6); (1, -5)
O(x, y) → (x + 6, y + 6); (1,7)
O(x, y) ☺

Answers

- Answered :

U' = x - 6 , y + 6

U' = ( - 5 - 6 ) , ( 1 + 6 )

U' = ( - 11 ) , ( 7 )

U' = - 11 , 7

Need help again first answer gets brainliest

Answers

Answer:

vertical angles are supplementary

Answer:

C. Vertical angles are congruent

Step-by-step explanation:

Angles 1 and 4 are vertical angles.

According to definition of vertical angles, they are congruent.

Correct choice is C

The first three terms of a geometric sequence are as follows.
-10, -30, -90
Find the next two terms of this sequence.
Give exact values (not decimal approximations)

Answers

Answer:

-270,810

Step-by-step explanation:

c.r.  r=-30/-10=3

[tex]a_{n} =a_{1}r^{n-1} \\a_{4}=-10(3)^{4-1}\\=-10(3)^3=-10 \times 27=-270\\a_{5}=-10 \times(3)^{5-1}\\=10 \times3^4\\=-810[/tex]

need help solving this

Answers

Answer:

x ≈ 41.6°

Step-by-step explanation:

Using the tangent ratio in the right triangle

tan x = [tex]\frac{opposite}{adjacent}[/tex] = [tex]\frac{JK}{KL}[/tex] = [tex]\frac{80}{90}[/tex] = [tex]\frac{8}{9}[/tex] , then

x = [tex]tan^{-1}[/tex] ( [tex]\frac{8}{9}[/tex] ) ≈ 41.6° ( to the nearest tenth )

the equation p=1.5r graphed find price p, in dollars for r pounds of rice

Answers

Answer:

Hope that help you mark me brinilylist

Step-by-step explanation:

Given that 5 pounds of rice at a store cost $6.50.

Then 1 pound of rice at a store cost = $6.50/5= $1.3

So the equation for the cost can be written as:

C=1.3P just like we write equation y=mx

Now we have to graph the cost C, vs pounds of rice.

Variable for Pounds of rice is not given so let it be "P"

So let's make a table for the number of pounds (P) and cost (C)  we can graph the points from that table to get the final graph.

The Attached graph is the final graph.

A standard die is rolled find the probability that the number rolled is less than six express your answer as a fraction in the lowest terms or decimal number round three Decimal places if necessary

Answers

There are 6 numbers on a standard die and. 5 of the numbers are less than 6.

The probability would be 5/6

Solve the equation. -w/20=-2.5

Answers

[tex]\huge \bf༆ Answer ༄[/tex]

Let's solve ~

[tex] \sf{ - w \div 20 = - 2.5}[/tex]

[tex] \sf - w = - 2.5 \times 20[/tex]

[tex] \sf - w = - 50[/tex]

[tex] \sf{w = 50}[/tex]


(3x - 4x - 2 + 3x - 6 = 180
7x – 8 =

Answers

If we collect like terms of the first equation, we can simplify to

2x - 8 = 180

If we add 8 to both sides, we get

2x = 188

And that means x = 94

If we substitute this into the second equation, we get

7(94) - 8 = ?

7 x 94 is equal to 658

658 - 8 = 650

help me please please​

Answers

Answer:

17/18

Step-by-step explanation:

To add fractions, you need to have common denominators. (4/9)*(2/2)=8/18.

Now that they have common denominators, you can add 8 and 9 to get 17. So, the answer would be the second one, 17/18.

Answer:

r u just cheating ur way through a whole test lol

Step-by-step explanation:

its B or 17/18

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