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Lisa [10]
3 years ago
14

Help help help math math

Mathematics
1 answer:
solniwko [45]3 years ago
6 0

Answer:

y=-1/2x-3

Step-by-step explanation:

Let's pick two points for slope.

\frac{-1+3}{-4-0}

\frac{2}{-4}

For the y-inctercept, the line intersect at the y-axis at (0,-3)

CHECK:

y=-\frac{1}{2} (-4)-3

y=2-3

y=-1

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A driver and a passenger are in a car accident. Each of them independently has probability 0.3 of being hospitalized. When a hos
kompoz [17]

Answer:

0.534

Step-by-step explanation:

p(0 losses) = 0.7² = 0.49

p(1 loss) = 2 x 0.3 x 0.7 = 0.42

p(2 losses) = 0.09

This is a conditional probability problem. If the number of people hospitalized is 0 or 1, then the  total loss will be less than 1. However, if two people are hospitalized, the probability that the  total loss will be less than 1 is 0.5. we need to exclude the 50% x 0.09 chance of a double loss costing more than 1. So

P(Cost < 1)

= 0.49 + 0.42 +0.045

= 0.955

P(0 losses | Cost < 1)

= P(0 losses and Cost < 1) / P(Cost < 1)

= 0.49 / 0.955 = 0.513

P(1 loss | Cost < 1)

= 0.42 / 0.955 = 0.440

P(2 losses | Cost < 1) = 0.045 / 0.955 = 0.047

Now take the expectation:

E[X] = (0)(0.513) + (1)(0.440) + (2)(0.047)

= 0.440 + 0.094

= 0.534

5 0
3 years ago
X+22=10 what is the answer to this equation
Ronch [10]

Answer:

-32

Step-by-step explanation:

you have to be in the negatives because 22 is bigger than 10.

Tip that will save you time:

when you have an equation like this just add the two numbers together and then add a negative sign :D

22+10= 32

-32

4 0
3 years ago
Read 2 more answers
Find a8 of the sequence 10, 9.75, 9.5, 9.25.......
melomori [17]

The answer to a8 of the sequence will be 8. I found this out by multiplying the subtraction value (.25) by the number in the sequence needed (8) to get 2. Then, I subtracted the starting number with 8 to get 8 (10-2 = 8). Hope this helped :)

4 0
3 years ago
Jerry is saving his money. He started with $15.00. If he adds $10.00 to his savings
posledela

Answer:

$40

Step-by-step explanation:

use y = mx + b  

y = amount saved = ?

m = amount saved per week = $10

x = time (in  months) saving = 2.5

b = money jerry started with = $15

plug in:

y = (10)(2.5)+15

y = $40

6 0
3 years ago
Sam sent an email ro 3 friends on Monday. Each of the friends then sent an email to 3 friends on Tuesday. On Wednesday, each of
ivann1987 [24]
3*3*3 here you go!! Hope this helps
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3 years ago
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