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3 years ago

What is 13 divided by 1/4? Explain how you got your answer.

Mathematics

2 answers:

NeX [460]3 years ago

8 0

Answer:

Step-by-step explanation:

13 divide 1/4 is the equivilent to 13 x 4

vichka [17]3 years ago

7 0

Answer:

Step-by-step explanation:

13/(1/4)

when a fraction is in the denominator you inverse the fraction and multiple by the numerator

so it would be 13*(4/1) = 13*4 = 52

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The equation h(t)= -16t^2+864t models the path of a rocket shot into the air. After how many seconds does the rocket hit the gro

Vika [28.1K]

Answer:

t = 54 seconds

Step-by-step explanation:

The equation that models the path of a rocket into the air is given by :

$h(t)= -16t^2+864t$

It is required to find the time after which the rocket will hit the ground. When it hits the ground, the height of the rocket will becomes zero. It means,

h(t) = 0

i.e.

$-16t^2+864t=0\\\\16t(-t+54)=0\\\\16t=0, -t+54=0\\\\t=0\ and\ t=54\ s$

It means after 54 seconds, the rocket will hit the ground.

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3 years ago

A circle has a diameter of 57 in

goldenfox [79]

Answer:

89.49 if is the entire circle and 44.745 if is a semi circle

Step-by-step explanation:

57 / 2 = 28.5 this is the ratio

28.5 * 3.14 = 89.49

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3 years ago

Please help, this is from ANNOYING Khan Academy.

GalinKa [24]

Answer:

-20

Step-by-step explanation:

5 0

3 years ago

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A blender runs at 120 volts at 4.16 amps. Calculate power

andrey2020 [161]

Answer:

P = 499.2 Watt

Step-by-step explanation:

$p = iv \\ p = 4.16 \times 120 \\ p = 499.2 \: watt$

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3 years ago

Find the simple interest on a $340 loan at a 15% annual interest rate for 1<br> year

Crank

Answer:

$51.

Step-by-step explanation:

Interest I = PRT/100 where P = amount of the loan , R = rate and T = the times in years.

I = 340 * 15 * 1 / 100

= 5100/100

= $51.

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3 years ago

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