Answer:
acute: D and E
obtuse: A and F
right: B
straight: C
Step-by-step explanation:
The first option is correct (-x)
Then c = 22 just keep adding 7
8+7=15 15+7=22
6 x 20 x 4 = 480 cm
the surface area is 480 cm
Answer:
(5x+1)(2x^2+1)
Step-by-step explanation:
Add and subtract the second term to the expression and factor by grouping.