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3 years ago

When 7 is subtracted from a number for times, the result is three. what is the number?

Mathematics

1 answer:

Minchanka [31]3 years ago

8 0

Answer:

YOU JUST SID IT

Step-by-step explanation:

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What is the solution to this equation 1/2n^2+18=0

ololo11 [35]

Answer:

n = ±6 .

Step-by-step explanation:

A quadratic equation is given to us and we need to find out the solution of the given equation . The given equation is ,

$\rm\implies -\dfrac{1}{2}n^2+18=0$

Subtracting 18 both sides ,

$\rm\implies -\dfrac{1}{2}n^2 = -18$

Multiplying both sides by -2 ,

$\rm\implies -2\times\dfrac{1}{2}n^2 = -2\times -18$

On simplyfing , we get ,

$\rm\implies n^2= 36$

Putting squareroot both sides ,

$\rm\implies n= \sqrt{36}$

This equals to ,

$\rm\implies \boxed{\quad\blue{\rm n =\pm 6 }}$

Hence the value of n is ±6 .

6 0

3 years ago

Please could someone explain this to me?

qwelly [4]

Ok so A is the same as the square root of 4b+c but all of the numbers and the answer have to be prime numbers

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2 years ago

Which of the following is not an integer? 0 0.54 -45 17

mart [117]

Decimals are not an integer, so that’s making 0.54 not an integer

3 0

2 years ago

Read 2 more answers

Help me find the area please

Katena32 [7]

Answer:

I'm not a hundred percent sure how to answer this one, because you need the height to solve but the other two tick marks would also be twenty because all of the sides are equal to one another.

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2 years ago

PLEASE HELP TIMED

kogti [31]

Jjbivhvu this need a bit more

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2 years ago