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3 years ago

Will mark a Brainiest

Mathematics

1 answer:

Xelga [282]3 years ago

6 0

Answer:

37.5%

Step-by-step explanation:

you have 8 slices that should represent 100% so 100 divide 8 is 12.5

12.5 multiply by the three red sections you have then you get 37.5%

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Choose all of the zeroes of f(x).

Korolek [52]

Answer:

yes

Step-by-step explanation:

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3 years ago

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You deposit $400 into an account that pays 2% annual interest compounded quarterly.

Ad libitum [116K]

Part A
The exponential model that describes the situation
The formula is
Y (x)=400 (1+0.02/4)^4x
Y (x)=400 (1+0.005)^4x
Y (x)=400 (1.005)^4x
Where x is the number of years

Part B
The value of the account after 5 years
Y (5)=400×(1.005)^(4×5)
Y (5)=441.96

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3 years ago

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450 is 75% of what number

Sergeu [11.5K]

•75% = 0.75
•450 ÷ 0.75 = 600
•450 is 75% 0f 600
There are the steps that I used to get that 450 is 75% 0f 600

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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.

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3 years ago

Please help me!

Tomtit [17]

This is how it would work to find answer

You divide 225 by 45 and the answer you would get is 5 so

It will take 5h for the train to travel

hope this helps

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3 years ago

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