What is the value of f(-2) when f(x) = 2x2−3x+28

Answers

Answer 1

Answer:

f(x)=x−4x2−3x−28 f ( x ) = x - 4 x 2 - 3 x - 2 8 .

Step-by-step explanation:

Answer 2

Answer:

f(-2) = 42

Step-by-step explanation:

Given function:

f(x) = 2x²−3x + 28

Find f(x) when x = -2

f(-2) = 2(-2)² - 3(-2) + 28 = 2(4) + 6 + 28 = 42

Related Questions

Three (3) consecutive integers is such that the largest is x. Write an expression
for the smallest.

Answers

Answer:

Consider 3 consecutive integers: (smallest) x, x+1 and x+2 (largest)

Step-by-step explanation:

Five times the smallest means 5x

Sum of the largest and five times the smallest means x+2+5x

This sum is -244 means x+2+5x=-244

Solve this equation

x+2+5x=-244

6x+2=-244

6x=-244-2

6x=-246

x=-41

So, smallest number is -41, second is -40 and largest is -39

You're answer is -39+5(-41)=244

Mrs. Zimmerman’s students build the first letter of their names out of wood. Holly builds an H using rectangles with the dimensions shown.

How many square inches of wood does Holly use to create the letter H?

Answer Choices: A, 44 in.² B, 60 in.² C, 80 in.² D, 120 in.²

Answers

Answer:

Answer: 80in^2

Step-by-step explanation:

i got it right, so its right...

find the length of the unknown side​

Answers

if leg a is the missing side, then transform the equation to the form when a is on one side, and take a square root: a = √(c² - b²)
if leg b is unknown, then. b = √(c² - a²)
for hypotenuse c missing, the formula is. c = √(a² + b²)

How many times can you fit 8 hours and 24 hours?

Answers

Answer:

in what? if you meant 8 hours in 24 hours than 3 times

Step-by-step explanation:

Answer:

The answer is 3 times.

Step-by-step explanation:

[tex]since \: 8 \times 3 =24

then \: you \: can \: fit \: 8 \: hours \: 3 \: times \: in \: 24 \: hours.[/tex]

Type the missing number in this sequence:

13, 5, , -11, -19

Answers

it would be -3

it’s subtracting 8 each time so the missing number after positive five has to be -3 as 5-8= -3 and -3-8=-11

Jayce bought 5 bath towels and returned 2 hand towels. His sister Jayna bought 3 bath

towels and returned 4 hand towels. Jayce paid a total of $124 and Jayna paid a total of

5b - 2h = 124

$24. The system of equations

models this situation, where b is the

3b - 4h = 24

price of a bath towel and h is the price of a hand towel. How much does each kind of

towel cost?

Answers

Answer:

Bath towels = $32

Hand towels = $18

Step-by-step explanation:

Given:

5b - 2h = 124 (1)

3b - 4h = 24 (2)

Multiply (1) by 2 to eliminate h

10b - 4h = 228 (3)

3b - 4h = 24 (2)

Subtract (2) from (3)

10b - 3b = 248 - 24

7b = 224

b = 224 / 7

b = 32

Substitute b = 32 into (2)

3b - 4h = 24

3(32) - 4h = 24

96 - 4h = 24

-4h = 24 - 96

-4h = -72

h = -72 / -4

= 18

h = 18

Bath towels = $32

Hand towels = $18


What is the y-intercept of y=-4/3x+4?
A) (0,4)
B) (4,0)
C) (0.-4)
D) (-4,0)



PLEASE HELP ME

Answers

Answer:

A. (0,4)

Step-by-step explanation:

You can calculate the y intercept when x = 0.

Substitute 0 for x:

y = (-4/3)(0) + 4

= 0 + 4

= 4

solve each system of equation by graphing

3x-5y=15
y=2x+4

Answers

brown skin girl brown skin just like pearls

Answer:

Solution: (-5,-6)

Graph:

What is the equation in slope-intercept form of the line that crosses the y-axis at 6 and is perpendicular to the line represented by y= (-4/9)x+5?​

Answers

Answer:

y=(9/4)x+6

Step-by-step explanation:

If it crosses at 6 then it will be +6.  A perpendicular line has a slope that is the opposite reciprocal of your current slope.

Let f(x) = x^2 and g(x) = x - 5 Find (f o g)(-2)

Answers

Answer:

[tex]Solution,\\f(x) = x^{2}\\g(x) = x-5\\Now, \\fog(x) = f[g(x)] = f(x-5) = (x-5)^{2} \\Put~x=-2,\\fog(-2) = (-2-5)^{2} = (-7)^{2} = 49[/tex]

A dump truck can hold 2 tons of gravel. The pay loader loading the truck puts 750 pounds of gravel in the truck at one time.


How many loads does the pay loader need to dump in the truck before it is full?

Answers

Answer:

6

Step-by-step explanation:

what’s the answer????????

Answers

5 to the power of 0 is always 1.

5 to the negative 3 is written as 1/ fifth to the negative power

how do you find the axis of symmetry?​

Answers

Answer:

The axis of symmetry always passes through the vertex of the parabola . The x -coordinate of the vertex is the equation of the axis of symmetry of the parabola. For a quadratic function in standard form, y=ax2+bx+c , the axis of symmetry is a vertical line x=−b2a .

Step-by-step explanation:

Answer:

x=-b/2a

Step-by-step explanation:

axis of symmetry is the line that across the vertex from a parabola(ax^2+bx+c).

The expression to find vertex is -b/2a

Thus, x=-b/2a is a vertical line that across the vertex aka the axis of symmetry.

Help me please!!


Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar.

The measurement of angle B is _______
The measurement of angle A is _______
The measurement of angle C is _______

Answers

Answer:

The measurement of angle B is 135°

The measurement of angle A is 60°

The measurement of angle C is 75°

Step-by-step explanation:

Angle A is the same value of 60, Angle B is pretty much just 180 - 45, and so is angle C.

What is 9% of 50? Pls.

Answers

Answer:

4.5

Step-by-step explanation:

Write the following expression in exponential form: (2 points) 4.5 × 4.5 × 4.5 × 4.5 × 4.5 × 4.5 × 4.5

Answers

Answer:

The answer is [tex]4.5^7[/tex]

Step-by-step explanation:

This is because there are 7 copies of the same number and that means you have to put 7 at the exponential part of it. Then you have to put the original number under the exponential spot. Therefore, the answer is [tex]4.5^7[/tex].

Greatest common factor: 8pqr—9pst

Answers

The greatest common factor for 8 is 4 and for 9 it’s 3

A denim shirt at a certain factory requires 25 yards of material How many shirts can be made from 775 yards of material?
Ata certain factory | denim shirts can be made from 775 yards of material
Diyane werType an integer proper traction or mixed number)

Answers

Answer:

31

Step-by-step explanation:

775 yards divided by 25 is equal to 31 meaning 25 can go into 775 31 times

5(6-3)=6+3 show ur work

Answers

Answer:

No Solution

Step-by-step explanation:

Simplify  6−3  to  3.

5×3=6+3

Simplify 5×3  to 15.

15=6+3

Simplify  6+3 to 9.

15=9

Since 15=9 is false, there is no solution.

No Solution

We have to use PEMDAS since there is parentheses, so we start with 6-3, which equals 3, then we can multiply that by 5, to get 15. Now the right side, that’s just simple addition, 6+3=9, so final answer is 15=9. Would appreciate brainliest!

If 6x+3y=−1 and
5x+y=8 are true equations, what would be the value of
−x−2y?

Answers

Answer:   9

x = 2.778

y = -5.889

-x -2y

= -2.778 - 2(-5.889)

= 9

35% of a number is what fraction of that number​

Answers

Answer: 7/20

Step-by-step explanation:

Answer:

7/20

Step-by-step explanation:

The blue dot is at what value on the number line?

Answers

The blue dot is at 4

Please help it’s either C or A I’m pretty sure! Please help :(

Answers

I can’t see the photo send photo and maybe I can help

HELP ME PLEASEEEE!!!!!!!

Answers

Answer: Pattern B

Step-by-step explanation: A quadratic relationship involves x squared. Pattern B has the relationship x squared + 1 between the step number and the number of dots

Help me out I’m trying to sleep :(

Answers

Answer:

It’s a

Step-by-step explanation:

goodnight go sleep

5
Sarah want to buy shrimp at $10.99 a pound. How many pound can she
buy for $25? *Round to the nearest tenth, one decimal place

Answers

Answer:

2.3 (or 2.293)

Step-by-step explanation:

25/10.99

How many terms are in the simplified expression?
22x3 + 14x2 + 3x + 7x – 12x2 + 5x

A. 3
B. 5
C. 4
D. 6

Answers

THE answer is A.3

Step-by-step explanation:

on the picture

If it's helpful ❤❤❤

THANK YOU

I NEED HELP RIGHT NOW PLEASE!!
solve 30-5x=4 for x​

Answers

Answer:

x=5.2

Step-by-step explanation:

IN decimal form x=5.2 in mixed number form x=5 1/5

Answer:

x=5.2

Step-by-step explanation:

30-5x=4

First, subtract 30 from both sides of the equation

-5x=-26

Then divide by -5 to both sides of the equation

x=5.2

Checking your answer

30-5(5.2)30-264

The granola Summer buys used to cost $6.00 per pound, but it has been marked up 15%. Suppose Summer buys 3.5 pounds of granola. How much more does it cost at the new price than at the old price?

Answers

New price = 24.15
Old price = 21

Answer:

the answer would be 3.15

Step-by-step explanation:

The sum is 2 One number is twice the other one.​

Answers

Answer:

The smaller number is 0.6666... repeating, and the larger number is 1.3333... repeating.

Step-by-step explanation:

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