All categories

3 years ago

Is u = - 1/2 a solution of 8u - 1 = 6u

Mathematics

2 answers:

saul85 [17]3 years ago

6 0

Answer: No.

Step-by-step explanation: Sub -1/2 in for u in the equation:

8(-1/2) - 1 =6(-1/2)

=-4-1 = -3

-5=-3 which is false, so it is not a solution

kakasveta [241]3 years ago

5 0

Answer:

Step-by-step explanation:

Plugging in -1/2 for u:

8(-1/2) - 1 = 6(-1/2)

-4 - 1 = -3

-5 = -3 ... these are not equal

You might be interested in

What does it mean to say that a data point has a residual of 0

Elina [12.6K]

<span>It means that the point lies directly on the regression line.
</span>

4 0

3 years ago

You randomly choose one paper clip from a jar. In the jar there are 6 green, 3 white, 4 red, 2 blue, and 5 yellow paper clips.

Taya2010 [7]

Answer:

3/10

Step-by-step explanation:

Total paper clip =6+3+4+2+5

=20

Probability of green = number of green/total

= 6/20

leaving in it's lowest term

probability of green=3/20

4 0

3 years ago

What is the solution to this systems of liner equations y-x=6 y+x=-10

3241004551 [841]

The solution is the point where the two lines intersect (are equal) so y=y and we can say:

6-x=-10-x upon adding x to both sides:

6=-10

This is never true so there is no solution to this system of equations. And for this to be true the two lines must be parallel and have different y-intercepts...

3 0

3 years ago

How many solutions does 12x - 5 - 6x = -5 + 6x have

Svet_ta [14]

This problem has “Infinitely Many Solutions.”

Hope this helps!!!!

8 0

3 years ago

ind the present value that will grow to $4000 if the annual interest rate is 8.5% compounded quarterly for 9 yr.

frozen [14]

Answer:

$1876.31

Step-by-step explanation:

The present value can be found using the compound interest formula.

<h3>Present value</h3>

The formula for the future value of an investment of P earning annual interest rate r compounded n times per year for t years is ...

FV = P(1 +r/n)^(nt)

Filling in the known values gives ...

4000 = P(1 +0.085/4)^(4·9) = P(1.02125^36)

Then the amount to be invested is ...

P = 4000/1.02125^36 ≈ 1876.31

The present value is $1876.31.

4 0

2 years ago