Step-by-step explanation:
When x = 4,
9x=9×4=36
When x = 7,
9x = 9×7 =63
When x = 2.5
9x = 9×2.5 = 23.5
PLEASE GIVE BRAINLIEST.
Answer:
308[cos(45) + isin(45)]
Step-by-step explanation:
z1×z2:
Modulus: r1 × r2
= 7×44 = 308
Argument: theta1 + theta2
= -70 + 115 = 45
z1z2 = 308[cos(45) + isin(45)]
Or
z1z2 = 154sqrt(2) + (i)154sqrt(2)
sqrt: square root
Answer:
80 degrees
Step-by-step explanation:
Do 90 plus 10.
The do 180 minus 100
because a triangle adds up to 180
it is a have a great day xoxoxoxoxoxo