We have the following expressions:
x = 3 + 8i
y = 7 - i
-x * y = (- 3 - 8i) * (7 - i) = -21 + 3i - 56i - 8 = -29 -53i
2x-3y = 2 (3 + 8i) - 3 (7 - i) = 6 + 16i - 21 + 3i = -15 + 19i
-5x + y = -5 (3 + 8i) + (7 - i) = -15 - 40i + 7 - i = -8 -41i
x * 2y = (3 + 8i) * (14 - 2i) = 42 - 6i + 112i + 16 = 58 + 106i
Answer:
-x * y = -29 -53i
2x-3y = -15 + 19i
-5x + y = -8 -41i
x * 2y = 58 + 106i
Answer:
x=33
Step-by-step explanation:
Let x = # of coffee mugs sold
x * 3.50 = 115.50
Divide by 3.50 => x=33
Answer:
13
Step-by-step explanation:
use pythagorean theorem
Answer:
V=6/13.5
Step-by-step explanation:
8-8.5(v)=6v+2-v
We move all terms to the left:
8-8.5(v)-(6v+2-v)=0
We add all the numbers together, and all the variables
-8.5v-(5v+2)+8=0
We get rid of parentheses
-8.5v-5v-2+8=0
We add all the numbers together, and all the variables
-13.5v+6=0
We move all terms containing v to the left, all other terms to the right
-13.5v=-6
v=-6/-13.5
v=6/13.5
<em>I hope this helps. </em>