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2 years ago

Negative 820 square root

1 answer:

7 0

A negative number doesn't have a square root...
only one number has to be negative not both...
and 820 doesn't have a perfect square root...
it would be 28.635...

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What is the value of the n in this equation n + 16 = 21

Verdich [7]

Answer:

n = 5

Step-by-step explanation:

Given

n + 16 = 21 ( isolate n by subtracting 16 from both sides )

n = 5

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3 years ago

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saul85 [17]

Answer:

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2 years ago

You throw a stone with a force of 55.1 N. It accelerates at 41.6 m/s2.

Mice21 [21]

Answer:

Mass = 1.3 Kilograms.

Step-by-step explanation:

Given the following data;

Force = 55.1 N

Acceleration = 41.6 m/s²

To find the mass of the stone in kg;

Newton's Second Law of Motion states that the acceleration of a physical object is directly proportional to the net force acting on the physical object and inversely proportional to its mass.

Mathematically, it is given by the formula;

Force = mass * acceleration

Substituting into the formula, we have;

55.1 = mass * 41.6

$Mass = \frac {55.1}{41.6}$

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2 years ago

One fourth of a number is 5. find the number

Tems11 [23]

Hope this helps. Please mark brainliest

Answer: 20

let the number be x

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x=5*4

x=20

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2 years ago

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Beginning one month after birth of their son, Noah, the Nelsons deposited $100 each month in an annuity for his college fund. Th

gizmo_the_mogwai [7]

Answer:

$100 * (1 + 6.8%/12)^216 + $100*(1+6.8%/12)^215 + ... + $100*(1+6.8%/12)^1

Now note that

x + x^2 + x^3 + ... + x^N = x ( 1 + x + ... + x^(N-1) )

= x ( (x^N -1)/(x-1) )

Here, x = 1+6.8%1 = 1.00566666 and N = 216, so

$100 * ( 1.00566666 ( 1.00566666^216 -1) / 0.00566666 )

= $ 42398.33

The total interest earned is $42,398 - $21,600 = $20,798

Step-by-step explanation:

The generic formula used in this compound interest calculator is V = P(1+r/n)^(nt)

V = the future value of the investment

P = the principal investment amount

r = the annual interest rate

n = the number of times that interest is compounded per year

t = the number of years the money is invested for

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3 years ago