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2 years ago

I need help and I’m like really confused lol❤️

Mathematics

2 answers:

grandymaker [24]2 years ago

8 0

If I did this right it should be 8.

Ganezh [65]2 years ago

8 0

Hey there!!

4^x / 2^x

( 2 )^2x / 2^x

2^x = simplified

x = 3

2^3

= 8

Hope help!

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6.25t plus 8 = 12.5t plus 13

givi [52]

6.25t + 8 = 12.5t + 13

Subtract 8 from both sides

6.25t = 12.5t +5

Subtract 12.5t from both sides

-6.25t = 5

Divide -6.25 by both sides

t = 0.8

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3 years ago

13. The radius of Earth is approximately 6.4 x 100 m. Use the formula V = 4/3pr^3

romanna [79]

<u>We are given</u>

Radius of Earth; 6.4 x 100 meters = 640 meters

Clearly, the shape of the earth is a sphere. Thus, to determine the volume of the earth, we will use a formula that determines the volume of a sphere.

$\implies \text{Volume of sphere =} \ \dfrac{4\pi r^{3}}{3}$

When we substitute the radius in the formula, we get;

$\implies\text{Volume of sphere} = \dfrac{4\pi (640)^{3}}{3}$

$\implies\text{Volume of sphere} = \dfrac{4\pi (640)(640)(640)}{3}$

Take π as 3.14

$\implies\text{Volume of sphere} = \dfrac{4\pi (640)(640)(640)}{3}$

$\implies \text{Volume of sphere} = \dfrac{4(3.14)(640)(640)(640)}{3}$

Simplify the numerator;

$\implies \text{Volume of sphere} = \dfrac{4(3.14)(640)(640)(640)}{3}$

$\implies \text{Volume of sphere} = \dfrac{3292528640}{3}$

Divide the numerator by 3;

$\implies \text{Volume of sphere} = \dfrac{3292528640}{3}$

$\implies \text{Volume of sphere} = \boxed{1097509546.67 \ \text{m}^{3} } \ \ \ (\text{Estimated})$

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1 year ago

Mr king is going to paint his house. The paint costs 21.99$ a gallon or 93.65$ for a 5 gallon can. What would be the unit price

vampirchik [111]

Divide 93.65 by the 5 gallons.

93.65/5= 18.73

If me.king bought the larger container, the unit price would be $18.73 per gallon.

21.99-18.73= 3.26

The savings is $3.26 per gallon.

I hope this helps!
~kaikers

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yKpoI14uk [10]

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2 years ago

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