Answer:
#3×|x-9|=0
|x-9|=0
X-9=0
X=9
# |2x-9|-4=2
|2x-9|=2+4
|2x-9|=6
2x-9=6
2x=9=-6
X=15/2
X=3/2
1 to x power =3/2 or
2 to x power =15/2
Step-by-step explanation:
Hope I helped u
Answer:
d. 90 cm, 1.2 cm
Step-by-step explanation:
Given that:
The sample size n = 36
For the length of the link:
The mean 
= 2.5
The standard deviation s = 0.2 cm
In a chosen 36 links, The mean and standard deviation for the length chain is as follows:
Mean = n
Mean = 36×2.5
Mean = 90 cm
The Standard deviation = s×√n
The Standard deviation = 0.2×√36
The Standard deviation = 0.2×6
The Standard deviation = 1.2 cm
The answer is 12/7 of an hour, hope it helps
C must be 80° to make the triangle angles add to 180°. The corresponding angles of similar triangles are congruent. So
Answer: y=80°
Answer:
C. an= 9(1/3)n-1
Step-by-step explanation:
The decreasing curve means the base of the exponential factor is less than 1, eliminating choices B and D. The value of the term is 9 at n=1, so eliminating choice A.
The general form of the n-th term is ...
an = a1·r^(n-1) . . . . first term a1, common ratio r
so we expect to see an exponent of (n-1) when a1 is the value for n=1. If you match the pattern above to the answer choices, you see the only decision required is whether r=3 or r=1/3. The decaying curve of the graph shows you that r < 1, so the choice is r=1/3 and the formula is ...
an = 9(1/3)^(n-1) . . . . . . . parentheses are needed on the exponent
