Question

Help on math questions?
1. Three of the angles in a quadrilateral are 85°, 100°, and 80°. What is the measure of the fourth angle?
A) 80°

B) 85°

C) 95°

D) 100°

2. What is the range of f(x) = -x^2 + 4, if the domain is {2,0,1}?
A) {0,4,3}

B) {0,4,5}

C) {8,4,3}

D) {8,4,5}

3. a. Multiply the radius by 2 to find the diameter.
b. Multiply the diameter by π.
c. Measure the radius of the lid.
Which is the correct order to find the circumference of a circular lid?
A) c, a, b

B) a, b, c

C) b, a, c

D) c, b, a

Answer 1

in a quadrilateral, the angles will add up to 360, so 360-85-100-80=95, and for three im pretty sure it should be c,a,b