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Scorpion4ik [409]
3 years ago
15

A website charges $ 0.99 to download a game and $12.49 membership fee. Write an expression that gives the total cost in dollars

to download any number of games.
Mathematics
2 answers:
Zina [86]3 years ago
7 0
0.99+12.49x or 0.99x+12.49
cricket20 [7]3 years ago
6 0

Answer:

12.49+0.99x

Step-by-step explanation:

0.99 per game, x is the amount of games, and 12.49 is the one time membership fee

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Solve the quadratic equation 4x2 − 121 = 0. Verify your answer using a difference-of-squares factoring method.
Alenkasestr [34]

Answer:

Option d) is correct

That is x equals plus or minus start fraction 11 over two end fraction

Step-by-step explanation:

Given quadratic equation is 4x^2-121=0

To write the given quadratic equation by using a difference-of-squares factoring method:

4x^2-121=0

The above equation can be written as

4x^2-11^2=0

(2x)^2-11^2=0

The above equation is in the form of difference-of-squares

Therefore the given quadratic equation can be written in the form of difference-of-squares

by factoring method is (2x)^2-11^2=0

(2x+11)(2x-11)=0 (which is in the form a^2-b^2=(a+b)(a-b) )

2x+11=0   or   2x-11=0

x=\frac{-11}{2}    or   2x=11

x=\frac{-11}{2}    or   x=\frac{11}{2}

x=\pm \frac{11}{2}

Therefore option d) is correct

That is x equals plus or minus start fraction 11 over two end fraction

5 0
2 years ago
PLEASE HELP FAST Which of the following is a step in simplifying the expression? ​
Ainat [17]

Answer:

A

Step-by-step explanation:

i am pretty sure its A because on the top one their is one negative and all of the other one are positive.

6 0
3 years ago
Read 2 more answers
15. On the cross-country team, 7th graders
ch4aika [34]
“x = 1.15” is the answer
6 0
1 year ago
Convert the measurement 5.0 km to mi
Zigmanuir [339]

1 km = 0.621371 miles

5 km = 5 x 0.621371 = 3.106855 miles

 round off as needed.

8 0
3 years ago
Please help me!!!!!!!!
telo118 [61]

Answer:

The driver has made it far enough to reach the office

Step-by-step explanation:

1,1

5 0
3 years ago
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