Answer:
45
Step-by-step explanation:
Answer: Your answer is 0 (F.O.I.L) first. outer. inner. last. Or you could use what my teacher calls the magic box
Step-by-step explanation:
So for the boxes you multiply for example the top left box you multiply the 9 above it and the 9 to the left or like the top right box you multiply the -9 above it and the 9 on the outside of the box to the left
Answer:
65
Step-by-step explanation:
let's place 9 in place of p and 4 in place of q. I will use a star in place of that symbol for the sake of my convenience having to look for it, apologies.

Step-by-step explanation:
find the value of sec X/3
<span>6.4u−5.1u=−3.25
Simplify
1.3u = -3.25
Divide both sides by 1.3
1.3u/1.3 = -3.25/1.3
Simplify
u = -2.5</span>