3 years ago

What is the decimal representation of 80%?

1 answer:

8 0

so when you are trying to find the decimal of a % you have to count 2 places to the left of the decimal so in this case if 80 % had a decimal after 0 the decimal would be 0.80 therefore the answer is B

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How is this equation completed? I cannot find any examples in the book.

djverab [1.8K]

Answer: Option D

$t_{max} =19\ s$

Step-by-step explanation:

Note that the projectile height as a function of time is given by the quadratic equation

$h = -12t ^ 2 + 456t$

To find the maximum height of the projectile we must find the maximum value of the quadratic function.

By definition the maximum value of a quadratic equation of the form

$at ^ 2 + bt + c$ is located on the vertex of the parabola:

$t_{max}= -\frac{b}{2a}$

Where $a$

In this case the equation is: $h = -12t ^ 2 + 456t$

Then

$a=-12\\b=456\\c=0$

So:

$t_{max} = -\frac{456}{2*(-12)}$

$t_{max} =19\ s$

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3 years ago

The mean of 15 numbers is y.If each of the number is increased by 30, find the increase of the new mean in terms of y.The answer

dusya [7]

Answer:

y+30

Step-by-step explanation:

the sum of the numbers is 15y

the new sum after increase each number by 30 is 15y+450

the new mean 15y+450/15

= y+30

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3 years ago

These map tests give me anxiety or however you spell it

Vesnalui [34]

Answer:

Im sorry i dont know what im supposed to be answering

step-by-step explanation:

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3 years ago

Solve the inequality 16 – 7a ≥ –33.<br><br> i will mark you brainliest!

steposvetlana [31]

16-7a>-33

-16 -16

-7a>-49

A<7

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3 years ago

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If H is obtuse, then HG ___ GJ.

Karolina [17]

That would be HG < GJ

7 0

3 years ago

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