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SSSSS [86.1K]
3 years ago
13

1. Which value is a solution of the equation 3-2x=-5?

Mathematics
1 answer:
Alex787 [66]3 years ago
4 0
Answers:

1) B:  4
________________
2) D: (5,2) .
___________________________________
3) D: (-2, -10).
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You buy a lottery ticket to a lottery that costs $10 per ticket. There are only 100 tickets available to be sold in this lottery
riadik2000 [5.3K]

Answer:

Loss of $1.20

Step-by-step explanation:

The possible outcomes for this lottery and their probabilities are:

- a 1 in 100 chance of winning $450

- a 2 in 100 chance of winning $120

- a 4 in 100 chance of winning $30

- a 93 in 100 chance of losing $10

Therefore, the expected value of this lottery when buying one ticket is:

E(X) = \frac{1}{100}*\$450+ \frac{2}{100}*\$120+ \frac{4}{100}*\$30-\frac{93}{100}*\$10 \\E(X) = -\$1.2

Therefore, you are expected to lose $1.2 per ticket.

3 0
3 years ago
Tony bought a car for $1150. It needed some work so Tony spent $740 in repairs. He sold it once his repairs were complete for $3
dalvyx [7]

Answer:

It would be a profit of $1,310

Step-by-step explanation:

8 0
3 years ago
James types 90 words in 2 minutes. At this rate, how many words can James type in 15 minutes?
andre [41]
It would probably be 675 cause i did it and got that
5 0
2 years ago
Read 2 more answers
What is the range of the function f(x) = -2(6^x) + 3?
Naddika [18.5K]

Answer:

(-∞,3)

Explanation:

6 0
3 years ago
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Simplify -|-7 + 4|.<br><br> -11<br> -3<br> 3<br> 11
myrzilka [38]

|a| = -a for a < 0

|a| = a for a ≥ 0

examples:

|-1| = -(-1) = 1; |-4| = -(-4) = 4; |-0.1| = 0.1; |-109| = 109

|7| = 7; |19| = 19; |0| = 0

- |-7 + 4| = - |-3| = - (3) = -3

Answer: -|-7 + 4| = -3

3 0
3 years ago
Read 2 more answers
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