Answer:
two: +1 and -1
Step-by-step explanation:
If a number is equal to its own reciprocal, it will satisfy the equation ...
x = 1/x
Multiplying by x and subtracting 1 gives ...
x^2 -1 = 0
This factors as ...
(x -1)(x +1) = 0
By the zero product rule, the solutions are those values of x that make one or more factors zero:
x = 1
x = -1
There are two self-reciprocals.
Answer:
8 hours, and 25 mins
Step-by-step explanation:
7:30 am to 11:55am= 4 hours, 25 mins
1:00pm to 4:50 pm= 3 hours, 50 mins
Add together
Answer: 8 hours, and 25 mins.
Answer:
I think 3 ,4 ,and 5 are to only correct ones
Answer:
k=20
Step-by-step explanation:
The constant of proportionality, k, measures the constant value of the ratio between two proportional quantities, being y and x in this case. Essentially, y/x will always equal 20, the constant of proportionality.
