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vekshin1
3 years ago
15

I really need help please

Mathematics
1 answer:
Lana71 [14]3 years ago
6 0

Answer:

Step-by-step explanation:

We have two sides; the Adjacent and the Hypotnuse

Meaning we will use Cos

Cos = A/H

Cos X = 16/19

Use the inverse of Cos to find the angle

X = cos-1 (16/19)

X = 0.45499141546

X = 0.45

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what do you mean she translated it?

Step-by-step explanation:


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3 years ago
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The American Veterinary Association claims that the annual cost of medical care for dogs averages $100, with a standard deviatio
Tomtit [17]

Answer:

a)20$

b)46,1$

c)0,3336

d)No concerns

Step-by-step explanation:

A) To find expected difference of cost of medical care for dogs and cats we can simply subtract average costs of cats and dogs.

120-100=20

Expected difference will be 20$.

B) To find the standard deviation of that difference, we need to square deviations and add them and square root it again.

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C)We need to find the Z value to find the probability of more expensive dogs than cats in a Vet vise.Z=(0-20)/46,1=-0,434

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From the Z table that you can find at the attachment. The probability is %33,36 or 0,3336

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3 0
3 years ago
Matt is going to see a hockey game. His ticket cost $25 plus he will pay $3 per food or drink item that he buys from the concess
Ira Lisetskai [31]

Answer: 25+3x

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Step-by-step explanation:

5 0
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Answer:

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we know that

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3 years ago
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