A triangle has side lengths of 10 inches, 24 inches, and 26 inches. is this a right triangle?

1 answer:

7 0

To check it we can use Pythagorean theorem.
$a^2+b^2=c^2$ , where c is the longest side.
Lets check it
Assume that a=10 and b= 24
$10^2+24^2=100+576=676$
Now lets compare with c^2=676
Its equal, so its right triangle.

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6/7 (7/6)x=5 (6/7) what is the value of x?

Masja [62]

Answer:

x is 30/7

Step-by-step explanation:

You want to isolate x.

First, solve 5 * 6/7. The answer is 30/7.

Next, divide both sides by 6/7. This will cancel out the 6/7 on the left . For the right, when dividing fractions, you must take the reciprocal of the second fraction and multiply by it. So instead of having 30/7 divided by 6/7, you will have 30/7 * 7/6. The answer is 210/45 which simplifies to 5.

Third, you want to divide both sides by 7/6. Again the 7/6 on the left will be cancelled out. And you must do 5 * 6/7. In order to make the 5 look like a fraction to reduce confusion, you can set it over 1 (thus, you would do 5/1 * 6/7). The answer is 30/7.

You can plug it back into the equation to check.

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BlackZzzverrR [31]

Answer:

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Step-by-step explanation:

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3 years ago

Which of these is a unit of density? A. km/m³ B. kg/m² C. kg/m³ D. kg/m

zloy xaker [14]

Answer:

$\huge\boxed{C.\ \dfrac{kg}{m^3}}$

Step-by-step explanation:

$density=\dfrac{mass}{volume}\\\\\text{the unit of mass is}\ kg\\\text{the unit of volume is}\ m^3\\\\\text{therefore the unit of density is}\ \dfrac{kg}{m^3}$