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3 years ago

PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!! What is (f+g)(x) ?

Mathematics

2 answers:

Nimfa-mama [501]3 years ago

5 0

Answer: (D) 8x² - x - 4

Step-by-step explanation:

f(x) = 5x² - 2x

+ g(x) = 3x² + x - 4

(f+g)(x)= 8x² - x - 4

True [87]3 years ago

4 0

Answer:

Its option D

Step-by-step explanation:

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

=8x^2-x-4

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There are 24 people at a party and each person eats 1/8 of a cake. There was not any cake leftover. How many cakes were at the p

sasho [114]

Answer: 3 cakes were at the party

Step-by-step explanation:

Multiply 1/8*24 to find the exact number of cakes that were at the party

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3 years ago

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A farmer has 220 bushels of wheat to sell it has roadside stand he sells an average of 14 and three-quarter bushels each day rep

REY [17]

Answer:

Total change in Sales of Bushels =116 $\frac{3}{4}$

Step-by-step explanation:

Total Bushels of Wheat= 220

Average Sale= $14*\frac{3}{4}$ per day

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3 years ago

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Mariana [72]

Answer:

////

Step-by-step explanation:

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3 years ago

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What are the values of x ?

Vera_Pavlovna [14]

Answer:

Step-by-step explanation:

since they are parallel then 2x+6=106

so subtract 6 from each side so it's 2x = 100

then divide each since by 2

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3 years ago

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A standard piece of paper is 0.05 mm thick. Let's imagine taking a piece of paper and folding the paper in half multiple times.

tatyana61 [14]

Answer:

(a) $g(n)=0.05\cdot 2^n$

(b) $g^{-1}(n)=\log_{2}20g(n)$

Step-by-step explanation:

Part A

The paper's thickness = 0.05mm

When the paper is folded, its width doubles (increases by 100%).

The thickness of the paper grows exponentially and can be modeled by the function:

$g(n)=0.05(1+100\%)^n\\\\g(n)=0.05\cdot 2^n$

Part B

$g(n)=0.05\cdot 2^n\\2^n=\dfrac{g(n)}{0.05}\\ 2^n=20g(n)\\$Changing to logarithm form, we have:\\\log_{2}20g(n)=n\\$Therefore:\\g^{-1}(n)=\log_{2}20g(n)$

Part C

If the thickness of the paper, g(n)=384,472,300,000 mm

Then:

$g^{-1}(n)=\log_{2}20g(n)\\g^{-1}(n)=\log_{2}20\times 384,472,300,000\\=\dfrac{\log 20\times 384,472,300,000}{\log 2} \\g^{-1}(n)=42.8 \approx 43\\n=43$

You must fold the paper 43 times to make the folded paper have a thickness that is the same as the distance from the earth to the moon.

3 0

3 years ago