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KiRa [710]
3 years ago
11

Suppose that 40% of households use their cell phones for their home phone. If 12 households are randomly selected, what is the p

robability that at least three use their cell phones
Mathematics
1 answer:
Vesna [10]3 years ago
4 0

Answer:

0.917

Step-by-step explanation:

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How do you write 2sin5cos5 as a single trigonomic ratio?
erastova [34]

Answer:

ertyui

Step-by-step explanation:

6 0
2 years ago
Chris earns a fixed amount of money every month. At the end of 2 years, chris had earned $86,688. He earned $ each year. He earn
dmitriy555 [2]

Answer:

Chris earned $ 43,344 each year

Monthly Chris earns $ 3,612

Step-by-step explanation:

If you earn a fixed amount of money each month, for 2 years and one year you have 12 months, then 2 years equals 24 months.

To know how much you earn each month we divide the total amount earned in the two years between 24 months

I = $ 86,688 / 24

I = $ 3,612

Monthly Chris earns $ 3,612


To calculate what he earned each year we divided $ 86,688 / 2

I = $ 86,688 / 2

I = $ 43,344

Chris earned $ 43,344 each year

6 0
3 years ago
Raul and Athena make bumper stickers. They know that their fixed costs are $145 and the cost of each bumper sticker is $2. Write
alexandr1967 [171]

Answer:

145 + 2c = X

Step-by-step explanation:

Fixed cost: 145

PLUS

2 dollars per bumper sticker (c)

After you write this out, you can put this as an actual equation.

8 0
2 years ago
Write an algebraic expression for each verbal expression. 1. the sum of k and 8
Sever21 [200]

Answer:

k + 8 = y

17 < 9(x)

4(x²-8)

Step-by-step explanation:

i hope it helps

5 0
3 years ago
13. 2 – (–8) + (–3) = <br><br> A. 1<br> B. 12<br> C. 7<br> D. 14
baherus [9]

ANSWER

C. 7

EXPLANATION

We want to evaluate

2 - (  - 8) + ( - 3)

We use the order of operations PEDMAS.

Dealing with the parenthesis first,we have

2  -  - 8+- 3

Note that:

-    -  =  +

and

-  +  =  -

Our expression now becomes:

2 + 8 - 3

Next, we add to get:

10 - 3

We finally subtract to get,

7

The correct answer is C

7 0
3 years ago
Read 2 more answers
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