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3 years ago

3.249 rounded to nearest tenth

2 answers:

6 0

The 4 would be rounded to a 5 because of the 9 and then the 2 would get rounded up to a 3 because of the 5. So the answer would be 3.3

Viktor [21]3 years ago

4 0

Answer:

3.2

Step-by-step explanation:

4 is in the hundredths place. It is less than 5 so you leave the tenths place alone, so you get 3.2.

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54 + 81 = 9(6 +_) I need the help to answer my question

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Answer:

Step-by-step explanation:

54+81=9(6+9)

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Determine g(x + a) – g(x) for the following function.<br> g(x) = 5x2 + 2x

dusya [7]

Answer:

$g(x + a) - g(x) = 10ax + 5a^2 + 2a$

Step-by-step explanation:

We are given the function:

$g(x) = 5x^2 + 2x$

And we want to determine:

$\displaystyle g(x+a) - g(x)$

Substitute:

$\displaystyle \begin{aligned}g(x + a) - g(x) &=\left[5(x+a)^2 + 2(x+a)\right] -\left[5x^2+2x\right] \end{aligned}$

And simplify:

$\displaystyle \begin{aligned}g(x + a) - g(x) &=\left[5(x+a)^2 + 2(x+a)\right] -\left[5x^2+2x\right] \\ \\ &= \left(5(x^2 + 2ax + a^2) + (2x + 2a) \right) + \left(-5x^2 - 2x\right) \\ \\ &= \left((5x^2 + 10ax + 5a^2) + (2x + 2a)\right) + \left(-5x^2 - 2x\right) \\ \\ &= (5x^2-5x^2) + (10ax + 2x - 2x) + (5a^2+2a) \\ \\ &= 10ax + 5a^2 + 2a \end{aligned}$

In conclusion:

$g(x + a) - g(x) = 10ax + 5a^2 + 2a$

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2 years ago