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3 years ago

You can drive your car for 4.5 hours at the average speed of 70 miles per hour. how far did you go?

Mathematics

1 answer:

Zigmanuir [339]3 years ago

3 0

Answer:

Step-by-step explanation:

28.5

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Is 10,20,30 a right triangle or not a right triangle?

Vlada [557]

9514 1404 393

Answer:

not a right triangle

Step-by-step explanation:

These lengths will form a triangle iff ...

10 + 20 > 30 . . . . . false

These side lengths do not form a triangle. It is NOT a right triangle.

_____

<em>Additional comment</em>

We notice the differences between these numbers are the same: 10. The only right triangle with side lengths having the same difference is some multiple of a 3-4-5 right triangle. For a right triangle with side lengths having a difference of 10, the sides would have to be 30, 40, 50--not 10, 20, 30.

3 0

3 years ago

What’s the surface. area

DENIUS [597]

Answer:

138.61 square centimeter

(Please tell me if I'm wrong)

7 0

3 years ago

Factor the polynomial. <br> 8g + 16h

AVprozaik [17]

Answer:

$8g+16h=8(g+2h)$

Step-by-step explanation:

The given expression is

$8g+16h$

To factor this polynomial, we just need to extract the common factor. Or you can see as the greatest common factor.

What is the greatest common factor between 8 and 16?

16: 1, 2, 4, 8, 16.

8: 1, 2, 4, 8.

You can observe that the greatest common factor is 8, so we extract it from both numbers

$8g+16h=8(g+2h)$

Notice that we placed the GCM in the front as a product, if we don't do that, it would be completely wrong, because we can change the equivalence of the expression. Now, notice that each variable have different coefficients, that is because if you extract the GCM, you need to placed its quotients as coefficients.

Therefore, the factor of the polynomial is

$8g+16h=8(g+2h)$

6 0

3 years ago

Help meeee pleaseeeeee

Leto [7]

Answer: B, angle 1 and angle 7.

Step-by-step explanation: Of all the options provided, B is the only one where the the two angles are not congruent to each other. Also, same side interior angles are congruent, so...

5 0

3 years ago

<img src="https://tex.z-dn.net/?f=%20%5Cint%20%5Cfrac%7Bdx%7D%7Bxln%5E%7Bp%7Dx%20%7D" id="TexFormula1" title=" \int \frac{dx}{xl

Eva8 [605]

Substitute $u=\ln x$ , so that $\mathrm du=\dfrac{\mathrm dx}x$ . The integral is then equivalent to

$\displaystyle\int\frac{\mathrm dx}{x\ln^px}=\int\frac{\mathrm du}{u^p}=\begin{cases}\dfrac{u^{p+1}}{p+1}+C&\text{for }p\neq1\\\\\ln|u|+C&\text{for }p=1\end{cases}$

Then transforming back to $x$ gives

$\displaystyle\int\frac{\mathrm dx}{x\ln^px}=\begin{cases}\dfrac{\ln^{p+1}x}{p+1}+C&\text{for }p\neq1\\\\\ln|\ln x|+C&\text{for }p=1\end{cases}$

4 0

3 years ago