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serg [7]
3 years ago
15

when walking home from school during the summer months, Harold buys either an ice-cream or a drink from the corner shop. If Haro

ld bought an ice-cream the previous day, there is a 30% chance that he will buy a drink the next day. If he bought a drink the previous day, there is a 40% chance that he will buy an ice-cream the next day. On Monday, Harold bought an ice-cream. Determine the probability that he buys an ice-cream on Wednesday.
Mathematics
1 answer:
Juliette [100K]3 years ago
4 0

Answer:

40 or 50%. Let me write this down and solve it, hold on a second.

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Please help me, I'm suffering from all of these parallel lines ;9
Anarel [89]

Answer:

1. y = 4x - 27

2. y = -4x - 15

Step-by-step explanation:

If two lines are parallel, then they have the same slope. So, the slope of the line we are looking for needs to be 4. We can start by writing a point-slope equation:

y - y1 = m(x - x1)

We can substitute the values we have, the point we are using is (8, 5) because it needs to be on the line:

y - 5 = 4(x - 8)

We can distribute:

y - 5 = 4x - 32

y = 4x - 27

We are not given the slope-intercept form, so we must divide both sides by two to get it:

y = 1/4 x + 8

A perpendicular line has the slope that is the negative reciprocal of the one that is given. So, the slope of the line would be - 4. We can start by writing a point-slope equation:

y - y1 = m(x - x1)

We can substitute the values we have, the point we are using is (-5, 5) because it needs to be on the line:

y - 5 = -4(x + 5)

We can distribute:

y - 5 = -4x - 20

y = -4x - 15

6 0
3 years ago
Find the length of the leg x of the right triangle shown below.
Alexus [3.1K]

Answer

9.327

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13*13=169

256-169=87

87 squared=9.32737905309

9.32737905309 ROUNDED TO NEAREST THOUSANDTH= 9.327

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3 years ago
Explain the importance of graphs in interpreting data.
lina2011 [118]
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Find the slope of the line passing through the points (-6,7) and (-8,5)
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Answer:

Slope = 1

Step-by-step explanation:

4 0
2 years ago
Plz help only have ten minutes ​
Anarel [89]

Answer:

-\frac{1}{2}

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
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