3 years ago

Pls help me It’s urgent‼️‼️

Mathematics

1 answer:

Otrada [13]3 years ago

7 0

Answer:

the answer is 3/10

I hope it may help you

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3% of a university's freshman class are majoring in Computer Science. If 231 students in the freshman class are Computer Science

White raven [17]

Your answer is 77!

All you really need to do is 231/3 since you need to find out how many students are in the freshman class.

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2 years ago

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Solve for x.

Ivahew [28]

ANSWER

$x=\frac{2-\sqrt{10}} {3}$

or

$x=\frac{\sqrt{10}+2} {3}$

We have

$3x^2-4x-2=0$

Since we cannot factor easily, we complete the square.

Adding 2 to both sides give,

$3x^2-4x=2$

Dividing through by 3 gives

$x^2-\frac{4}{3}x= \frac{2}{3}$

Adding $(-\frac{2}{3})^2$ to both sides gives

$x^2-\frac{4}{3}x+(-\frac{2}{3})^2= \frac{2}{3}+(-\frac{2}{3})^2$

The expression on the Left Hand side is a perfect square.

$(x-\frac{2}{3})^2= \frac{2}{3}+\frac{4}{9}$

$\Rightarrow (x-\frac{2}{3})^2= \frac{10}{9}$

$\Rightarrow (x-\frac{2}{3})=\pm \sqrt{\frac{10}{9}}$

$\Rightarrow (x)=\frac{2}{3} \pm {\frac{\sqrt{10}}{3}$

Splitting the plus or minus sign gives

$x=\frac{2- \sqrt{10}} {3}$

or

$x=\frac{\sqrt{10}+2} {3}$

3 0

3 years ago

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The sum of -2 and three times a number

algol13

The sum (addition) of -2 and 3 times (3 ·) a number (n)

-2 + 3n

6 0

3 years ago

Pleas help me if this is correct

Vesna [10]

Answer:

yes, i think it is