Answer:
based on my experience mind you're answer.
U use sin
sin50 = b/10
b=10(0.76)
b=7.6
Answer:
2a^4+5a^3-6a^2+19a-20
Step-by-step explanation:
(a^2+3a-4)(2a^2-a+5)
2a^4-a^3+5a^2+6a^3-3a^2+15a-8a^2+4a-20
2a^4-a^3+6a^3+5a^2-3a^2-8a^2+15a+4a-20
2a^4+5a^3+2a^2-8a^2+19a-20
2a^4+5a^3-6a^2+19a-20
The answer to this is A. 650. You find the surface area of the two cubes, then the rectangular prism, then you add them together.<span />
