All categories

3 years ago

If f (x) = 2x2 +5/(x-2), complete the following statement: f(6) =

Mathematics

1 answer:

Tems11 [23]3 years ago

7 0

Answer:

6.25

Step-by-step explanation:

Putting 6 in place of x we get the answer

$4x + 5 \div (x - 2) \\ 24 + 5 \div 4 \\ 27 \div 4 = 6.25$

Hope it Helps you...☺

You might be interested in

Factor the quadratic expression in the equation y=2x^2+28x+96 and use the factors to find the zeros of the equation. Then, use t

gavmur [86]

Answer:

$x=-7$

Step-by-step explanation:

We have been given an equation $y=2x^2+28x+96$ . We are asked to find the zeros of equation by factoring and then find the line of symmetry of the parabola.

Let us factor our given equation as:

$2x^2+28x+96=0$

Dividing both sides by 2:

$x^2+14x+48=0$

Splitting the middle term:

$x^2+6x+8x+48=0$

$(x^2+6x)+(8x+48)=0$

$x(x+6)+8(x+6)=0$

$(x+8)(x+6)=0$

Using zero product property:

$(x+8)=0\text{ (or) }(x+6)=0$

$x+8=0\text{ (or) }x+6=0$

$x=-8\text{ (or) }x=-6$

Therefore, the zeros of the given equation are $x=-8\text{ (or) }x=-6$ .

We know that the line of symmetry of a parabola is equal to the x-coordinate of vertex of parabola.

We also know that x-coordinate of vertex of parabola is equal to the average of zeros. So x-coordinate of vertex of parabola would be:

$\frac{-8+(-6)}{2}=\frac{-14}{2}=-7$

Therefore, the equation $x=-7$ represents the line of symmetry of the given parabola.

4 0

3 years ago

Curtis bought 4 DVDs that each cost the same amount. He had a $10-off coupon and spent $46 in all. What was the cost of each DVD

statuscvo [17]

The answer is 14 dollars because 56 divided by 4 gives 14

8 0

3 years ago

Read 2 more answers

The number of students in sixth grade is 1.03 times the number of students in seventh grade. What percent is equivalent to 1.03?

Minchanka [31]

Move the decimal to the right twice to make this into a percent:

1.03 —-> 103%

8 0

1 year ago

What is the square root of 5

Zigmanuir [339]

Answer:

2.236

Step-by-step explanation:

you could estimate it to be between 2 and 3 (because 5 is between 4 and 9)

or you just put it into a calculator

5 0

3 years ago

A nontoxic furniture polish can be made by combining vinegar and olive oil. The amount of oil should be three times the amount o

Len [333]

Answer:

V=8.5

Step-by-step explanation:

o=oil. vinegar=v. furniture polish=f

O=3v

34= 3v + v

Using a system of guessing and checking if that number fits equation you can tell that 8 causes the equation to be unequal and also 9. You can learn V must be between 8 and 9 so 8.5 might fit the equation. 8.5=V

6 0

3 years ago