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Effectus [21]
3 years ago
12

I NEED HELP IN QUESTION 8 PLEASE !

Mathematics
1 answer:
Lyrx [107]3 years ago
8 0

Answer:

Step-by-step explanation:

line segment  JM

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The answer please. (F-g)(-3)
ad-work [718]
There are two ways to do this
Method 1:

Find (f-g)(x) first
(f-g)(x) = f(x) - g(x)
(f-g)(x) = (5x^2+3) - (-2x+4)
(f-g)(x) = 5x^2+3+2x-4
(f-g)(x) = 5x^2+2x-1

Then plug in x = -3
(f-g)(-3) = 5(-3)^2+2(-3)-1
(f-g)(-3) = 5(9)+2(-3)-1
(f-g)(-3) = 45-6-1
(f-g)(-3) = 39-1
(f-g)(-3) = 38

-----------------------------------------

Method 2:

Find f(-3)
f(x) = 5x^2+3
f(-3) = 5(-3)^2+3
f(-3) = 5(9)+3
f(-3) = 45+3
f(-3) = 48

Find g(-3)
g(x) = -2x+4
g(-3) = -2(-3)+4
g(-3) = 6+4
g(-3) = 10

Subtract the two results
(f-g)(-3) = f(-3) - g(-3)
(f-g)(-3) = 48 - 10
(f-g)(-3) = 38

-----------------------------------------

Whichever method you pick, the answer is: 38

4 0
3 years ago
Find the surface area of the pyramid round to the nearest tenth choose the correct unit
sineoko [7]

slant height(h) = 16.3ft

Base side = 20ft

\text{Area of pyramid=}\frac{1}{2\text{ }}\times perimeterofbase\text{ x slant height}

Perimeter of base = 4(base side) = 4(20) = 80ft

\begin{gathered} \text{Area of pyramid = }\frac{1}{2}\times80\times16.3 \\ \text{Area = }652ft^2 \end{gathered}

7 0
1 year ago
I WILL MAKE YOU BRAINLIEST
34kurt

Answer:

40

Step-by-step explanation:

32/4=8

8 is 2x 4 so multiply 5x2=10

now multiply 10x4

7 0
3 years ago
Read 2 more answers
Jack's mother gave him 50 chocolates to give to his friends at his birthday party. He gave 3 chocolates to each of his friends a
iragen [17]
Number of friends - x

50-3x=2
-3x=-48
3x=48
x=16

Jack has 16 friends.
3 0
3 years ago
Read 2 more answers
Solve for h v=pie*r^2h
Elanso [62]

Answer:

v=πr^2h

v/πr^2=h

Step-by-step explanation:

4 0
3 years ago
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