Find cos (pi/2-theta), if sin theta = 0.45

During a nature walk jill identified 20 species of animals n plants jill said that 1/3 rd of the specie s she identified where animals can this be correct explain

rectangle QRST has vertices Q (3,2) R (3,8) S (7,8) and T (7,2). What is the perimeter of the rectangle?

Mrs. Sahd distributes pencils and papers to students in the ratio of 2 pencils to 10 sheets of paper. Three of these ratios are equivalent to 2/10. which one is not? a. 1/5 b. 7/15 c. 4/20 d. 8/40?

If the resistance of one component of a series circuit is 3+j5 ohms, and the resistance of the second component of the circuit is 5-j8 ohms, and the resistance of the third component of the circuit is 6+j4 ohms, what is the total resistance in the

The dimensions of the base of Box 1 are x by 3x. The base area of Box 1 is: 3x 3. x2 3r3 4x

Solve for q. -15 - 18q = - 20q + 15 q =

Represent the proportional relationship described with an equation where d equals dogs and c equals cats: three dogs for each cat

Ou can draw a quadrilateral with two sets of parallel lines and no right angles. a. True b. False

There are 8 candidates for student government: Hal, Mary, Ann, Frank, Beth, John, Emily, and Tom. The three candidates that receive the highest number of votes become candidates for a runoff election. How many 3-candidate combinations are possible?

If n=1 and m=3 then n^2=2 and m=6 what is wrong with this question