3 years ago

Consider the function f(x)=8-3x^2 find the value of f(x) when x= 3

2 answers:

5 0

You start with f(x)=8-3(3)². Then, going in order of PEMDAS, you start with your exponent. So you have f(x)=8-3(9). Then multiplication, f(x)=8-27. Then your subtraction. f(x)=-19

Gelneren [198K]3 years ago

5 0

F(3)=8-3(3)^2= -19.....

You might be interested in

What is the average speed of a cheetah that sprints 100 miles in 4 seconds? How about if it sprints 50 miles in 2 seconds?

hichkok12 [17]

The cheetah is traveling at 25m per second.

3 0

2 years ago

Question 18

Svetlanka [38]

Answer:

Step-by-step explanation:

J and K are equal

8x - 23 = 6x + 11 Add 23 to both sides

8x = 6x + 11 + 23 Combine the right

8x = 6x + 34 Subtract 6x from both sides

8x - 6x = 34 Combine the left

2x = 34 Divide by 2

x = 34/2

x = 17

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

M and L are both supplementary to J and K respectively.

J = 8x - 23

J = 8*17 - 23

J = 136-23

J = 113

K = 113

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

M + 113 = 180

M = 180 - 113

M = 67

L = 67

5 0

2 years ago

-5/12+5/8 what is the answer to this

enot [183]

Answer:

5/24

Step-by-step explanation:

-5/12+5/8

-10/24+15/24

5/24

3 0

2 years ago

Marcus needs 108 inches of wood to make a frame. How many feet of wood does Marcus need for the frame?

ludmilkaskok [199]

9 inches, divide 108 by 12, because 12 inches makes a foot

3 0

2 years ago

Find the value of x if a linear function goes through the following points and has the following slope: (x,2), (-4,6), m=3

Anastasy [175]

The slope is defined as

$m=\dfrac{\Delta y}{\Delta x}=\dfrac{6-2}{-4-x}$

So, we have the follwing equation:

$\dfrac{6-2}{-4-x} = 3 \iff 4 = 3(-4-x) \\\iff 4=-12-3x \iff16=-3x \iff x = -\dfrac{16}{3}$

6 0

2 years ago

Read 2 more answers