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A trigonometry problem (multiple choice) no guesses please!?
Write the equation for cosine for the given data: amplitude=15, period=4Pi;
phase shift=Pi/2; vertical shift= - 10. Identify k.
Hint: use formula y= A cos (kØ + c) + h.
Choices
A. 4
B. 5
C. 3
D. 6
2 Answers
- heynerLv 44 years ago
i placed isosceles triangles too. listed right here are the solutions for area 2, 3 and four: 29 20 the two a million/2 of the edge of the large triangle or upload a million/2 the lengths of the two factors 30 3 arcs had to construct a perpendicular from a factor no longer on the line 31 y = -2x+14 32 2 X for intersections of locus, perpendicular bisector a million.5? from each and each endpoint and a circle with radius 2? from A 33 authentic, disjunction is authentic if any area is authentic 34 20 set 2 congruent angles equivalent to a minimum of one yet another and sparkling up for x 35 SE = 18 in view that tangent from the comparable factor are congruent, x+3x=24, x=6 and 3x=18 36 15 + 5 radical 5 , use 3 distance formula(pythagorean Theorem) 37 A(0,-a million) B(-5,2) C(-6,-a million) D(-a million,-4) 38 Vertical angles are congruent, midpoint cuts a piece into 2 congruent segments, SAS , CP in congruent triangles are congruent, If commerce indoors angles are congruent, then the lines are parallel.
- ?Lv 71 decade ago
the proper formula for the cosine you require is:
y = 15 cos(x/2 - pi/2) - 10
so k = 1/2 = 0.5, which i do not see among the choices.
