When you’re finishing the power of a power, you multiply (ex. (x^2•y^3)^3 will become (x^2)^3 • (y^3)^3 = x^6 • y^9
Answer:
The factors of the polynomial are x = ± 
Step-by-step explanation:
consider x⁴ - 36 = 0
(x² - 6) (x² + 6) = 0
x² = 6 and x² = -6
∴ x = ±
The factors of the polynomial are x = ±
Answer:
24.56 minutes
Step-by-step explanation:
68,700 - (625 * x) = 53,350
We subtract 53,350 from both sides
15,350 - (625 * x) = 0
625x = 15350
x = 15350/625
x = 24.56
He needs to wait 24.56 minutes to get his car.
Answer:
(D) xy/(x + y)
Step-by-step explanation:
To find r in terms of x and y
Given,
- two resistors with resistances x and y are connected in parallel
- r is the combined resistance of these two resistors
- the reciprocal of r is equal to the sum of the reciprocals of x and y
Then,
1/r = 1/x + 1/y
1/r = (y + x)/xy
Find the reciprocal of both sides
r = xy/(x + y)
The right answer is option (D) xy/(x + y)
