Answer:
Step-by-step explanation:
1) Solve the equation: [4ax - (a + b)](a + b) = 0, where a and b are constants.
- if a + b = 0, then x has infinitely many solutions
or
- 4ax = a + b
- x = (a + b)/4a, a≠0
2) Solve the equation m²x + 1 = m(x + 1), where m is a parameter.
- m²x + 1 - mx - m = 0
- (m²- m)x = m - 1
- m(m - 1)x = m - 1
- mx = 1
- x = 1/m, m≠0
3) Given that the equation a(2x - 1) = 3x - 3 has no solution, find the value of the parameter a.
- a(2x - 1) = 3x - 3
- 2ax - a = 3x - 3
- 2ax - 3x = a - 3
- (2a - 3)x = a - 3
- x = (a - 3)/(2a - 3)
<u>The equation has no solution if:</u>
Answer:
826.8 hours
Step-by-step explanation:
Given data
Lenght of video= 234minutes
number of times watched= 212 times
Based on the information given, we can estimate the number of hours spent watching the video
=234*212
=49608 minutes
in hours
=49608/60
=826.8 hours
in days
=826.8/24
=34.45 days
D will be the answer shifter left 1 point
Answer:
2.5 times
Step-by-step explanation:
To compare the two quantities, find a common denominator.
1/5 is 2/10 of sugar.
1/2 cup of flour is 5/10 of flour.
There is almost 3 times as much flour as sugar. 5/ 2 = 2.5. It is 2.5 times as much.
9 + x > (equal to or greater than) 15
6 more students need to sign up because 15-9=6
