Is the inequality below sometimes, always, or never true?

-2(2x + 9) > -4x + 9

Answers

Answer 1
Answer:    -2(2x + 9) > -4x + 9
-2(2x) - 2(9) > -4x + 9
       -4x - 18 > -4x + 9
     + 4x          + 4x
              -18 > 9

It is never true.
Answer 2
Answer:

Answer:

Never True

Step-by-step explanation:


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What special marks are used to show that segments are congruent? A. midpoint B. hashmarks C. angle bisector D. arcs

Answers

The correct answer is:


B) hashmarks.


Explanation:


When two line segments are congruent, we mark this using small dashes through the segments. These dashes are called "hashmarks."

"Hashmarks" is the one special mark among the choices given in the question that are used to show that segments are congruent. The correct option among all the options that are given in the question is the second option or option "B". I hope that this is the answer that has come to your help.

De un numero se sabe que si a su cuadrado le restamos su mitad, se obtiene el mismo numero, Cuál es?

Answers

Answer:

2

Step-by-step explanation:

el 2 al cuadrado es 4 si le restas su mitad(2) tu resultado seria 2

Answer: 2

Step-by-step explanation : el 2 al cuadrado es 4 si le restas su mitad(2) tu resultado seria 2    Espero que ayude Ten un día maravilloso :)

1. How can you use an equation to make a prediction from a pattern? 2. Pizza costs $1.50 per slice. Use a table and an equation to represent the relationship between the number of slices of pizza bought and the total cost.

Answers

So for question 1, Well, using an equation to make a prediction for patterns is pretty easy, really. It is also very efficient. When you look at the pattern, you should be able to make an equation based upon the pattern, or any previous patterns, and using that, you can make an equation to solve or figure out other parts of the pattern. 


A sack contains red and blue marbles. The ratio of red marbles to blue marbles is 4:3. If there are 18 blue marbles in the sack, how many red marbles are in the sack?

Answers

r:b=4:3 \n (r)/(b)= (4)/(3) \n (r)/(18)= (4)/(3) \n r= (18*4)/(3) \n r= 6*4 \n r=24 \ red \ marbles

One year the attendance at the SuperBowl was 79,401 the following year, the attendance was 89,916 .Use words to explain the relationship between the digit 9 in 79,401 and the digit 9 in 85,916.

Answers

The 9 in 79,401 is in the thousands place and the 9 in 85,916 is in the hundreds place
The 9 in the 79 401 is in the thousand digit place value while the 9 in the 85 916 is in the hundred digit place value.

Stephanie uses a ride service to get to different places in her city. If Stephanie uses Uber the service charges 1.50 per mile . If Stephanie uses lift the service charges $2.00 per mile. Let m represent the number of miles traveled. Which of the following statements are true . Select all that apply

Answers

Answer:

By a small online search, i found that the actual question seems to be:

"Stephanie uses a ride service to get to different places in her city. If Stephanie uses Uber the service charges $5.00 plus 1.50 per mile . If Stephanie uses lift the service charges $2.00 per mile. Let m represent the number of miles traveled. Which of the following statements are true . Select all that apply"

The statements are not provided, so i will answer it in a general way.

We have two different equations:

1) a fixed amount of $5.00 plus $1.50 for each mile, m.

This is a linear equation:

y1 = $1.50*m + $5.00

2) No fixed amount, only $2.00 for each mile, m.

y2 = $2.00*m

Now, the things we can see are which service will be cheaper as a function of m.

To see this, we can see the difference between y1 and y2.

When the difference is negative, this means that y1 is cheaper.

When the difference is positive this means that y2 is cheaper.

When the difference is zero, both services charge the same.

D = y1 - y2 = $1.50*m + $5.00 - $2.00*m

                 = (-$0.50)*m + $5.00

First let's find when it is zero.

              0 =  (-$0.50)*m + $5.00

            5.00/0.5 = m = 10

So for 10 miles, both services charge the same.

As the coefficient that multipies m is negative, if we have m > 10, then the difference will be negative.

This means that for m > 10, y1 is cheaper.

Then for m < 10, y2 is cheaper.