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ohaa [14]
2 years ago
8

A 90-foot rope from the top of a tree house to the ground forms a 45° angle of elevation from the ground. How high is the top of

Mathematics
1 answer:
-Dominant- [34]2 years ago
6 0

Answer:

63.6 feet

Step-by-step explanation:

  • sin (45)=\frac{x}{90}
  • x=90 sin (45)
  • x=45\sqrt{2}
  • x = 63.6 feet
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What is -10=k+6 please show work thank you
Tresset [83]

Answer:

k=-16

Step-by-step explanation:

-10=k+6

subtract 6 both both sides to isolate the variable

-16=k

Happy Holidays!!

7 0
3 years ago
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9x+18+3x=1
Katen [24]
The error is in the second step they subtracted 3 from both sides but it was a 3x, which you can not do.
Correction.
9x+18+3x=1
12x+18=1
12x=-17
x=-17/12
3 0
3 years ago
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1. What is the theoretical probability that a coin toss results in two heads showing?
Setler [38]

Answer:

Step-by-step explanation:

1. What is the theoretical probability that a coin toss results in two heads showing?

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2. What is the experimental probability that a coin toss results in two heads showing?

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3. What is the theoretical probability that a coin toss results in two tails showing

0.5%

4.  What is the experimental probability that a coin toss results in two tails showing?

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5. What is the theoretical probability that a coin toss results in one head and one tail showing?

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6. What is the experimental probability that a coin toss results in one head and one tail showing?

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7. Compare the theoretical probabilities to your experimental probabilities. Why might there be a difference?

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There you go. Remember you can figure these answers out by yourself if you really try. From now on ill be answering questions and trying to help other people. Please read from your lessons as they can help you a lot, Thank you.

8 0
2 years ago
Just one problematic Answer
Arturiano [62]
All you have to do is divide 75 by .15. To start, you need to get rid of the decimal in .15, so move your decimal two spots to the right to turn .15 into 15. Then you have to move your decimal that is implied to be at the end of 75 over two spots because you moved the decimal in .15 which makes it 7,500. Now you have: 
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7 0
3 years ago
Use pictures for the question 100 points to brainlyest​
Leviafan [203]

Answer:

Step-by-step explanation:

Population of X is {1, 1, 2, 2, 2, 3, 3, 3}

Based on that, X's expected value, variance and standard deviation can be calculated as follows:

Expected Value, μ = 2.125 or 2.13

Variance, σ2 = 0.609375 0r 0.61

Standard Deviation, σ = 0.78062475 or 0.78

7 0
2 years ago
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