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nekit [7.7K]
3 years ago
5

A person buys a phone for ​$81 and signs up for a​ single-line phone plan with 2000 monthly anytime minutes. The plan costs ​$11

9.92 per month. Write an equation that can be used to determine the total​ cost, C(t), of this phone plan for t months.​ Then, find the cost for 23 ​months, assuming that the number of minutes the person uses does not exceed 2000 per month.
Mathematics
1 answer:
Fiesta28 [93]3 years ago
3 0

Answer:

2839.16

Step-by-step explanation:

119.92(m)+81=C(t)

119.92(23)+81=C(t)

2839.16=C(t)

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Dmitriy789 [7]

Answer:

I'm pretty sure you are correct, but it is reflected over the x-axis.

Step-by-step explanation:

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3 years ago
Please<br> help 20 points
laiz [17]

Answer:

1) x ≤ -2;

2) x > 2;

3) x - 2 < 0

4) 2 ≤ x;

5)-2 < x;

Step-by-step explanation:

≤ means equal to or smaller than;

≥ means equal to or greater than;

< means smaller than;

> means greater than;

In addition, ≤ and ≥ are closed dots in the intervals. < and > are open dots in the intervals.

1) x ≤ -2; By looking at the intervals, the dot is -2, and the arrow is going to the left sides, -4, that the numbers were in a range of smaller than -2. And also because it's a closed dot, it means equal to or smaller than.

2) x > 2; The number starts in 2 with an open dot, and goes to 4, which means x in a range that greater than 2 but not equal to.

3) x - 2 < 0, we get x < 2, by plus 2 in both sides. The number starts in 2 with an open dot and goes to -4, which means x becomes smaller than 2 but not equal to.

4) 2 ≤ x; The number starts in 2 with a closed dot and goes to 4, the x is places in a number range that is equal to or greater than 2.

5)-2 < x; The number starts in -2 with an open dot and goes to 4, which means x becomes bigger than -2 but not equal to.

8 0
3 years ago
What's the supplimentary angle ?
kupik [55]

Answer:

Step-by-step explanation:

A supplementary angle is equal to 180 degrees. So subtract 96.7 degrees from 180. 180-96.7= 83.3 degrees

Your answer is 83.3 degrees.

4 0
3 years ago
Solve 2x + 5y = −13 3x − 4y = −8
zlopas [31]
If you would like to solve 2x + 5y = -13 and 3x - 4y = -8, you can do this using the following steps:

2x + 5y = -13       /*4
3x - 4y = -8         /*5
_______________
8x + 20y = -52
15x - 20y = -40
_______________
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23x = -92
x = -92 / 23
x = -4

<span>3x - 4y = -8 
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-12 - 4y = -8
12 + 4y = 8
4y = 8 -12
4y = -4
y = -1

The correct result would be x = -4 and y = -1.
6 0
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Answer:

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