Hi does anyine know how to find the angle for this ?Please show working out.

X=30⁰

Step-by-step explanation:

Cos(x)=(s(6)+2×s(3))/(4+2×s(2))

Where s(..) = sqrt(..))

Cos(x)=s(3)×(s(2)+2)/(2×(2+s(2))=s(3)/2

Thus: x=30⁰

10a^3+277a^2-132a-792

step-by-step explanation:

(2a+11)(5a-12)(foil)

=10a^2-24a+55a-132 =10a^2+31a-132

(10a^2+31a-132)(a+6)

=10a^3+60a^2+31a^2+186a^2-132a-792 =10a^3+277a^2-132a-792

i hope this is what you are looking for : )

1. d.90

2. e. none of these (80)

3. a. 0

4. b. 6

5. e. none of these (10)

6. a. 5