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3 years ago

16-(-10) need help plz

Mathematics

1 answer:

vichka [17]3 years ago

5 0

Multiplying a negative and negative is equal to positive, so:

16-(-10)
=16+10
=26

hope this helps!!

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If f(x) = x2 + 2x + 3, what is the average rate of change of Rx) over the interval (-4, 6]?

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Step-by-step explanation:

The average rate of change of a function over an interval is simply the slope over the interval because:

$let \: g(x)=f'(x)\\\frac{\int\limits^b_a {g(x)} \, dx }{b-a}(the\:average\:value\:of\:g)=\frac{f(b)-f(a)}{b-a}$

We have to know f(6) and f(-4)

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On Monday Simon's class filled 3 2/5 boxes with books to donate to charity. On Wednesday the class filled 4 2/5 more boxes with

TiliK225 [7]

Simon class donated $7\frac{4}{5} \text{ or } 8$ boxes of books

<h3><u>Solution:</u></h3>

Given that,

On Monday Simon's class filled $3\frac{2}{5}$ boxes with books to donate

On Wednesday the class filled $4\frac{2}{5}$ more boxes with books

To find: total number of boxes of books donated

Total number of boxes of books donated = boxes filled in monday + boxes filled in wednesday

From given statement,

Boxes of books filled in monday = $3\frac{2}{5} = \frac{5 \times 3 +2}{5} = \frac{17}{5}$

Boxes of books filled in wednesday = $4\frac{2}{5} = \frac{5 \times 4+2}{5} = \frac{22}{5}$

Therefore,

Total number of boxes of books donated = $\frac{17}{5} + \frac{22}{5}$

$\rightarrow \frac{17}{5} + \frac{22}{5} = \frac{17+22}{5} = \frac{39}{5} = 7\frac{4}{5} = 7.8\\\\\rightarrow 7.8 \approx 8$

Thus simon class donated $7\frac{4}{5} \text{ or } 8$ boxes of books

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3 years ago