Answer:
Just took the test :))
Step-by-step explanation:
Look at the image down below!! ヽ(o＾▽＾o)ノ
If 10 percent of your day is spent studying, how many hours do you devote to studying? Use 24 hours as the length of a day.
1 answer:
Answer:
2 hours and 24 minutes (2.4 hours)
Step-by-step explanation:
Our output value is 24. We represent the unknown value with x. From step 1 above, 24=100, and x=10. This results in a pair of simple equations:
24=100%
x=10%
By dividing equation 1 by equation 2 and noting that the right hand sides of both equations have the same unit (%); we have:
Again, the reciprocal of both sides gives
x=2.4
Therefore, x equals 2.4.
The 2 in 2.4 represents 2 hours. The 0.4 in 2.4 represents minutes, as there isn't enough to fill a full hour.
4/10ths of 60 is 24.
Therefore, you would be devoting 2 hours and 24 minutes to studying.
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Answer:
-6 ≤ x < ∞
Step-by-step explanation:
You want the domain of the function y = √(x+6) -7.
<h3>Domain</h3>The domain of a function is the set of x-values for which the function is defined. On a graph, it is the horizontal extent of the graph.
The square root function is undefined for negative arguments, so that limits the domain of the given function:
x+6 ≥ 0
x ≥ -6 . . . . . domain of the given function
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<em>Additional comment</em>
When the domain is written in interval notation, both the left and right ends of the interval must be specified.
[-6, ∞)
The square bracket identifies -6 as being part of the domain. The parenthesis is used with ∞, because that number has no specific value.
