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frez [133]
3 years ago
7

Suppose that a single die with 9 sides (numbered 1, 2, 3, ... , 9) is rolled twice. What is the probability that the sum of the

two rolls equals 3
Mathematics
1 answer:
Darina [25.2K]3 years ago
8 0

Answer:

<h2>2/81</h2>

Step-by-step explanation:

Probability is defines as the likelihood or chance that an event will occur.

Probability = expected outcome of event/total outcome.

Since a single die with 9 sides was rolled, the total event outcome will be 9*9 = 81

Expected outcome will be the event that the sum of the two rolls equals 3. The possible outcomes are {(1,2), (2,1)}. The expected outcome is 2

Probability that the sum of the two rolls equals 3 = 2/81

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Lelu [443]

Answer:

m∠BOC = 40°

Step-by-step explanation:

Given O A ‾ ⊥ O C ‾ OA ⊥ OC m∠BOC=6x−6 ∘

m∠AOB=5x+8 ∘

Find m ∠ B O C:

This means that: m∠BOC and m∠AOC intersect at a right angle.

Hence:

m∠BOC + m∠AOC = 90°

Step 1

Solving for x

6x - 6 + 5x + 8 = 90°

11x -2 = 90°

11x = 90 - 2

11x = 88

x = 88/11

x = 8

Step 2

Solving for m∠BOC

m∠BOC = 6x - 8

m∠BOC = 6(8) - 8

= 48 - 8

= 40°

7 0
3 years ago
The tables in the sixth grade classroom are 2.3 feet long. There are about 30.48 centimeters in 1 foot. About how many centimete
Makovka662 [10]

Answer:

70.104

simplified answer: 70 cm

Step-by-step explanation:

2.3ft * 30.48cm

8 0
3 years ago
Draw two stars and five circles, and write the ratio of stars to circles as a fraction. Then, draw an equivalent ratio of stars
Talja [164]

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2/5

Step-by-step explanation:

5 0
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What integer is 15 less than -35?
mezya [45]

Answer: -5

Step-by-step explanation:

3x=(2x+6)-15

3x=2x-9

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4 0
4 years ago
Which ordered pair represents the y-intercept of the graph of the equation y = - 4 x - 7 ?​
Degger [83]

Answer:

(0, -7)

Step-by-step explanation:

Since -4x is the slope, then -7 is the y-intercept.

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(0,-7)

hope this helps and is right. p.s. i really need brainliest :)

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3 years ago
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