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3 years ago

Is -14 an integer or not

2 answers:

3 0

An integer is a whole number (not a fraction) that can be positive, negative, or zero. Therefore, the numbers 10, 0, -25, and 5,148 are all integers. When two integers are added, subtracted, or multiplied, the result is also an integer.

solong [7]3 years ago

3 0

Yes it is an integer

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What is another way to write this number 300+70+5/10+8/100

Kobotan [32]

Hello!

Your answer is 370 $\frac{29}{50}$

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3 years ago

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Which function below has the smallest slope?. A Graph with a line going through -5 on the Y Axis and Postive 2 and a half on the

Allushta [10]

<span>The three equations can be written as 1) y = 2x - 5 ; 2) y = 2x - 3 and ;3) y = 2x + 5. Now, the slope can be found by slop intercept form of linear equation i.e. y = mx+b where m is the slope. From the above equations, we can see that all the the three have the same slope i.e. m = 2.</span>

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3 years ago

Find the root 2x2 + x-4 = 0

Aneli [31]

Answer:4

Step-by-step explanation:

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4 years ago

What is 4/5 divided by 10

Vsevolod [243]

0.08 is the answer to your question. If you have a calculator use it.

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3 years ago

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Angle x is a third quadrant angle such that cos x = -1/5.

Yuki888 [10]

Starting from the formula

$\cos^2(x)=\dfrac{1+\cos(2x)}{2}$

We can divide all the angles by 2 and we get

$\cos^2\left(\dfrac{x}{2}\right)=\dfrac{1+\cos(x)}{2}$

And finally

$\cos\left(\dfrac{x}{2}\right)=\pm\sqrt{\dfrac{1+\cos(x)}{2}}$

Angle x is a third quadrant angle, meaning that it is somewhere between 180 and 270. This implies that x/2 lies between 90 and 135. So, x/2 is a second quadrant angle, and its cosine is negative. This means that we can update the previous equation to

$\cos\left(\dfrac{x}{2}\right)=-\sqrt{\dfrac{1+\cos(x)}{2}}$

You know that

$\cos(x)=-\dfrac{1}{5}$

so, plug that value into the expression and you'll get cos(x/2).

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3 years ago