22. Thirty percent of the high school is involved in athletics. If 15 percent of the athletes play football, what percentage of the whole school plays football? A. 4.5 percent C. 15 percent B. 9.0 percent D. 30 percent
22. Thirty percent of the high school is involved in athletics. If 15 percent of the athletes play football, what percentage of the whole school plays football? A. 4.5 percent C. 15 percent B. 9.0 percent D. 30 percent
Trigonometry (11th Edition)
11th Edition
ISBN:9780134217437
Author:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Publisher:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Chapter1: Trigonometric Functions
Section: Chapter Questions
Problem 1RE:
1. Give the measures of the complement and the supplement of an angle measuring 35°.
Related questions
Question
PLEASE ANSWER ALL OF THIS QUESTION ASAP!!!
Transcribed Image Text:22. Thirty percent of the high school is involved in
athletics. If 15 percent of the athletes play football,
what percentage of the whole school plays football?
A. 4.5 percent
C. 15 percent
B. 9.0 percent
D. 30 percent
23. Describe the locus represented by Iz + 2i| + |z - 211
= 6.
A. circle
B. parabola
24. If the average value of a periodic function over one
period is zero and it consists of only odd harmonics,
then it must be possessing
A. 455п
B. 625п
A. half-wave
B. even quarter-wave
D. odd
C. odd quarter-wave
25. A chord is 40 cm long and its midpoint is 40 cm from
the midpoint of the longer arc. Find the area of the
circle.
C. ellipse
D. hyperbola
A. 27m
B. 30m
26. A university mathematics department has 10 professors
and will offer 20 different courses next semester. Each
professor will be assigned to teach exactly 2 of the
course, and each course will have exactly have one
professor assigned to teach it. If any professor can be
assigned to teach any course, how many different complete
assignments of the 10 professors to the 20 courses are
possible?
C. 568n
D. 25п
A. 20/210
C. 1020 - 210
D. 1020 100
B. 101/29
27. Given a triangle, C = 100 degrees, a = 15m, b = 20m.
Find c.
A. a circle
B.
28. Dave is 46 years old, twice as old as Rave. How old
is Rave?
A. 30
B. 28
an ellipse
3 of 5
C. 24m
D. 32m
C. 23
D. 18
29. if dy/dx = tanx, then y =
A. (1/2) tan2x + C
B.
sec2x + C
C. 1n| sec x + C
D. 1n cos x + C
30. REE-April 2019. What was the marked price of a shirt
that sells at P225 after a discount of 25 percent?
A. P280
C. P300
B. P320
D. P340
31. REE-April 2019. If the orbit of a satellite has the
polar equation r(2 + cose) = 4, then the path of the
orbit is
C. a parabola
D. a hyperbola
32. Determine B such that 3x + 2y -7=0 is perpendicular
to 2x By +2=0
Transcribed Image Text:A. 5 cm
B. 12 cm
10. Find the second derivative of xlnx.
C. 13 cm
D. 24 cm
A. X
B. 1/x.
C. 1
D. x^2
11. A car travels 90 kph. What is its speed in meter per
second?
A. 43
B. 30
12. Describe and graph the locus
A. Circle
B. Parabola
13. Sofia and Tess will each randomly choose one of the
10 integers from 1 to 10. What is the probability that
neither integer chosen will be the square of the other.
C. 0.81
D. 0.95
C. 25
D. 50
represented by Im{z^2}=4
Hyperbola
C.
D. Ellipse
A. 0.64
B. 0.72
14. Totoy is 5 feet 11 inches tall and Nancy is 6 feet 5
inches tall. How much taller is Nancy than Totoy?
A. 1 foot 7 inches
B. 1 foot
C. 7 inches
D. 6 inches
15. A man is paid P1,800 for each day he works and
forfeits P300 for each day he is idle. If at the end of
40 days, he nets P53, 100, how many days was he idle?
A. 6
C. 8
B. 7
D. 9
16.1im (cos3x 1)/x^2 as x approaches 0
A. 9/2
B. 3/2
17. Find the equation of one of the asymptote of the
hyperbola x^2 - 4y^2 6x - 8y + 1 = 0.
A. x - 2y - 5 = 0
B. x -2y + 5 = 0
D. x - 2y + 1 = 0
C. x - 2y - 1 =0
18. A parabola has its axis parallel to y-axis, one end
of its latus rectum is at (9,6) and the vertex is at
(5,4). Find the length of the latus rectum.
A. 6
B. 12
19. Evaluate (cot (j0.78))^2
A. -0.426
B. 0.426
20. A coin is tossed three times. He got three heads from
these tosses. What is the probability that he will again
get a head in the fourth loss?
A. 1/12
C. 1/2
B. 1/16
D.
1/4
21. How many inches are there in 34/3 yards?
A. 126
C. 160
B. 120
D. 168
C. -3/2
D. -9/2
C. 10
D. 8
C. -2.347
D. 2.347
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