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Phoenix [80]
3 years ago
12

Please help fast !!!! I really Don't understad This i need help please its so frustrating

Mathematics
1 answer:
jeka943 years ago
4 0
Whit what you need help?
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What is rounded 11.375 nearest 10th
iris [78.8K]
Since the number 3 is in the tenth place and the number to the right of it is 5 or greater, you would round the 3 to 4. Your final answer would be 11.4
4 0
3 years ago
Read 2 more answers
What is the standard deviation of the following test scores? Round your answer to the nearest hundredth. 82, 76, 93, 82, 73, 80
Juli2301 [7.4K]
First we find the mean (or the average)...
average : (82 + 76 + 93 + 82 + 73 + 80 / 6) = 486/6 = 81

now we subtract the average from every data point.....then square the result
82 - 81 = 1.......1^2 = 1
76 - 81 = -5....-5^2 = 25
93 - 81 = 12....12^2 = 144
82 - 81 = 1.......1^2 = 1
73 - 81 = -8.....-8^2 = 64
80 - 81 = -1.....-1^2 = 1

now we find the mean (or average) of those numbers
(1 + 25 + 144 + 1 + 64 + 1) / 6 = 236/6 = 39.33

that is ur variance....to find the standard deviation, take the square root of ur variance.....

square root 39.33 = 6.27 <==
7 0
3 years ago
At a given time and place, the height of an object varies directly as the length of its shadow. If a flagpole 6 meters high cast
AfilCa [17]

Answer:

Height of the building that cast a shadow of 45 meters is 27 meters

Step-by-step explanation:

This is a direct variation and let height of the object represent H and shadow represent S

Hence H∝S

H = KS, where K=constant of proportionality

K = H/S

K = 6/10 = 0.6

Hence height of a building that cast a shadow of 45 meters

H = KS

H = 0.6 × 45 = 27 meters

5 0
4 years ago
A coordinate grid is placed over a map and every unit represents 1 mi. The point at (3, 8) represents the location of the baseba
alexira [117]
The distance between 2 points ( x_{1}, y_{1}) and ( x_{2}, y_{2}) on the coordinate plane is \sqrt{(x_{2}-x_{1})^2-(y_{2}-y_{1})^2}
So the distance between the given points is \sqrt{(7-3)^2+(-2-8})^2}= \sqrt{4^2+(-10)^2}= \sqrt{16+100}=  \sqrt{116}=10.8
As every unit is 1 mile, so the distance should be 10.8*1=10.8miles.

Hope this helps.
3 0
4 years ago
HEEEEEEEEELP MEEE PLSSSS ꧁(◕╱╲◕)꧂
enyata [817]

Answer:

b

Step-by-step explanation:

6 0
3 years ago
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