Calculate the protein intake of Tim Worker who weighs 160 lb. using the 0.45 factor.How much protein should he intake?
2 answers:
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Answer: Hello there!
if we define the y-axis as north and the x-axis as east, then we could use vectors (x,y) to represent the locations, where the (0,0) point is the visitors center.
The waterfall is in 6 miles east and 3 miles north of the (0,0), then we could represent it as (6,3)
the picnic site is 1 mile east and 2 miles north of the (0,0) then we could represent it as (1,2)
now we want to calculate the distance between these two points, first, we need to calculate the difference; this is:
(6,3) -(1,2) = (6 -1, 3-2) = (5,1)
if we want to calculate the total magnitude ( which is the total distance) of this vector, we need to use the Pythagorean theorem, where we considere the values of x and y as the cathetus of a triangle rectangle, and we want to obtain the hipotenuse of such triangle:
that we could round up to 5.1 miles, then the correct answer is the d.
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Explanation:
Check out the diagram below.
I have drawn out two number lines with the key points 28,91,93,94 marked on them. The diagram isn't to scale, but that doesn't matter. All that matters is that the numbers line up (eg: we have the two 28's line up vertically).
The first number line drawing on top shows the shading for set A. Everything in the shaded region is either smaller than 91, or larger than 93, or 93 itself. We exclude 91 due to the curved parenthesis. The square bracket says to include the 93.
For the second graph, you have two endpoints as open holes (to exclude both endpoints) and you shade everything between.
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After you draw the two number line regions, you would then mark off the interval(s) that they share in common.
The notation means "A intersect B" which means we want to find the stuff that is in both sets at the same time.
So we'll have two pieces here. The portion from 28 to 91 is the first interval, and then the second portion runs from 93 to 94. For each interval sub-piece, the endpoints are excluded
So that leads to the final answer