Answer:
2.275%
Step-by-step explanation:
We start by calculating the z-score
Mathematically;
z-score = (x-mean)SD
here, x = 70.5
mean = 65.5
SD = 2.5
Substituting these values;
z = (70.5-65.5)/2.5
= 5/2.5 = 2
So we want to calculate the probability that;
P( z> 2)
We check the standard normal distribution table for this
That will be
0.02275
In percentage, this is 2.275 %
Answer:
a.51
b.131.5
d.131.5
w.131.5
x.51
y.131,5
z.51
don't know the rest
Step-by-step explanation:
A. is obviously the most easiest one, as you just have to fill it up 3 times to get 3 gallons.
The next one to measure exactly 3 gallons of water is B), because:
1) the 100-gallon barrel is more than 1 gallon, and is much more harder than 3 gallons.
2) Each person's 'palm' can hold different amounts of water, and so it can vary by the size of the palm.
So IF it cannot be (A), then your next choice is (B), as you only need 768 teaspoons for each gallon.
But, you should report this problem to the teacher, since A is obviously the best choice
Answer:
Step-by-step explanation:
The area of an equilateral triangle with side length 
is equal to 
. Since the perimeter is 24 units and there are three equal sides to an equilateral triangle, each side is 
units.
Substituting in this value, we get:
Answer:
14
Step-by-step explanation:
.28 times 50 equals 14
