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TeeKay
Questions and answers by visitors named
TeeKay
Questions (36)
A roofer must set up a 40-foot ladder against the side of a house. He sets the ladder so that the distance from the base of the
3 answers
728 views
A 21-foot ladder is leaning against a building. The base of the ladder is 7 feet from the base of the building. To the nearest
4 answers
1,077 views
Mr. Box lives on the fourth floor of a building and looks out of his window 46 feet above the sidewalk. A cat on the sidewalk
3 answers
663 views
Charlie is late for the hot-air balloon rally. He stops his car 65 meters from a hot-air balloon already in flight. While
2 answers
1,096 views
A surveyor sights the top of a building with a handheld range finder. The top of the building is 72 feet 10 inches away. The
6 answers
891 views
A carpenter makes a triangular frame by joining three pieces of wood that are 20 cm, 24 cm, and 30 cm long. What is the measure
4 answers
1,613 views
A local naturalist says that a triangular area on the north side of a pond is a turtle habitat. The lengths of the sides of this
2 answers
1,066 views
A statue is erected on a triangular marble base. The lengths of the sides of the triangle are 12 feet, 16 feet, and 18 feet.
2 answers
926 views
Alan is using the equation mg sin A = umg cos A to determine the coefficient of friction, u, between a flat rock and a metal
3 answers
1,096 views
Starting with the formula mg sin A = umg cos A, you can derive tan A = u to find the angle A of an incline and the coefficient
3 answers
543 views
Rewrite the expression 2sinθ(cosθ)(cotθ) in terms of sine or cosine.
2 answers
631 views
A simplified version of the expression 2sinθ (cos θ)(cotθ) is
2 answers
612 views
Suppose sinA = 12/13 with 90º≤A≤180º. Suppose also that sinB = -7/25 with -90º≤B≤0º. Find cos(A - B).
1 answer
497 views
Select all the true statements about identities.
A) You may use proven identities to prove other identities. B) An identity is
1 answer
661 views
Suppose sinA = 12/13 with 90º≤A≤180º. Suppose also that sinB = -7/25 with -90º≤B≤0º. Find cos(A + B).
2 answers
532 views
Suppose sin A = 12/13 with 90º≤A≤180º. Suppose also that sin B = -7/25 with -90º≤B≤0º. Find tan (A – B).
4 answers
721 views
Two pilots take off from the same airport. Mason heads due south. Nancy heads 23º west of south. After 400 land miles, how far
1 answer
459 views
Solve 4cos^2A = 3cosA for 90º≤A≤180º. (Enter only the number.)
Find A when 0º≤A≤90º and 3tan^2A = 2tanA + 1. (Enter
3 answers
670 views
Find all solutions to the equation 1 = 2cos θ.
2 answers
513 views
Solve tan2A - 2tanA = -1 for 0º≤A≤360º.
2 answers
583 views
Find all solutions to 5cosθ = 3cosθ - 1.
2 answers
538 views
Find all solutions to 7cosθ - 1 = 9cosθ.
2 answers
513 views
Suppose cosA = 12/13 with 0º≤A≤90º. Suppose also that sinB = 8/17 with 90º≤B≤180º. Find cos(A - B).
2 answers
674 views
Suppose a smooth glass-top table is tilted slowly. The angle, A, at which a glass plate on the table begins to slide is 43º.
2 answers
684 views
Use the equation mg sin A = umg cos A to determine the angle at which a waxed wood block on an inclined plane of wet snow begins
3 answers
1,859 views
Triangle PQR has vertices P(0, 1), Q(0, -4), and R(2, 5). Find the coordinates of R' to the nearest hundredth after rotating
1 answer
841 views
Find cos2A when cosA = -3/5 and π/2<A<π.
A) -24/25 B) -7/25 C) 7/24 D) 24/7
1 answer
446 views
Find tan2A when tanA = 1/3 and π<A<3π/2.
A) 4/5 B) 5/4 C) 3/4 D) 3/5
2 answers
528 views
Solve 2cos^2θ/2 = cos2θ for 0º≤θ≤360º. (Hint: Graph each side of the equation and find the points of intersection.)
A)
2 answers
697 views
Solve the equation cos2θ = 1/2sinθ 0º≤θ≤90º. (Hint: Graph each side of the equation and determine where the graphs
2 answers
850 views
How can you sketch the graph y = |x - 2| ?
A)Translate the graph of y = |x| two units up. B)Translate the graph of y = |x| two
2 answers
624 views
Which function could be the parent of y = 3|x| ?
A)y = |x| B)y = 3x C)y = x3 D)y = 3 + x
2 answers
724 views
Identify the slope of the asymptotes of 5(y -1)2 - 20(x - 1)2 =64.
A) 2 and -2 B) 64 and -64 C) 5 and -5 D) 0.25 and -0.25
1 answer
335 views
Use a graphing calculator to write a polynomial function to model this set of data
{(5,2) (7,5) (8,6) (10,4) (11, -1) (12 -3)
2 answers
709 views
The solution of the system of three inequalities is given by a polygonal convex set.
8x + 2y ≥ 36 -3x + 6y ≤ 27 -7x + 5y ≥
1 answer
634 views
Suppose person A collaborated with person B, who has collaborated with person C, who has collaborated with Paul Erdös. Suppose
2 answers
521 views
Answers (7)
Do you go to Primavera?
Are you sure it's negative?
Thank you guys! :)That really helped! I understand now!
How did you get 38? :)
A-36 B-38 C-39 D-40
Do I multiply tan75 times 46?
Yes.
