Answer:
9 M
Step-by-step explanation:
a^2+b^2=c^2
12^2+b^2=15^2
144+b^2=225
-144 -144
b^2=81
b=sqrt of 81
b=9
Answer:
Option C) 0.830
Step-by-step explanation:
We are given the following in the question:
The heights (in inches) of males in the United States are believed to be approximately normally distributed with mean 
.
Sample size, n = 25
Sample mean, 
= 69.72 inches
Standard deviation, 
= 4.15 inches
We have to find the standard error of .
Standard error =
Thus, the standard error of is 0.83 inches.
The correct answer is
Option C) 0.830
Question 1. question 2. and question 3. Thanks! :)
Answer:
C
Step-by-step explanation:
it answer is C
We are told that the principle is the same for both investments so we can say:
315=P(r+4)/100 and 175=Pr/100 solving both for P you have:
P=31500/(r+4) and P=17500/r since P=P:
17500/r=31500/(r+4)
175(r+4)=315r
175r+700=315r
-140r+700=0
-140r=-700
r=5
So the rates are 5% and (5+4)=9%
check...
P(9/100)=315 and P(5/100)=175
P=31500/9 and P=17500/5
P=157500/45 and P=157500/45
So P=P
note: P=$3500
3500(9/100)=$315
3500(5/100)=$175
