An escalator in a department store is to carry people a vertical distance of 19 feet between floors. How long is the escalator if it makes an angle of 30
with the ground?
?
__________ feet.
Fill in the blank(s) with the appropriate word(s).
38
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Solve the problem.Acetylene is a solvent frequently used to clean lubricants from machine components. Once used, the dirty solvent need not be discarded. It may be distilled to recover pure acetone from the soiled mixture. During a distillation cycle, 65% of the acetone can be recovered. Calculate the effective volume of 1 liter of acetone. [The effective volume is the original 1 liter plus the accumulated amount recovered from an infinite number of distillation cycles].
A. 2.857 L B. An infinite number of liters C. 1.538 L D. 1.650 L
Determine the number by which both sides of the equation must be multiplied or divided, as specified, to obtain just x on the left side.-x = 0.93; divided
A. 0.93
B. 
C. -1
D. 
Classify the triangle as equilateral, isosceles, or scalene. Then classify it as right, obtuse, or acute.
A. Isosceles; obtuse B. Equilateral; acute C. Equilateral; obtuse D. Scalene; obtuse
Provide an appropriate response.How many different five-letter code words are possible from the first ten letters of the alphabet if the first letter cannot be a vowel and adjacent letters must be different.
Fill in the blank(s) with the appropriate word(s).