All categories

3 years ago

What is the value of the rational expression below when xis equal to 4?

Mathematics

1 answer:

Gekata [30.6K]3 years ago

7 0

Answer:

12 + 4 = 16

4 + 4 = 8

16 and 8

You might be interested in

Mason is purchasing wooden blocks to build a birdhouse. Each block costs $1.80, and Mason wants to spend less than $36. Which in

DaniilM [7]

Answer:

Step-by-step explanation:

At most he cannot spend 36 dollars so 36/1.8=20 but he cannot spend more than 35.99 so it is C

4 0

3 years ago

The length of a rectangular mural is 2ft. more than three times the width the area is 165 sq. ft. Find the Width And Length

olga nikolaevna [1]

We know that the formula for the area of a rectangle is:

$A=lw$

We know that the area is 165. Now we need to solve for the dimensions.

Let the width of the rectangle be " $x$ "

Then the length of the rectangle is $3x+2$

Substitute.

$(3x+2)(x)=156$

Multiply the terms.

$3x^2+2x=156$

Bring the 156 over.

$3x^2+2x-156=0$

We have to use the quadratic formula to solve this now. Let us restate it:

$x= \frac{-b± \sqrt{b^2-4ac} }{2a}$

Now I'm going to fast forward this because all the rest is boring stuff and substitution. The answer is:

$\frac{ \sqrt{469}-1 }{3}$

Since we cannot have a negative answer, we must cancel out the other answer, which I did not include.

Hope this helped! :)

~Cam943, Junior Moderator

5 0

4 years ago

Read 2 more answers

Just look at the pic for the question

Shalnov [3]

Answer: C

Step-by-step explanation:

8 0

3 years ago

Which statement holds true for absolute value functions? A) The absolute value determines the direction in which the graph opens

egoroff_w [7]

The <u>correct answer</u> is:
D) the vertex coordinates and the absolute value determine the region of the graph on the plane.

Explanation:

The vertex coordinates of an absolute value function determine how far the graph is shifted vertically and horizontally from the origin, as the vertex of the parent graph y=|x| is the origin (0, 0).

The coefficient in front of the absolute value bars determines which direction the graph opens up in as well as how wide or narrow the bars are (the distance between the arms). If the coefficient is positive, the graph opens upward; if the coefficient is negative, the graph opens downward. If the coefficient is an integer greater than 1 or less than -1, then the graph will be more narrow than the parent graph; if the coefficient is a fraction, then the graph will be wider than the parent graph.

Since the vertex affects the position and the coefficient determines the direction it opens up, these determine the region of the graph on the plane.

8 0

3 years ago

Read 2 more answers

Need help ... ??????????

DochEvi [55]

Answer:

what is the quistion

Step-by-step explanation:

6 0

3 years ago