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Wewaii [24]
1 year ago
13

Helppp quickkkkkkk enough points

Mathematics
2 answers:
xenn [34]1 year ago
8 0

Answer:

A or 57 7/9ft3

Step-by-step explanation:

13/3x10/3x4/1 = 520/9=57 7/9

Fynjy0 [20]1 year ago
7 0

Answer:

a=2\\\\ b = 20\\\\ c = 47

Step by step explanation:

a(x) = 2(x+5)^2 -3\\\\~~~~~~~=2(x^2 +2 \cdot 5 \cdot x +5^2) -3\\\\~~~~~~~=2(x^2 +10x+25) -3\\\\~~~~~~~=2x^2 +20x +50 -3 \\\\~~~~~~~=2x^2 +20x +47\\\\\text{By comparing}~ 2x^2 +20x +47~ \text{with the standard form}~ ax^2 +bx+c,\\\\a=2,~ b = 20,~ c = 47

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3 years ago
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In Leakwater township, there are two plumbers. On a particular day three Leakwater residents call village plumbers independently
Marianna [84]

Answer:

25% probability that all three residents will choose the same plumbe

Step-by-step explanation:

For each resident, there are only two possible outcomes. Either they choose the first plumbe, or they choose the second. The plumbers are chosen independent of each other. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

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And p is the probability of X happening.

Each resident randomly chooses one of the two plumbers.

This means that p = \frac{1}{2} = 0.5

Three residents:

This means that n = 3

What is the probability that all three residents will choose the same plumb

This is P(X = 0)(all choose the second pumble) or P(X = 3)(all choose the first pumble). So

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

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P(X = 3) = C_{3,3}.(0.5)^{3}.(0.5)^{0} = 0.125

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4 0
3 years ago
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Step-by-step explanation:

5 0
3 years ago
10 1/2 * 10 1/2 simplify
Marta_Voda [28]

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change the mixed numbers to improper fractions and multiply the numerators / denominators

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3 years ago
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GarryVolchara [31]

Answer:

4. -135

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Step-by-step explanation:

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