Answer:
11
Step-by-step explanation:
Let's call the white marbles w and the red marbles r. We can write:
w + r = 16 (1)
w = 3r - 4 (2)
3r - 4 + r = 16 (3) (Substitute (2) into (1))
4r = 20 (simplify)
r = 5 (divide by 4) which means w = 16 - 5 = 11
Answer:
Step-by-step explanation:
g(x) = 3(x + 8).....find g(12).....what ur basically doing is subbing in 12 for x
g(12) = 3(12 + 8)
g(12) = 3(20)
g(12) = 60 <===
Answer:
65 + 13i
Step-by-step explanation:
reminder that i² = - 1
13i(1 - 5i) ← multiply each term in the parenthesis by 13i
= 13i - 65i²
= 13i - 65(- 1)
= 13i + 65
= 65 + 13i ← in standard form
