<h2>Answer:</h2>
w= -8/9
alternative form:
w= -0.8
<h2>Step-by-step explanation:</h2>
3(3w-4)=-20
distribute by multiplying the numbers in parenthesis by 3
9w-12=-20
add 12 to both sides
9w=-8
divide both sides by 9
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w= -8/9
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He can conclude that the system of equations has no solution since one equation in it always results with false equivalency.
Hope this helps.
r3t40
Answer: 11
Step-by-step explanation:
We know that the degree of freedom for a t-distribution is given by :-
, where n is the sample size.
Given : A repeated-measures experiment and a matched-subjects experiment each produce a t statistic with df = 10.
Then, the number of individuals participated in each study =
Hence, the number of individuals participated in each study =11.
Answer:
The answer will be the second one
Step-by-step explanation:
Answer:
14 years
Step-by-step explanation:
here;
A = P(1-r)^n
we want to cut the purchasing power by half. What this means is that we will be making the amount half of what it used to be
what we want to calculate here is the value of n that makes A = P/2
r = 4.8% = 4.8/100 = 0.048
P/2 = P(1-0.048)^n
take off p from both sides
0.5 = 0.952^n
Take the log of both sides
log 0.5 = log 0.952^n
log 0.5 = n log 0.952
n = log 0.5/log 0.952 = 14.01
Which means the number of years is 14