Answer:
-625
Step-by-step explanation:
The magnitude gets raised to the power, and the angle gets multiplied by the power:
5(cis7pi/4)^4 = (5^4)cis(4·7π/4) = 625cis(7π) = 625cis(π) = -625
Answer: Yes
Step-by-step explanation:
Each value of y maps onto one value of x.
Answer:
True
Step-by-step explanation:
True because if AC = BC, then the triangles are the same.
Answer:
x = 20°
Step-by-step explanation:
The angle opposite to 3x + 20 is also 3x + 20 (opposite interior angles)
The angle opposite to 5x is also 5x (opposite interior angles)
Solve:
Set up the equation by adding all the angles. The sum of these angles should equal 360.
- (3x + 20) + (3x + 20) + (5x) + (5x) = 360
- 16x + 40 = 360
- 16x = 320
- x = 20
x = 20°
-Chetan K
Answer:
300 is the solution
Step-by-step explanation:
use the distributive property
75 * 7 = 525
75 * -3 = -225
put em together
525 - 225 = 300
