A few more math problem

solve each system by elimination

1. 7x+y=10

-7x-10y=26

2. 4x-2y=-14

3x-2y=-14

3. 6x+2y=20

-3x+3y=-30

4. - 5x+4y=-3

-9x-4=-30

5. - 9x+6y=27

-x+3y=10

6. 5x+y=-12

5x-7y=4

What is the range of the function y = 4sin (θ - 30°) - 2? A: - 6 ≤ y ≤ 2 B: - 2 ≤ y ≤ 4 C: - 2 ≤ y ≤ 6 D: - 30° ≤ y ≤ 30°

A circle has a circumference of 12. t has an arc of length 8/5. What is the central angle of the arc, in degrees?

The coordinates of a quadrilateral are (5, 8), (7, 10), (9, 12), and (11, 14). After a transformation, the sign of the x-coordinate and the sign of the y-coordinate for each ordered pair have changed.

Whitney's steel house is located in the country. If her building property insurance is $603.50 per year, how much is her house worth?

1 Circle or write down the number in each list which is not a multiple of the first number listed. a 3, 6, 9, 12, 14, 18, 21 b 11, 22, 33, 45, 55, 66 C 21.43.63, 84, 105 d 13, 26, 40.52, 65.

6 = a/4 + 2 How to solve this problem

Wayland purchased new speakers that were on sale for 30% of the regular price. He saved $36 which is 30% off. What is the regular price of the speakers when they were not on sale?

What is the answer for 33 and 1/2 times60

Three more than 7k written in algebraic expression

A polygon of 7 line segments has __ vertices? 5 8 7 6