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3 years ago

F(x) = 4x+8 g(x) = x+3, Find f(x)*g(x)

Mathematics

2 answers:

USPshnik [31]3 years ago

7 0

Answer:

4x^2+20x+24

Step-by-step explanation:

(4x+8)(x+3)=4x^2+8x+12x+24=4x^2+20x+24

klemol [59]3 years ago

5 0

Answer:

Step-by-step explanation:

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If (x + 2) is a factor of x3 − 6x2 + kx + 10, k =

mafiozo [28]

Hello:
let : f(x) = x3 − 6x2 + kx + 10
If (x + 2) is a factor of x3 − 6x2 + kx + 10 : f(-2) = 0
(-2)^3-6(-2)² +k(-2)+10=0
-8 -24-2k +10 = 0
-2k =8+24-10
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3 years ago

Find the surface area of the rectangular and triangular prisms

harina [27]

Is there a picture to this????

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3 years ago

Given ƒ(x) = 9x + 54, find x when ƒ(x) = 18. A)−6 B)−4 C)3 D)8

Katen [24]

Answer:

B. -4

Step-by-step explanation:

We want to find x such that f(x)=18.

We need to therefore solve 9x+54=18 forx.

9x+54=18

Divide both sides by 9:

(9x+54)/9=18/9

9x/9+54/9=18/9

Simplify:

x+6=2

Subtract 6 on both sides:

x=2-6

Simplify

x=-4.

So f(-4) should have value 18.

Let's check.

f(x)=9x+54

f(-4)=9(-4)+54

f(-4)=-36+54

f(-4)=18

So the answer is B.

7 0

3 years ago

Read 2 more answers

the area of a window is 40 square feet. the length is the square root of 20 feet. what is the width of the window

Irina18 [472]

----------------------------------------------------
Given information
----------------------------------------------------
Area = 40ft²
Length = √20 ft

----------------------------------------------------
Formula
----------------------------------------------------
Area = Length x Width

----------------------------------------------------
Find Width
----------------------------------------------------
40 = √20 x width
Width = 40 ÷ √20
Width = 40 ÷ 2√5
Width = 20 ÷ √5
$Width = \frac{20}{ \sqrt{5} }$

$Answer: \boxed {Width = \frac{20}{ \sqrt{5} }}$

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3 years ago

Question 4 please help me and show working out

zimovet [89]

B 12:3 = 4-1=3 C 10- 7=3 And A 2+15x=x=15-2=13

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2 years ago