We know that the entire angle is equal to 90 degrees (look at image below). This means that the sum of 4x-10 and x is 90 degrees, so you can make a formula:
4x - 10 + x = 90
Now you can solve for x
5x - 10 = 90
5x = 100
x = 20
Hope this helped!
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Answer:
1/9
Step-by-step explanation:
The ratio of areas is the square of the scale factor for linear dimensions.
Area(y)/Area(x) = (1/3)^2 = 1/9
Answer: Xavier earned $155.25 last week.
Step-by-step explanation:
To find out how much Xavier earn last week, we need to multiply how much He earns per hour ($11.50) by how many hours He worked last week (13.5h), so:
11.50 * 13.5 = 155.25
155.25 is already round to the nearest penny.
So, Xavier earned $155.25 last week.
Step-by-step Answer:
N=sample size = 200
sigma = population standard deviation = 1.2
s=Sample mean = 15.8
Best estimate of population mean = 15.8
standard error = sigma / sqrt(N)
= 1.2/sqrt(200)
= 0.08485
Therefore
estimate of population mean = 15.8 +/- 0.0848
