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umka21 [38]
3 years ago
11

Can someone help me!

Mathematics
1 answer:
victus00 [196]3 years ago
8 0

Answer:

m∠A = 48.81°

Step-by-step explanation:

Given triangle is a right triangle and we have to measure ∠A.

Since, opposite side and adjacent sides of angle A has been given

So we will apply tangent rule to get the measure of angle A.

tan(∠A) = \frac{\text{Opposite side}}{\text{Adjacent side}}

tan(∠A) = \frac{8}{7}

∠A = \text{tan}^{-1}(\frac{8}{7})

∠A = 48.814

  ≈ 48.81°

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Mumz [18]

The lottery game is an illustration of probability

  • The total number of different selections is 1000
  • The probability of winning is 0.001
  • The net profit of winning is $262.82
  • The expected earning is -$1.156

<h3>The number of selections</h3>

Each of the three selections can be any of the 1o digits 0 - 9.

So, the total number of different selections is:

n = 10^3

n = 1000

<h3>The probability of winning</h3>

Only one of the 1000 selections can win.

So, the probability of winning is:

p = \frac 1{1000}

p = 0.001

<h3>The net profit</h3>

The stake amount is given as $1.42, and the earnings per game is given as $264.25.

So, the net profit is:

Net = $264.25 - $1.42

Net = $262.82

<h3>The expected winnings</h3>

This is calculated as:

E(x) = \sum x P(x)

So, we have:

E(x) = 262.82 * 0.001 - 1.42 * (1 - 0.001)

E(x) = -1.156

Hence, the expected earning is -$1.156

Read more about probability at:

brainly.com/question/25870256

4 0
2 years ago
A
victus00 [196]

Answer:

A week is 7 days so if she spends 3 hours a day that 21 hours during a whole week. Since we are trying to find 4 weeks we multiply by 4

21*4=84

Hope This Helps!!!

8 0
2 years ago
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Answer:

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Step-by-step explanation:

6x+12=2(3x+6)

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6x+12 = 6x+12

Subtract 6x from each side

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x is all real numbers

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I think the answer is y=1/4x+2.

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Answer: 5x-3

Step-by-step explanation:

(25x-15)

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