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Vesnalui [34]
3 years ago
7

Audrey read that the area of a new shopping mall is 57,600square feet. What are the greatest and least possible actual areas of

the mall if 58,000 square feet is an estimate to the nearest thousand?
Mathematics
1 answer:
OverLord2011 [107]3 years ago
6 0
Thousand is the fourth place from the left. The number is rounded up if the number before it is 5 or greater and rounded down if the number before it is 4 or less. 

The greatest number that would be the value of the actual area is,
    58449

The least number that the actual area could take is,
      57500


ANSWER: 58449 and 57500
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2 5/8 ×3 1/7<br> What's the answer for this ?
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Answer:

8 \frac{1}{4}

Step-by-step explanation:

Let us solve

2 \frac{5}{8}  \times 3 \frac{1}{7}  \\  \frac{21}{8}  \times  \frac{22}{7}  \\  \frac{462}{56}  \\  \frac{462 \div 2}{56 \div 2}  \\  \frac{231}{28}  \\  \frac{231 \div 7}{28 \div 7}  \\  \frac{33}{4}  \\ 8 \frac{1}{4}

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Find the values of the ratios(11 to 6) of the perimeters and areas of the similar figures.Write the ratios as fractions in simpl
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21 you stupid

\

Step-by-step explanation:

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Compute the lower Riemann sum for the given function f(x)=x2 over the interval x∈[−1,1] with respect to the partition P=[−1,− 1
Nata [24]

Answer:

21/64

Step-by-step explanation:

First, we need to note that the function f(x) = x² is increasing on (0, +∞), and it is decreasing on (-∞,0)

The first interval generated by the partition is [-1, -1/2], since f is decreasing for negative values, we have that f takes its minimum values at the right extreme of the interval, hence -1/2.

The second interval is [-1/2, 1/2]. Here f takes its minimum value at 0, because f(0) = 0, and f is positive otherwise.

Since f is increasing for positive values of x, then, on the remaining 2 intervals, f takes its minimum value at their respective left extremes, in other words, 1/2 and 3/4 respectively.

We obtain the lower Riemman sum by multiplying this values evaluated in f by the lenght of their respective intervals and summing the results, thus

LP(f) = f(-1/2) * ((-1/2) - (-1)) + f(0) * (1/2 - (-1/2)) + f(1/2)* (3/4 - 1/2) + f(3/4) * (1- 3/4)

= 1/4 * 1/2 + 0 * 1 + 1/4 * 1/4 + 9/16 * 1/4 = 1/8 + 0 + 1/16 + 9/64 = 21/64

As a result, the lower Riemann sum on the partition P is 21/64

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3 years ago
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