Solve by factoring. x2 - 49 = 0
1 answer:
You might be interested in
Answer:
99% Confidence interval: (1196,1973)
Step-by-step explanation:
We are given the following in the question:
Sample size, n = 20
Mean, μ = 1584
Standard Deviation, σ = 607
99% Confidence interval:
Putting the values, we get,
Thus, there is a 99% chance that it will break in approximately 1196 to 1972
Hi!
We can set up proportions to solve these.
1.
2.
Cross multiply to solve for x
1. 60 x 45 = 2700
2700/100 = 27
2. 8 x 100 = 800
800/0.5 = 1600
(Tip: dividing by 0.5 is the same as multiplying by 2)
The answers are
1. 27
And
2. 1600
Hope this helps! :)
We can set up proportions to solve these.
1.
2.
Cross multiply to solve for x
1. 60 x 45 = 2700
2700/100 = 27
2. 8 x 100 = 800
800/0.5 = 1600
(Tip: dividing by 0.5 is the same as multiplying by 2)
The answers are
1. 27
And
2. 1600
Hope this helps! :)