<u>Answer</u>
0
<u>Explanation</u>
(2m)/(2m+3)-(2m)/(2m-3)=1
Simplifying the left hand first
(2m)/(2m+3)-(2m)/(2m-3) = {2m(2m-3) - 2m(2m+3)}/(4m²-9)
(4m²-6m-4m²-6m)/(4m²-9)
= (-12m) / (4m²-9)
Now this equet to 1
(-12m) / (4m²-9) = 1
-12m = 4m²-9
4m²+ 12m -9 =0 ⇒⇒⇒ This is a quadratic equation that has 2 real solutions.
4m²+ 12m -9 =0
m² + 3m + (3/2)²= 9/4 + 9/4
(m + 3/2)² = 18/4
m = √18/2 - 3/2 or m = -√18/2 - 3/2
= 0.621 = -3.621
So we can say that the equation has NO extraneous solutions.
Answer = 0
A + C = 90/190
B + D = 100/190
Therefore answer is H
Answer:
The location will be at
units.
Step-by-step explanation:
A scuba diver descended at a rate of
units per second.
Now, if 0 represents the surface of the water and distances below the surface are negative, then after
seconds the location of the diver will be given by the followings :
In one second the diver descends by 2.25 units depth.
So, in 12.5 seconds the diver will descend by
units i.e.
units depth.
Therefore, the location will be at
units. (Answer)
Answer:
47 13/21
Step-by-step explanation:
Given
11 1/9 x 4 2/7
First change the fractions to improper fractions.
We have ,
100/9 x 30/7
Multiply through
3000/63
Divide the numerator and denominator by 3
1000/21
47 13/21