Simplify the following expression, 4.2x+4.7=18.6

Four angles of a pentagon are equal and the fifth is 60°. Find the equal angles and show that two sides of the pentagon are parallel. I have found the angles and I just want to know how to show that two sides are parallel.

7a^2+2a=5 how to solve?

Solve the system of equations. 8y-9x = - 3 5y-8x=10 answer in (x, y) form

Which expression has a value of 10 A. 3√13 B.√5 C. 3√30 D.√100 All the numbers before the square root are powers

James's sister is 4 years younger than James. Their combined Ages add up to 33. How old is James?

The difference of 17 and 5 tines a number

2476080: 2 com contas

Which of the following sets of numbers could not represent the three sides of a right triangle? {5,8, 10} {12, 35, 37} {12, 16, 20} {33, 56, 65}

The probability of getting disease X (event A) is 0.65, and the probability of getting disease Y (event B) is 0.76. The probability of getting both disease X and disease Y is 0.494. Are events A and B dependent or independent?

the load capacity of a certain washing machine is 12 pounds. what is the approximate load capacity of the same washing machine, in kilograms?