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Mathematics

1 answer:

Lorico [155]3 years ago

4 0

Find the surface area:

7.25 x 9.5 x 2 = 137.75 gets the surface area of the two rectangle sides.

To get the bottom rectangle, do 8 x 9.5 = 76

To find the two triangles, do 6 x 8 x 0.5 x 2 = 48

Now add them all together: 137.75+76+48=261.75

So, the answer is 261.75 square feet of material.

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The tax rate as a percent, r, charged on an item can be determined using the formula – 1 = r, where c is the final cost of the i

melisa1 [442]

The correct answer is:

$43.20

Explanation:

The formula we have is

c = p(1+r), where c is the total cost, p is the price of the item before tax, and r is the tax rate written as a decimal. This formula comes from the fact that adding a percent tax to the cost of an item takes 100% of the price and adds r% to it; this is why we multiply the price by (1+r).

Since our tax rate is 8%, r = 8% = 8/100 = 0.08. The price of the item is $40. Using this information, we have:

c = 40(1.08) = $43.20

3 0

3 years ago

Read 2 more answers

In a recent survey, 64 % of the community favored building a police substation in their neighborhood. If 14 citizens are chosen,

kozerog [31]

Answer: 0.1840

Step-by-step explanation:

The binomial probability formula :-

$P(X)=^nC_x\ p^x(1-p)^{n-x}$ , here n is the number total of trials , p is the probability of getting success in each trial and P(x) is the probability of getting success in x trial.