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koban [17]
3 years ago
9

A cell phone company offers service for a flat rate of 20$ per month,plus 3 cents a minute. Which expression could represent the

monthly cost of this cell phone service?
Mathematics
1 answer:
ElenaW [278]3 years ago
4 0

Answer:

20 + 3x = x

Step-by-step explanation:

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If x=9 when y=36 and x is directly proportional to y what is x when y=6
melamori03 [73]

Answer:

.fnm k.v tkr vijt 3ogubt4er giutbgo6jgn43o4goujgnogno'itng'

Step-by-step explanation:

3 0
2 years ago
In how many different ways can a jury of 12 people be randomly selected from a group of 40 people?
kupik [55]

Answer:

There are 5,586,853,480 different ways to select the jury.

Step-by-step explanation:

The order is not important.

For example, if we had sets of 2 elements

Tremaine and Tre'davious would be the same set as Tre'davious and Tremaine. So we use the combinations formula.

Combinations formula:

C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

In how many different ways can a jury of 12 people be randomly selected from a group of 40 people?

Here we have n = 40, x = 12.

So

C_{40,12} = \frac{40!}{12!(28)!} = 5,586,853,480

There are 5,586,853,480 different ways to select the jury.

3 0
3 years ago
How much time has passed?
Drupady [299]

Answer:

2 hours 40 minutes

Step-by-step explanation:

If you add 3 hours, it will be 7:45

You subtract 20 minutes to get to 7:25

3 hours - 20 minutes = 2 hours 40 minutes

6 0
2 years ago
Read 2 more answers
In the right triangle below, tanA = 0.45. What is the approximate length of AB?
kodGreya [7K]

Answer with Step-by-step explanation:

We are given that:

tanA = 0.45

tanA= \dfrac{Perpendicular}{Base}

      =  \dfrac{BC}{AC}

⇒  \dfrac{BC}{AC}=0.45

⇒  \dfrac{9}{AC}=\dfrac{45}{100}

⇒  \dfrac{9}{AC}=\dfrac{9}{20}

⇒  AC= 20

Hence, by pythagoras theorem

AB²=AC²+BC²

AB²=20²+9²

AB²=481

⇒  AB=21.9 units

Hence,  the approximate length of AB is:

22 units

7 0
3 years ago
Read 2 more answers
Please help meee worth 10 pts
maxonik [38]
The answer is:
3.     C
4.     A
Hope this helps!
5 0
3 years ago
Read 2 more answers
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