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NeX [460]
3 years ago
15

the amount of money spent weekly on cleaning maintenance and repairs at a large restaurant was observed over a long period of ti

me to be approximately normally distributed with the mean of $609 and standard deviation of $46
Mathematics
1 answer:
miv72 [106K]3 years ago
4 0

So P(-0.7537 < z < 1.3190) = 0.9063 - 0.2254 = 0.6809

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A group of friends wants to go to the amusement park. They have no more than $155
seraphim [82]

Answer:

9 people can go

Step-by-step explanation:

6.50 is a one-time deal. we take that away once and we're done with it.

155 - 6.50 = 148.5

148.5 / 16.50 = 9

4 0
3 years ago
As part of his math assignment, Santos has to estimate the height
ycow [4]

Answer:

105.46 feet

Step-by-step explanation:

We know all three angles (60, 90, and 30), as well as one side, which is adjacent to the 60 degrees. We want to find the side opposite to the 60 degree angle. To do this, we can use tangent, utilizing both opposite and adjacent.

Using tan, we can say that tan(60) = x/58, with x representing the height of the lighthouse (minus 5, because Santos is 5 feet tall and he is measuring the angle from the top of his head). Multiplying both sides by 58, we can get that 58 *tan(60) = x = 100.46. Add 5 to that to get 105.46 feet as your answer.

5 0
3 years ago
Solve for x: -5|x+1|=10
MrMuchimi
-5|x + 1| = 10
     -5       -5
   |x + 1| = -2

No Solution
8 0
3 years ago
Brayden was out at a restaurant for dinner when the bill came. His dinner came to $22. After adding in a tip, before tax, he pai
otez555 [7]

Answer:

30%

Step-by-step explanation:

28.60-22=6.60

6.60/22=0.3

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Find two integers whose sum is 2 and product is -3
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