Answer:
1hour 40min
Step-by-step explanation:
2hour=3f
?=2/8
1hour 40min
Answer:
Jerry ran a farther distance and not Henry.
Step-by-step explanation:
We are given the following information in the question:
Jerry rain 
miles and Henry ran 2.1 miles.
Henry claimed that he ran a farther distance.
This is a wrong claim because when we compare:
and 2.1
Hence, Jerry ran a farther distance and not Henry.
Henry may have made some mistake in plotting and 2.1 on the number line.
Answer:
(x+12)x(x-2)
Step-by-step explanation:
Answer:
The percentage of people that scored less than Calvin is 38.21 %
Step-by-step explanation:
In this question, we are concerned with calculating the percentage of exam scores lesser than what Calvin scores.
To calculate this, we first need to calculate the standard score or the z-score of Calvin result.
Mathematically;
z = (x - mean)/SD
from the question, x = 78, mean = 81 and SD = 10
Substituting this, we have
z = (78 -81)/10 = -3/10 = -0.3
So we proceed to calculate the probability.
P(x < 78) or P(z < -0.3)
We make use of the standard table to get this probability
P(z< - 0.3) = 0.38209
In percentage, this is same as 38.209% or more simply 38.21%
Answer:
139
Step-by-step explanation:
First we need to find diameter 132/3.14=42 rounded
Then we halve it to find radius 42/2=21
Formula for area is radius x radius x 3.14
21 x 21 = 441 x 3.14 = 138.74 round up is 139
