My guy just did 30 divided by 2 = 10

Which of the following functions have only one point that is not in the domain? Select all that apply. (There are 2 answers)

densk [106]

Answer:

B. f(x) = 3/(x^2 +2x +1)

E. f(x) = 5/(3+x)

Step-by-step explanation:

The above functions have denominators that are zero at one point. For B, that point is x=-1; for E, that point is x=-3. When the denominator is zero, the function is undefined, so the corresponding x-value must be excluded from the domain.

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As written, choice D also qualifies. This is because the function written in the answer list here is ...

$f(x)=\dfrac{1}{x^2}+5x+4$

It will be undefined for x=0.

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<em>Comment on writing rational functions</em>

When the division symbol (/ or ÷) is used with a denominator that is a product or sum, that product or sum must be enclosed in parentheses. When the expression is typeset, the division bar acts as a grouping symbol. When the expression is written in text, a grouping symbol, such as parentheses, must be added.

3 0

3 years ago

First part of my assignment check my other for the two other questions that go with

ad-work [718]

Answer:

Step-by-step explanation:

Remark

I hope you don't mind if I laughed a little at the graph. The y intercept of the line is at 10 dollars, but the rental car has not moved an inch. I guess they're charging you to look at your driver's license. It's late, and maybe I am a little giddy.

Begin by using a ruler (or some other straight edge) to join all the dots.

a) I'll spend a little time here. It is very important that you know how to read a chart and this question is your first step. The question is how many dollars does it take to go 40 miles? There is a system. Start with the 40 miles on the horizontal axis (x axis if you know that that is).

Use a ruler to go straight up until you hit the line.

When you hit the line, mark the place.
Now move straight across until you hit the y axis where you find out the money.
You should get 30 dollars.

b) This question is a guess.

You can find the 70 dollars easily enough. Go straight up again until you hit the line.
Mark the point on the line.
Go straight across again.
Not so easy. It isn't marked. You have to make a guess. My guess is 45. What do you think?

c) This question is the exact reverse of the other two.

This time you start with the amount of money
So you start at 60 dollars and go straight across until you hit the line.
Mark the point.
Now take your ruler and go straight down.
You should hit 100 miles.

4 0

3 years ago

Jeremy rode his bicycle in a race. He averaged 15 mph and began the race 1 hour ahead of the other riders. The variable d repres

alekssr [168]

D = 15(t + 1)

Explanation:
It would be t + 1 rather than t - 1 because he has one *more* hour compared to the other riders.
The reason why t + 1 is in parentheses is because when solving, you'd have to first add instead of multiply.

4 0

4 years ago

Read 2 more answers

The sum of two times a number and 5 is 11

Alika [10]

So it can be written as 2x + 5 = 11, and x = 3

5 0

3 years ago

PLEASE HELP!! 10 POINTS!!WILL MAKE BRAINLIEST

Grace [21]

58): Solution =====> Letter Choice, (C) 1.25m = 1.50(m - 2)

Let's solve your equation step-by-step.

1.25m = 1.5(m − 2)

Step 1: Simplify both sides of the equation.

1.25m = 1.5(m − 2)

1.25m = (1.5)(m) + (1.5)(−2) (Distribute)

1.25m = 1.5m + −3

1.25m = 1.5m − 3

Step 2: Subtract 1.5m from both sides.

1.25m − 1.5m = 1.5m − 3 − 1.5m

−0.25m = −3

Step 3: Divide both sides by -0.25.

-0.25m/ -0.25 = -3/ -0.25

m =========> 12

Answer ===========> m = 12

59): Let your Number be: D

Solution: =====> 7D = 5D - 3 =====> -3/2 =====> -1.5

Seven Times a number:

7 * D or 7(D)

Three Less than Five Times that Number:

5D - 3

7D = 5D - 3

Solve for D:

7D = 5D - 3

Subtract 5D from both sides:

7D - 5D = 5D - 3 - 5D

2D = -3

Divide both sides by 2:

2D/2 = -3/2

D = -3/2

Answer ==> D ====> -3/2 ========> Letter Choice, (F) - 1.5

60): Letter Choice, (C), 3x - 9 = 5x

Let's solve your equation step-by-step.

3x − 9 = 5x

Step 1: Subtract 5x from both sides.

3x − 9 − 5x = 5x − 5x

−2x − 9 = 0

Step 2: Add 9 to both sides.

−2x − 9 + 9 = 0 + 9

−2x = 9

Step 3: Divide both sides by -2.

-2x/ -2 = 9/ -2

x = -9/2

Answer ========> x = -9/2 =======> 4.5

61): Subtract:

500 - 120

= 380

Need to total 500:

380

Find Number of Weeks Divide:

380/20 = 19 Weeks

7 * 19 = 133

Days it will take Nichole to save $500.00 =======> 133 Days

62): Gridded Response:

Solve:

- 2(x - 1 ) + 5x = 2(2x - 1 ) ======> x = 4

( -2 )(x) + ( -2)( - 1 ) + 5x = (2)(2x) + (2)( - 1 )

Distribute:

- 2x + 2 + 5x = 4x + - 2

( - 2x + 5x ) + (2) = 4x - 2 (Combine Like terms):

3x + 2 = 4x - 2

Subtract 4x From both sides:

3x + 2 - 4x = 4x - 2 - 4x - x + 2 = -2

Subtract 2 from both sides:

-x + 2 - 2 = -2 - 2

-x = -4

Divide both sides by -1:

-x/ -1 = -4/ -1

x = 4

Answer =====> x = 4 Check the Graph down below for Gridded Response on Number 62.

Hope that helps!!! : ) _P_

6 0

3 years ago