Answer:
The range would you expect 99.00 percent of the grades is 44.2 to 95.8
Step-by-step explanation:
In order to calculate the range would you expect 99.00 percent of the grades we would have to make the following calculation:
range would you expect 99.00 percent of the grades=mean ± 2.58* standard deviation
According to the given data we have the following:
mean=70
standard deviation=10
Therefore, range would you expect 99.00 percent of the grades= 70± 2.58*10
=70 - 2.58*10 to 70 + 2.58*10
Therefore, range would you expect 99.00 percent of the grades=44.2 to 95.8.
In a equilateral triangle, all sides are equal.
hence each slant side = 12cm
to find the height of the triangle :
use Pythagoras’ Theorem (A^2 + B^2 = C^2)
A = height
B = 6
C = 12
A^2 = 108
A = 10.392... (5s.f.)
area = ½ x base x height
= ½ x 6 x 10.392...
= 31.176
= 31.2 (3s.f.)
Answer:
Step-by-step explanation:
Answer:
-2°F
Step-by-step explanation:
So on Sunday night, the temperature was -10°F.
And by Monday morning, the temperature has increased by 8°F.
In other words, to find the temperature on Monday morning, we just have to add 8 to -10. Therefore:
The temperature on Monday morning is -2°F