Answer: b
Step-by-step explanation: a right triangle should have a right angle so you´d need atleast one right angle and two acute angles.
Answer: Functions are sets of associates to every element. A good example is from integers to number.
3p + 34 = 90
3p = 90 - 34
3p = 56
p = 56/3
p = 18.67 (thats rounded)
2r + 44 = 76
2r = 76 - 44
2r = 32
r = 32/2
r = 16
53 + 6s = 1421
6s = 1421 - 53
6s = 1368
s = 1368/6
s = 228
" the product " means multiply
p x r x s = 18.67 x 16 x 228 = 68,108.16
12 - 3 =9 and -5i+4i=1i or i so it is {9-i}
