light stand for knowledge in the poem
note that for a 30°-60°-90° triangle , the sides are 1, √3, 2
If the hypotenuse (2) is equal to 18, find the other lengths
First, find side (1). Divide 18 by 2
18/2 = 9
Next, multiply 9 with √3
9(√3) = 9√3
Finally, find the perimeter. Add all sides:
P = 18 + 9 + 9√3
P = 9√3 + 27
hope this helps
The metallurgist would need 46.875 lb of an alloy containing 30 % copper and 3.125 lb of an alloy containing 62 % copper to produce 50 lb of a third alloy.
<h3>How to estimate proportions of ingredients for an alloy by weighted averages</h3>
In this question we must prepare a <em>third</em> alloy by using correct quantity of two alloys with different <em>copper</em> concentrations. <em>Required</em> weights can be determined by applying concept of <em>weighted</em> average:
(32/100) · (50 lb) = (30/100) · x + (62/100) · (50 - x)
32 · 50 = 30 · x + 62 · (50 - x)
32 · 50 = 30 · x + 62 · 50 - 62 · x
32 · x = 30 · 50
x = 46.875
The metallurgist would need 46.875 lb of an alloy containing 30 % copper and 3.125 lb of an alloy containing 62 % copper to produce 50 lb of a third alloy.
To learn more on weighted averages: brainly.com/question/18554478
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2x=y
two times the number of minutes = the amount of pages
The feet is one hundred inches
