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bagirrra123 [75]
3 years ago
15

Dee’s clothing is having a discount of 40% on all shirts. Let x represent the regular price of any shirt in the store. Write an

expression that can be used to find the sale price of any shirts in the store.
Mathematics
2 answers:
Luden [163]3 years ago
6 0
S=shirt and P=price x=reg price so x-s I think
Alona [7]3 years ago
6 0

Here let us say x is the regular price.

let there be discount of say "y".

Now we are given that there is 40% discount.

So sale price = regular price - discount

discount = y = 40 % of x = 0.4x

So sale price = x - 0.4x

subtracting we get,

sale price = 0.6x

Sale price = 0.6 * regular price

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A hot air balloon descends at a rate of 320 feet per minute for 3 minutes. Use integers to calculate and
Amanda [17]
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Read 2 more answers
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

3 0
3 years ago
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