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Serhud [2]
2 years ago
11

Please hurry I am going n a test and I don’t know this!!!!!!!!!If the probability of an event is .42, the probability of the eve

nt
not occuring is:
Mathematics
1 answer:
Norma-Jean [14]2 years ago
3 0

0.58

Justification:

<u>As we know that</u>,

  • P(E) + P(Ē) = 1.
  • 0.42 + P(Ē) = 1
  • P(Ē) = 1 - 0.42
  • P(Ē) = 0.58

<u>Hence, the probability of non occuring event is 0.58</u>

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Tyrell exercised this week both by walking and by biking. He walked at a rate of 4 mi/h and biked at a rate of 12 mi/h. The tota
Flura [38]

Answer:

A. The equation is 4(t + 1) + 12t = 36

B. He spent 2 hours on biking and 3 hours on walking

Step-by-step explanation:

* Lets explain how to solve the problem

- Tyrell walked at a rate 4 miles per hour

∴ His speed on walking is 4 miles/hour

- Tyrell biked at rate 12 miles per hour

∴ His speed on biking is 12 miles/hour

- The total distance he covered both walking and biking was

  36 miles

- Assume that he walked x and biked y

∴ x + y = 36 ⇒ (1)

- Tyrell spent one more hour walking than biking

- Assume that he biked for t hours

∵ He walked one more hour than he biked

∵ He biked for t hours

∴ He walked for t + 1 hours

A.

∵ Distance = speed × time

∴ x = 4 × (t + 1)

∴ x = 4(t + 1)

∴ y = 12 × t

∴ y = 12t

- Substitute x and y in equation (1)

∴ 4(t + 1) + 12t = 36 ⇒ the equation

B.

* Lets solve the equation

- Multiply the bracket by 4

∴ 4t + 4 + 12t = 36

- Add like terms in left hand side

∴ (4t + 12t) + 4 = 36

∴ 16t + 4 = 36

- Subtract 4 from both sides

∴ 16t = 32

- Divide both sides by 16

∴ t = 2

∵ t represents the time of biking

∴ He biked for 2 hours

∵ t + 1 represents the time of walking

∵ t + 1 = 2 + 1  = 3

∴ He walked for 3 hours

5 0
3 years ago
1f (-2, y) lies on the graph of y = 3, then y =​
kkurt [141]

Answer:

y = 3

Step-by-step explanation:

the y-value of any ordered pair that lies on the line 'y = 3' will be equal to 3.

7 0
3 years ago
Which equation could have been used to create this table? Please help ill brainlist
ikadub [295]
Wheres the table?

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7 0
3 years ago
What the heck does this mean? -(-) =
Bond [772]

Answer:

+

Step-by-step explanation:

++ = +

+- = -

-+ = -

-- = +

Example:

-1 x -1 = 1

1 x -1 = -1

3 0
3 years ago
Read 2 more answers
How do change 13 1/4 into decimal form
Bess [88]
That would be 13.25, 13+1/4
                                = 13+(1 divided by 4 which is 0.25)
                                = 13+0.25
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7 0
3 years ago
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