Answer 1: Move the -7 over to the right side of the problem.
Answer 2:

Answer 3:

Answer 4: Use the square root for both sides of the equation.
Answer 5: x = -3 <span>± 4 = 1, -7 --> x = 1, -7</span>
Answer:
9th grade student=33.3%, unit 7=45%
Step-by-step explanation:
Answer:
70°
Step-by-step explanation:
Size of angle a = (180°-40°) ÷ 2 (angle sum of triangle; base angles of isos triangle)
= 140° ÷ 2
= 70°
Answer:
0.714286
Step-by-step explanation:
yes
Answer:
80?
Step-by-step explanation:
the total amount of degrees in a hexagon is 720. Divide that by 6 and you get 120. Each corner is 120. It doesnt have a right angle measure on it so it has to be lowerer then 90.