Find the value of the csc 40° using your calculator. . 1.342 . 0.745 . 1.556 . 0.643 .

Write a function for a rotation 90 degrees counter clockwise about the origin, point 0

Serena is making an experiment. for that, she needs 20 grams of a 52% solution of salt. she has two large bottles of salt water: one with 40% and the other with 70% of salt in them. how much of each must she use to make the solution she needs? i am in need of

X^2/100+y^2/25=1 the length of the major axis is: a)5 b)10 c)20