Me right now or i'll lose !

1. which of the following sets of angle measures can be used to draw an acute isosceles triangle? select all that apply.

80°, 80°, 40°
60°, 60°, 60°
20°, 140°, 20°
50°, 50°, 80°
75°, 30°, 75°
80°, 55°, 45°

2. two sides of a triangle are 5 centimeters and 6 centimeters. what is the range of possible lengths for the third side? explain your reasoning using complete sentences.

Idont understand math at all! : o( use this scenario to answer the remaining questions: brenton purchased a new bedroom set for $4,500.00. he lives in arizona and pays a 8.75% sales tax. if he made a 50% down payment and financed the rest, what amount did he finance? what is the total sales tax brenton will pay? enter your answer in currency format, round to the nearest cent. what was brenton's total amount financed? enter your answer in currency format, round to the nearest cent.

Which radical expression is a rational number? a. √ 360 b. √ 644 c. √ 225 d. √ 122

The input to the function is x and the output is y. write the function such that x can be a vector (use element-by-element operations). a) use the function to calculate y(-1.5) and y(5). b) use the function to make a plot of the function y(x) for -2 ≤ x ≤ 6.