Simplify the expression: 3(2x2 + 7x + 4) - 8x2 + 15
1 answer:
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You can use the Pythagorean theorem to answer this. The diagonal is the hypotenuse of the right triangle that is formed. So, your equation will look like (h is height):
We have to solve for h:
You can plug it into a calculator, and you get approximately 19.105. The answer closest to that is B. So, that's your answer! Hope it helps. If anything doesn't make sense, hmu!
We have to solve for h:
You can plug it into a calculator, and you get approximately 19.105. The answer closest to that is B. So, that's your answer! Hope it helps. If anything doesn't make sense, hmu!
5g + 4(-5 + 3g) = 1 - g
5g - 20 + 12g = 1 - g
17g - 20 = 1 - g
there can be to answer
g =
or
you can simplify
or 
5g - 20 + 12g = 1 - g
17g - 20 = 1 - g
there can be to answer
g =
you can simplify
If n is rational, it means that
Therefore when we do n² we can write it as
Remember that the product of two integer numbers is also an integer, therefore we can guarantee that
Then we can confirm that n² is the quotient of two integers and the denominator is not zero, therefore, n² is always rational, it cannot be an irrational number