Explain how to find tan θ if sec θ =√(42)/6 and sin θ < 0.

what are the half-angle identities?

how do the sum and difference formulas for sine differ from cosine?

Lindsay is creating a bridge out of dried pasta and glue. in her plans, she sketches the graph to determine the lengths of the noodles, in centimeters, needed for the arch to increase the length of the bridge in 1 centimeter increments. which function did lindsay use to create her design? f(x) = (x – 5)2 + 8 f(x) = –(x + 5)2 + 8 f(x) = 0.5(x + 5)2 + 8 f(x) = –0.5(x – 5)2 + 8

Can somebody me out with this question

Segment xz is bisected by point y. if xy = 12x, and the measure of xz = 18x – 6, solve for x