-4
15+-19
15 to 19 is 4
19 is the larger than 15 so since 19 is negative your answer will also be negative
Answer:
114
Step-by-step explanation:
so lets call shelf 1 x
shelf 2 is twice size + 18 of shelf 1 so it is 2(x)+18
shelf 3 is 12 less than shelf 1 so x-12
shelf 4 is four more so x+4
Add them all together and it should be 5x+10= 2.5 m or 250 cm
Solve for x using cm
then plug into shelf 2 equation
Answer: dang i just had the answer
Step-by-step explanation:
Answer:
188 weeks of data must be sampled.
Step-by-step explanation:
From the information given, we can deduce that:
The Margin of error is within = 200
The confidence interval = 95%
The level of significance = 1 - C.I
= 1 - 0.95
= 0.05
The standard deviation = 1400
The number of weeks the data must be sampled can be determined by using the formula for sample size which is:
n = 188.24
n ≅ 188
Thus, 188 weeks of data must be sampled.
take 3/2 - 1/4 over to the right side of the equal sign( and then the signs change; the '+' & '-' )
then 1/2x + 3/2x =2x
and 5 -3/2 + 1/4 = 15/4
to get x alone you divide both sides by 2.
i hope this helps
xxx