Cosine = adjacent/hypothenuse
Adjacent = 28
Hypothenuse = 35
Solution: 28/35
The second question is (x-5)(2x+7)
Answer:
His profit is 105 rs
Step-by-step explanation:
if he bought 7 books for 525 RS,that means 1 book costs 75 rs
if he sold 4 books for 360 RS,that means 1 boo costs 90 RS
90×7=630.
630-525=105
I can't see a square or a D given with your question.
But to find the perimeter you just have to add the surface of every side of the square.
Answer:
(5 - 7i)(8 + i)
F) 40 - 561
H) 37 - 371
K) -16 - 2i
G) -33 - 61i
J) 47 - 51i
- 9 below
Step-by-step explanation: