3 years ago

Explain this please? I don't understand it

Mathematics

1 answer:

Andrej [43]3 years ago

8 0

Step 1 reason is GIVEN

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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 .

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3 years ago

a museum has a collection of 75 sculptures. of those sculptures 15 are from greece what percent of the sculptures are from greec

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Answer:

6.67% is as close as you can get

Step-by-step explanation:

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Toothy the crocodile wants to eat a delicious chicken. His mouth is open to an angle of 30 degrees.

damaskus [11]

Answer: 25°

Step-by-step explanation:

From the question, Toothy the crocodile wants to eat a delicious chicken and his mouth is open to an angle of 30 degrees but he needs to open his mouth to the angle of 55 degrees for the chicken to fit.

The additional angle that Toothy's mouth needs to be open so he can eat the chicken will be:

= 55° - 30°

= 25°

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3 years ago

What is the force, in N, when a pressure of 18 N/m2 is exerted on an area of 500 cm2?

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Answer: 1.6 N/cm^2

Step-by-step explanation:

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Answer:

Part 1: m = ( 2•3 ) + 3

Part 2: 9 miles

Step-by-step explanation:

Add all the miles together

2+2+2= 6+ 3 =9

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3 years ago