All categories

2 years ago

F(x) = -4x2 + 4x – 4 Find f(3)

Mathematics

1 answer:

ValentinkaMS [17]2 years ago

5 0

F(3) occurs when x =3. So lets plug 3 into our equation.

$f(3) = -4(3)^2 + 4(3)-4\\f(3) = -4(9) + 12- 4\\f(3) = -36 + 12- 4\\f(3)= -28$

F(3) = -28

I hope this helps! :)

You might be interested in

Write the number in standard form? 7.1 x10^4=

fomenos

Is the x a multiplacation sign?

5 0

3 years ago

Find the volume of the figure below. 5 cm 11 cm 66 cm 82.5 cm 132 cm 165 cm

stealth61 [152]

Answer:

A) 66cm³

Step-by-step explanation:

Using the Pythagorean Theorem, the base of the triangle is 4. The area of a triangle is 1/2 base times height. Then you multiply times 11 to get the volume.

1/2(3)(4)(11)=66

5 0

2 years ago

What is 70% of 63 please answer my question

castortr0y [4]

44.1 would be your answer

5 0

2 years ago

Read 2 more answers

At a water park there is a slide that you really want to ride. In order to get to the top of the 29 foot slide you must first cl

murzikaleks [220]

Answer: 20 feet

Step-by-step explanation:

This represents a right angled triangle with the length of the slide being the hypotenuse, the height of the ladder being the height of the triangle and the distance from the base of the ladder being the length.

Solve with Pythagoras rule:

c² = a² + b²

c = hypotenuse

a= length

b = height

29² = 21² + b²

841 = 441 + b²

b² = 841 - 441

b² = 400

b = √400

b = 20 feet

8 0

2 years ago

Please please helpppp.

padilas [110]

There are 3 ways of solving a simultaneous problem, substitution method, elimination method and Gauss-Jordan method. I'm gonna use the substitution method since it's easier and i think it would suit your level more.

First let's try solving for y since it's easier to start with.

Firstly we have to find an equation for x:

$x-2y=2\\x-2y+2y=2+2y\\x=2+2y$