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zimovet [89]
3 years ago
12

For an art project, you are using a piece of cloth that is cut out in the shape of a right triangle. Find the area of the cloth.

A triangle with side lengths 6 inches, 6 inches, and 8.5 inches.
Mathematics
1 answer:
Scorpion4ik [409]3 years ago
5 0

Answer:

A=17.99\ in^2

Step-by-step explanation:

Given that,

A triangle with side lengths 6 inches, 6 inches, and 8.5 inches.

We need to find the area of the cloth.

The side lengths form an isosceles triangle. The formula for the area of the isosceles triangle is given by :

A=\dfrac{1}{2}\times b\times h

Where

h=\sqrt{a^2-\dfrac{b^2}{4}}

So,

A=\dfrac{1}{2}\times b\times \sqrt{a^2-\dfrac{b^2}{4}}

Put a = 6 and b = 8.5

So,

A=\dfrac{1}{2}\times 8.5\times \sqrt{6^2-\dfrac{8.5^2}{4}}\\\\A=17.99\ in^2

So, the area of the cloth is equal to 17.99\ in^2.

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kumpel [21]

Answer:

Ball hits the ground after 4.5 sec

Step-by-step explanation:

Let a -1, so that the leading coefficient is positive

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-1 \times (16t^2 +18t -405)

The key coefficients of two binomial variables can be 1 and 16, or 2 and 8, or 4 and 4, for the leading coefficient of 16.

Yet they can't actually be 4 and 4 because the linear (x) term coefficient has to be a multiple of 4, which it isn't and leading coefficients 1 and 16 on the binomial factors is not likely.

So, 2 and 8 taken as the leading coefficients of  two binomial factors.

For constant  405, possible factorizations are (81\times 5, 27 \times 15, 9 \times 45).

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3 years ago
A manufactured lot of buggy whips has 20 items, of which 5 are defective. A random sample of 5 items is chosen to be inspected.
dimulka [17.4K]

Answer:

a. 39.55%

b. 44.02%

Step-by-step explanation:

We have the following data:

n = 5

x = 1

p = 5/20 = 0.25

to. If the sampling is done with replacement.

We apply the binomial distribution formula, which is as follows:

P = nCx * (p ^ x) * ((1-p) ^ (n-x))

Where nCx, is a combination, and is equal to:

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b. if the sampling is done without replacement.

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5C1 = 5! / 1! * 4! = 5

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Answer:

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Step-by-step explanation:

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