Answer:
3f -9g +7
Step-by-step explanation:
(–3f – 4g + 9) – (2 – 6f + 5g)
Distribute the minus sign
(–3f – 4g + 9) – 2 + 6f - 5g
I like to line them up vertically
–3f – 4g + 9
+ 6f - 5g -2
------------------------
3f -9g +7
1) expand csc and cotx identity
(1/sinx)-sinx = (cosx/sinx)*(cosx)
2) get common denominator on the left side
(1-sin^2x)/(sinx)= (cos^2x)/sinx
3) using cos^2x+sin^2x=1 you finished
cos^2(x)/sinx= cos^2(x)/sinx
hope that helps<span />
Answer:
12x
Step-by-step explanation:
if each cake served 12 people, that would mean that each cake would have 12 servings, so you multiply 12 (X) so however many cakes there were, you know how many
Given:
(3x^4 - 2 + 8x^3 ) + (7x^3 - 6 + 7x^4 )
Add like terms together ( same variables and exponents )
3x^4 + 7x^4 +8x^3 + 7x^3 -2 - 6
10x^4 + 15x^3 - 8
Answer :
10x^4 + 15x^3 - 8