Which of the following statements is true?

a. sin 18° = cos 72°

b. sin 55° = cos 55°

c. sin 72° = cos 189

d. Both a and c.

Will give brainliest: what is 1 + 10 + 2 + 4 + 5 + 6 + 7 + 9 + 8 + 3 - 0 show full work

Maria has 14 feet of wire to use to make necklaces she needs to know the length in inches so she can't determine how many necklaces to make how many inches of wire does marta

Solve for y. Then find the values of y that correspond to the given values of x for the linear function. y + 8x = - 2 for x = 0, 1, 2

An architect creates a scale model. The volume of the scale model is 0.1 cubic meters. The volume of the real-world building is 100,000 cubic meters. What is the ratio of corresponding sides from model to real world?

Nurse aide Jane, was assigned to take vital signs on 5 patients. She started at 7:25am. It took her 10 minutes for the first patient, 12 minutes for patient 2, and 8 minutes for the third patient.

Write a whole number and a fraction greater than 1 to name the part filled. th

Factor the polynomial completely. 2x2 + 8x - 3 A) (x - 3) (x + 1) B) (2x + 1) (x + 3) C) (2x - 3) (x + 1) D) cannot be factored

Solve the following equation. 4 + 2y = 9 + 2y A. 4 B. - 4 C. infinitely many solutions D. no solution

Which algebraic expression is a polynomial with a degree of 5? a) 3x5 + 8x4y2 - 9x3y3 - 6y5 b) 2xy4 + 4x2y3 - 6x3y2 - 7x4 c) 8y6 + y5 - 5xy3 + 7x2y2 - x3y - 6x4 d) - 6xy5 + 5x2y3 - x3y2 + 2x2y3 - 3xy5

Add. (-3a^2+4a-6) + (-a^2-9)