Mathematics High School

f(x) = - 4x ^ 2 + 4x - 4 Find f(3)
Need help

Answers

Answer 1

Answer: f(3) = - 28

Step-by-step explanation:

f(x) = - 4x² + 4x - 4

f(3) = - 4(3)² + 4(3) - 4            [We are solve for f(3), where x is equal to 3, we plug 3 for the x]

f(3) = - 36 + 12 - 4

f(3) = - 24 - 4

f(3) = - 28

Related Questions

How many diagonals can be drawn in the shape below?



24
40
18
20
?

Answers

Answer: It’s 20

Step-by-step explanation:

Plz mark me brainliest

Answer:

20 is the answer

Step-by-step explanation:

Find the area of both of these trapeziods using the formula (b1 + b2) • h ÷ 2.

Calculate the difference in areas of the two trapeziods.

Answers

Answer:

Area of trapezoid 1: 128

Area of trapezoid 2: 24

Step-by-step explanation:

Trapezoid 1:

(18 + 14)8/2

32*8/2

256/2

128

Trapezoid 2:

(9 + 7)3/2

16*3/2

48/2

24

Plzzz help me 10 min left​

Answers

Answer:

D

Step-by-step explanation:

The opposite of negative is positive therefore,

the opposite of -2 is positive 2.

2 is locaded at D.

two parallel lines are cut by a transversal. What is the measure <2.


A.100

B.180

C.90

D.80

Answers

Answer:

D) 80

Step-by-step explanation:

<7 = <2 b/c they're alternate exterior angles

Rachel is selling gift cards to raise money for her swim team. Each gift card costs $25.00. If c represents the number of gift cards she sells, and t represents the total amount collected, which equation models the amount of money she could raise?

Answers

Answer:

The equation that models the amount of money she could raise is written as:

t = 25c

Step-by-step explanation:

Rachel is selling gift cards to raise money for her swim team. Each gift card costs $25.00. If c represents the number of gift cards she sells, , which equation models the amount of money she could raise?

Let t represent the total amount collected

Each gift card costs $25.00.

If c represents the number of gift cards she sells

The equation that models the amount of money she could raise is written as:

t = $25 × c

t = 25c

A shark is swimming 25 feet below the surface of the water. It goes down another 12 feet. What is the new depth the shark is swimming at?

Answers

Answer:

37

Step-by-step explanation:

You add them to see the new depth

expand the expression (5x-y)^3 using the binomial theorem

Answers

The answer to your question is : 15x - 3y
if you expand the expression its

(5x-y)(5x-y)(5x-y)

which then simplified is

125x^3-75x^2y+15xy^2-y^3

how do you solve (7^-1)^-1 and 5^2 * 5^4 * 5^-3

Answers

Answer:

Step-by-step explanation:

exponents raised to a - power  is an inverse function probably not the right word

       a^-b    =  1/(a^b)     example       4^-2   = 1/(4^2)     =  1/16

so   (7^-1)^-1  is a double inverse which is back to the original number  7

      inverted 7 twice

      (7^-1)^-1     = (1/7)^-1     =  1/(1/7)     =   7     trust me or use your calculator

since the coeffients are the same  just add the powers...  some exponent rule

     5^2 * 5^4 * 5^-3   = 5^(2+4-3)   = 5³

here is it written out

5^2 * 5^4 * 5^-3    = 5²  ×   5^4   ×  5^-3    =   (5×5) × (5×5×5×5)  × (1/5×1/5×1/5)

    5×5 × 5× (5×5×5  × 1/5×1/5×1/5)           (5×5×5  × 1/5×1/5×1/5)  = 1

    5×5×5    = 5³

   so

The first equation is y = -2x + 8
and the second is
y = x - 4

Please show your work!!!

Answers

Answer:4

Step-by-step explanation:

y=-2x+8

y=x-4

Y equals the same thing so you can do equal values method

-2x+8=x-4

+2x      +2x

__________

8=3x-4

+4     +4

_______

12=3x

_____

3     3

x=4

the intercepting point is (4,0)
Explaination: Demos

Please help! Find the value of x. Round to the nearest tenth

Answers

Answer:

Step-by-step explanation:

tan Ф = opposite side  divided by the adjacent side    

tan Ф = opp/adj    in your problem Ф is x

tan x = 4/9        

x = arctan (4/9)      on your calculator arctan is might look like inverse tan

                       or you might have to use the 2nd (second) button and then tan

x = inverse tan (0.44444 repeating)     try it on your own calculator

 = 23.962488974578183                     rounds up to 24.0

 = 24.0    


Find the value of X ?
Plss FAST

Answers

Answer:  x   = √28

Step-by-step explanation:

a² + b² = c²         Use Pythagorean Theorem to find the missing length.  

x² + 6² = 8²      

x²+ 36 = 64         [Subtract 36 from both side]  

        x²= 28        

     √x² = √28     [solve the square root from both side]

       x   = √28  

HELP HELP HELP!! I WILL MARK YOU BRAINIEST!!!! HELP




Question 2 (2 points)
Based on the graph below, what is the carrying capacity for the species represented
by the ORANGE line

Answers

Answer:

6

Step-by-step explanation:

The orange line doesn't pass 6, it stays at 6.

LaToya rolled three number cubes during a probability experiment. She recorded whether she
rolled an even or odd number on each number cube. The outcomes of the first 50 trials are
Show in the table

Answers

Answer:

it should be G.

Step-by-step explanation:

Which of the following shapes is not a quadrilateral
Rhombus
Pentagon
Kite
Trapezoid

Answers

Answer:

Pentagon

Step-by-step explanation:

A quadrilateral must have four angles and four verticies. A pentagon does not have 4 verticies, but 5.

Answer:

its a pentagon-

oOooOOOooOOOooh gOooOOooOOnn

Step-by-step explanation:

HELP!! I NEED HELP ASAP

Answers

75 Shield Darters.

Explanation:
2+2+2+3+4+4+4+4+6+6+7+7+7+8+9 = 75

explain to a 7th grader how to find the x intercept and the y-intercept on a graph ​

Answers

X intercept: there the line crosses the axis and the other ways round for the y intercept

The Slope-Intercept form of the equation of a line is: y=mx + b
where m=slope (often called "rise over run")
b = y-intercept (the point on the y-axis when x=0)

Given a slope and a y-intercept point [ (0,b) ],
(1) plot the point (0,b)
On the y-axis (x=0), find the point b.

(2) Now, do the "rise over run" exercise. For a slope of m, you go up m units on the y-axis for 1 unit of increase on the x-axis. For example, if m=4 the next point after (0,b) would be (1,b+4). Now, note that a negative m (a negative slope) means that the y-values decrease as the x-values increase.

Two points determine a line. "Connect the dots" and extend in both directions.

What is 12x^2 + 53x + 20 written as a product?

Answers

Answer:

(12x+5)(x+4)

Step-by-step explanation:

 

The set of ordered pairs {(-2, 4), (x, 1), (1, 3), (2, 4)} is a function. Which is a possible value for x?
A. -2 B. 1 C. 2 D.3

Answers

Answer:

1

Step-by-step explanation:

ILL GOVE BRAINLIEST!! PLEASE HELP W THIS

Answers

No it’s not proportional the formula for speed is distance divided by time if you calculate it for each one you get 65,60,65 etc

A square has a perimeter of 25 inches. Find the length of a side.

Answers

Answer: The area is a = 6.25

Step-by-step explanation: Using formula P = 4 a

Solving for a

a = [tex]\frac{p}{4}[/tex]  = [tex]\frac{25}{4}[/tex] = 6.25 in

help QUICKLY please ill mark brainliest

Answers

Answer:

D but I'm not 100 percent sure

Step-by-step explanation:

so sorry if I'm wrong

Answer:

the height of NBA basketball players, in meters

Step-by-step explanation:

I believe we can be pretty sure that here's no NBA players of heights 1.1m or 3.9m - the second height would be way over the height of the tallest man on earth

Diego is asked to solve 3x−8=4(x+5). What do you recommend he does to each side first?

Answers

Answer:

He would factor out 4(x+5)

Step-by-step explanation:

You can't do much until the 4(x+5) is factored out.

Once it is then it'd be 3x-8=4x+20

Then you subtract 3x on both sides and subtract 20 on both sides.

You'd be left with -28=x

Hope this helps

The two numbers that multiply to 11 and add to -12 are

Answers

Answer:

-11 and -1

Step-by-step explanation:

These are the two numbers that multiply to 11 and add to -12.

Answer: 11x1 is 11. 11- 13 = -12

Step-by-step explanation:

Please Help!!!!! You have twice as many nickels as pennies. you have $1.10. how many of each coin do you have?
Could you show your work like the image above

Answers

Since we have twice as many nickels as pennies and $1.10. In quarters it is 4.5

Write and complete this proportion three is to four as nine is to what number

Answers

Answer:

10

??

Step-by-step explanation:

the proportion is 9:12 I think

yoooooo guys any chance anyone could help me with this??? :))

Answers

Answer: x is 4 y is 6 for the translation

Step-by-step explanation:

translation is up down left or right on the grid. left or right is x up or down is y.

Answer: x is 4 y is 6 for the translation

Step-by-step explanation:

translation is up down left or right on the grid. left or right is x up or down is y.

Help me with this!!!

Answers

300. Because the distance is still 100 in between.

If mAPW = 20°, then the measure of WPZ is

Answers

Answer:

The answer to the question is 20

Answer:angle WPZ = 70°

because angle ZPA is 90°.

So,

It's 90-20 = 70°.

please help thank you

Answers

Answer:

n = 18

Step-by-step explanation:

(2n) and (n + 18) are vertically opposite angles and are congruent, then

2n = n + 18 ( subtract n from both sides )

n = 18

Claire's backyard is in the shape of a rectangle and has a length of 19.5 feet. It cost her $945 to fence in the yard. If fencing costs $15 per foot, what is the width of Claire's backyard?
​

Answers

Answer:

Step-by-step explanation:

You need to know the formula for the perimeter of a rectangle. We won't use it right away, but it is pertinent information.

P = 2 ( l + w )

Now, we know that the fencing costs $15.00 per foot, and that the length is 19.50 feet.

We first need to find the price of one "length" side of the fence.

To do this, multiply 19.50 by 15.00

19.50 x 15.00 = 292.5

Next, we look at the perimeter equation to see what we can plug in where.

P = 2 ( l + w )

We can put in the total price of the fencing for the yard as P, and the amount of one length side of the fence as l.

945.00 = 2 ( 292.5 + w )

And now, we simply solve for w.

945.00 ÷ 2 = ( 2 ( 292.5 + w ) ) ÷ 2

472.5 = 292.5 + w

472.5 - 292.5 = 292.5 + w - 292.5

w = 180

It costs $180 for one "width" side of the fence.

To find out how many feet that is, we do the opposite of what we did with the length. Instead of multiplying by $15.00, we divide by $15.00

$180.00 ÷ $15.00 = 12

The width of Claire's backyard is 12 feet.

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