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Andrew [12]
3 years ago
11

The Bill for dinner at Dave and Busters last night was $62.20. The waiter received an 18% tip. How much of a tip did the waiter

receive?
Mathematics
1 answer:
notsponge [240]3 years ago
3 0
11.196 or 11.20 is the answer
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What is the surface area of the cylinder with height 5 mi and radius 6 mi? Round your answer to the nearest thousandth.
Delicious77 [7]

Step-by-step explanation:

Given

h = 5 mi

r = 6 mi

Surface Area of Cylinder =

2\pi \: rh + 2\pi {r}^{2}  \\  = 2\pi(6)(5) + 2\pi ({6}^{2})  \\   = 2\pi(30) + 2\pi(36) \\  = 60\pi + 72\pi \\  = 132\pi \\  = 414.690 {mi}^{2} (nearest \: thousandth)

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3 years ago
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Which rate is the lowest price?
m_a_m_a [10]

a. 1.15

b. 6.20 divided by 4 = 1.55

c. 5 divided by 4 = 1.25

d. 5.50 divided by 5 = 1.1


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A drug company conducts trials of a new vaccine for a rare but usually fatal disease. The company creates a
GalinKa [24]

Answer:

What can be said about the model are;

1) The company predicts 4 failures before success

2) Each trial is independent

3) The probability is the same for each trial

4) Success is defined as preventing the disease

Step-by-step explanation:

The probability of success for the vaccine, p = 0.2

Therefore, the probability that the vaccine is effective and prevents the disease = 0.2

A geometric distribution probability of success is given by the following formula;

P(X = x) = p × q⁽ˣ⁻¹⁾

The expected value, E(Y) = 1/p

The number of failures before success, E(Y) = (1 - p)/p = (1 - 0.2)/0.2 = 4

Where;

q = The probability of a trial failing = 1 - p = 1 - 0.2 = 0.8

q = 1 - p

∴ The e

The geometric model criteria are;

a) Each trial can only have one of two outcomes success or failure

b) The probability of success for each trial is fixed

c) The geometric distribution is concerned with finding how many trials are required to get one success

d) The trials are independent

Therefore, we have;

The number of failures the company predicts before a success = 4 failures

2) The trials are independent

3) Each trial has an equal probability

4) Success is defined by the effectiveness of the vaccine in the prevention of the disease

4 0
3 years ago
What are2 continents that are made completely out of desert??
laiz [17]
Antarctica and asia


I hope this helps
4 0
3 years ago
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