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3 years ago

The mean age of 5 people in a room is 28 years.

Mathematics

1 answer:

lina2011 [118]3 years ago

4 0

Answer:

174

Step-by-step explanation:

You should look at the mean and do this:

5*28 so now you know all the ages which is 140 now you do 140/29 and you get 4.8....... so you can see that the answer is 174

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VARVARA [1.3K]

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3 years ago

How much would it cost to buy a piece of candy for 50 cents plus tax

gtnhenbr [62]

Answer:

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2 years ago

Jackson used the process of completing the square to solve the equation 2x2−12x=−6.

Nikolay [14]

Answer:

$x=3-\sqrt{6},x=3+\sqrt{6}$

Step-by-step explanation:

we are given equation as

$2x^2-12x=-6$

Since, we have to solve it by using complete square

so, firstly we will complete square

and then we can solve for x

step-1:

Factor 2 from both sides

$2(x^2-6x)=-3\times 2$

step-2:

Simplify it

$x^2-6x=-3$

step-3:

Add both sides 3^2

$x^2-6x+3^2=-3+3^2$

now, we can complete square

$(x-3)^2=6$

step-4:

Take sqrt both sides

$(x-3)=-\sqrt{6},(x-3)=\sqrt{6}$

step-5:

Add both sides by 3

we get

$x=3-\sqrt{6},x=3+\sqrt{6}$

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3 years ago

A polynomial is to be constructed that will touch the x axis at most 8 times. What is the minimum degree of the polynomial?

slamgirl [31]

Every degree is a touching point since each root factor is an x intercept

therefor the answer is 8th degree

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3 years ago