Answer:
x = 8 ± 2i√2
Step-by-step explanation:
√-1 is imaginary number i
Step 1: Write equation
(x - 8)² = -8
Step 2: Solve for <em>x</em>
- Square root both sides: x - 8 = √-8
- Factor out negative: x - 8 = √-1 · ±√8
- Simplify: x - 8 = ±i2√2
- Add 8 to both sides: x = 8 ± 2i√2
1,440 is the answer i learned lcm last friday
9514 1404 393
Answer:
Step-by-step explanation:
In order to solve this, we need to assume that the angles involving x are supplementary, and the angles involving y are complementary.
(7x -8) +(13x -32) = 180
20x -40 = 180 . . . . . . . . . collect terms
20x = 220 . . . . . . . . . add 40
x = 11 . . . . . . . . . . divide by 20
__
(10y +22) +(7y) = 90
17y = 68 . . . . . . . . . . . . collect terms, subtract 22
y = 4 . . . . . . . . . . divide by 17
The rate of this would be 11 sit ups because 55 divided by 5 would give you the answer 11
