1) If y=kx, where k is a constant, and y=128 when x=16, what is the value of y when x is increased by 25%?

(I got 160?)

2) Aaron calculates using a certain foot and line spacing, that each page of a typed document contains at least 240 words and at most 260 words. What is the least number of pages needed for a 12,000-word document?

(I got 50 pages)

3) How many solutions to the equation 4 cos x=1 lie between x=0 and x=3(pi)


(^I don't understand this)

asked by Aline
  1. cosx=.25

    sketch the cosine curve over two cycles.
    well, you really want to look at only 1.5 cycles. How often does it equal .25? I see three in my sketch.

    posted by bobpursley
  2. how do you draw cycles? Or graph/sketch the equation?
    Are number 1 and 2 correct?

    posted by Aline

Respond to this Question

First Name

Your Response

Similar Questions

  1. Math

    Aaron's father is nine times as old as he is. One year ago, he was two years more than eleven as old as Aaron. Find Aaron's present age.
  2. Pre-Calculus(Trignometry)

    There are 3 airports, A , E and G. G is 200km from A.E is 160 km from A From G the bearing of A is 052 degrees. From A the bearing of E is 216 degrees. What's the distance between A and G? 360- 216 = 144 144-52 = 128 144-128 = 16
  3. Math

    Reasoning To measure the length of a closet, Aaron used his foot and measured 6 foot-lengths. His father measured 4 foot-lengths. Could they be measuring the same closet? Explain.
  4. Math

    Aaron and Alex decide to race from Tim Hortons to Alex's house. Aaron wins by 3/4 of a minute. If it took Alex 3.6 minutes, how long did it take Aaron?
  5. Physics

    which statement is true concerning the interference pattern from a double slit experiment? a) the dark fringes appear equally spaced b) the dark fringes increase spacing farther from the center line. c) the spacing of the bright
  6. Math

    How much did Aaron start with? Aaron spent 3/7 of his money. He gave ΒΌ of the remainder to his sister. He had $120 left. How much money did he have in the beginning? Explain how you got your answer. The way you solved this
  7. Math

    You want to install kitchen florr tiles that each measure 12 inches by 12 inches (1sq ft) Your kitchen measures 12 feet by 14 feet, but there is a 2 foot by 4 foot area around the sink that will NOT be tiled. How many tiles do you
  8. english

    Hello, Where can I find more information about Aaron the moor in "Titus Andronicus" by Shakespeare? Prompt: As Tamara's star rises, so does Aaron's influences. How does he use it? What are his stated motives and confessed motives?
  9. algebra

    Four friends together earned 128 mowing lawns. After paying an amount g for gasoline, they shared the money equally. Which equation shows the amount of each friend will receive? A. f(g) = 128 - g/4 B. f(g) = 128/4-g C. f(g) =
  10. literary

    No one could have predicted that a skinny 20-year-old baseball player with the Milwaukee Braves would one day break Babe Ruth's career home run record, but that is exactly what Hank Aaron did. Aaron was not a splashy or showy

More Similar Questions