MATHEMATICS
COLLEGE

–2x

1/2x

–1/2x

Answer: If x = -b/2a, then 2a = -b / x so a = -b / 2x or a = b / -2x

So the denominator is -2x because it has to take the minus sign that the numerator refused to take ;-)

So the denominator is -2x because it has to take the minus sign that the numerator refused to take ;-)

Answer:

The answer is B on edgen.

MIDDLE SCHOOL

If f(x) = 4x - 2, what is the y-intercept of f^-1 (x)?

1/4, 1/2, -1/2, -2

The y-intercept is .

Given that f(x) = 4x-2.

To find the inverse function:

1) Write f(x) = y

2) Switch x and y.

3) Solve for y.

4) Write .

So,

Comparing this with y=mx+b,

b = y-intercept =

Learn more: brainly.com/question/12220962

Answer:

1/2

Step-by-step explanation:

MIDDLE SCHOOL

Which expression is equivalent to ^3√216x^27? 6x3 6x9 72x3 72x9

To solve this problem you must apply the proccedure shown below:

1. You have the following expression given in the problem above:

2. Rewriting the expression we have:

3. You have that and the exponent are divisible by index . Therefore, you have:

Therefore, as you can see,

the answer is the option, which is:

1. You have the following expression given in the problem above:

2. Rewriting the expression we have:

3. You have that and the exponent are divisible by index . Therefore, you have:

Therefore, as you can see,

the answer is the option, which is:

Answer:

b

Step-by-step explanation:

MIDDLE SCHOOL

Which three of the following are correct 1/5 < 1/4

2/3= 5/9

1/3 = 2/6

3/4> 6/10

2/3 > 4/5

Get common denominators on the fractions in each expression

The first = true

The second = false

The third = true

The fourth = true

The fifth = false

Therefore, 1. 3. 4. are all true.

The first = true

The second = false

The third = true

The fourth = true

The fifth = false

Therefore, 1. 3. 4. are all true.

MIDDLE SCHOOL

Michaela pays her cell phone service provider $49.95 per month for 500 minutes. Any additional minutes used cost 0.15 each. In June, her phone bill is $61.20. How many additional minutes did she use?

$61.20=$49.95+$0.15M

$11.25=$0.15M

75=M

ANSWER: She used 75 additional minutes.

$11.25=$0.15M

75=M

ANSWER: She used 75 additional minutes.