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3 years ago

I need to know how to solve the problem

Mathematics

1 answer:

LiRa [457]3 years ago

7 0

Start by multiplying b to both sides of the equation to get rid of the fraction. Now you have: Ub = ak.

To isolate a, divide both sides of the equation by k. $\frac{Ub}{k}$ = a is the final answer.

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Under a dilation, the point (3, 5) is moved to (6, 10).

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MUSTONENTS

VMariaS [17]

Answer:

15 quarters

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15 quarters = $3.75

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Katena32 [7]

5 degrees is your answer.

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devlian [24]

Answer:

250

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Show all work and reasoning

Natalija [7]

Split up the interval [2, 5] into $n$ equally spaced subintervals, then consider the value of $f(x)$ at the right endpoint of each subinterval.

The length of the interval is $5-2=3$ , so the length of each subinterval would be $\dfrac3n$ . This means the first rectangle's height would be taken to be $x^2$ when $x=2+\dfrac3n$ , so that the height is $\left(2+\dfrac3n\right)^2$ , and its base would have length $\dfrac{3k}n$ . So the area under $x^2$ over the first subinterval is $\left(2+\dfrac3n\right)^2\dfrac3n$ .

Continuing in this fashion, the area under $x^2$ over the $k$ th subinterval is approximated by $\left(2+\dfrac{3k}n\right)^2\dfrac{3k}n$ , and so the Riemann approximation to the definite integral is

$\displaystyle\sum_{k=1}^n\left(2+\frac{3k}n\right)^2\frac{3k}n$

and its value is given exactly by taking $n\to\infty$ . So the answer is D (and the value of the integral is exactly 39).

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4 years ago