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Maurinko [17]
3 years ago
14

Please help I'm so confused I just need the answer to 15

Mathematics
1 answer:
Kaylis [27]3 years ago
3 0
Why they add up is because you have to add up the whole numbers and then carry over the .3 to the other side.
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A fireworks company has two types of rockets called Zinger 1 and Zinger 2. The polynomial -16t2 + 150t gives the height in feet
irga5000 [103]

Zinger 1 = -16(6)^2 +150(6) = 324 feet

Zinger 2 = -16(6)^2 + 165(6) = 414 feet

414-324 = 90 feet

Zinger 2 is 90 feet higher

4 0
4 years ago
What is the standard deviation of the data set?
Temka [501]
The Standard Deviation is a measure of how spread out numbers are. Standard deviation can be calculated by the expression as follows:

s = √∑(x - x(mean))^2/n-1

x(mean) = 24

s = √∑(x - 24)^2 / 7-1
<span>s = 6.11

Hope this answers the question. Have a nice day.</span>
5 0
4 years ago
What is y=-x+6?........
SIZIF [17.4K]

Answer:

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8 0
3 years ago
A cat spends about 7 out of 10 hours sleeping about what percent of a cat's day is spent sleeping
hram777 [196]
I understand that it means that out of every 10 hours, a cat spends 7 sleeping (not 7 hours in a day).


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a percentage stays constant, this means that a cat sleeps 70 % of each 10 hours, but also 70% of the day.
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3 years ago
Which expression is equivalent to (4x+11)+7x?
Anna007 [38]
HEY THERE FAM.

THE CORRECT ANSWER IS....<span> D.(4x-7x)+11</span>
4 0
3 years ago
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