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Vika [28.1K]
4 years ago
13

Help me with my math please

Mathematics
1 answer:
dangina [55]4 years ago
7 0
Again, the absolute value lines mean the distance from zero, so change -2.5 to 2.5 then continue on and subtract. 8.2-2.5 = 5.7 Let me know if you are confused
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Answer:

See the attached pictures for answer.

Step-by-step explanation:

See the attached pictures for explanation.

8 0
4 years ago
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Pls help me on this math question.I am really confused
Natali5045456 [20]

Answer:

640 m

Step-by-step explanation:

We can consider 4 seconds to be 1 time unit. Then 8 more seconds is 2 more time units, for a total of 3 time units.

The distance is proportional to the square of the number of time units. After 1 time unit, the distance is 1² × 80 m. Then after 3 time units, the distance will be 3² × 80 m = 720 m.

In the additional 2 time units (8 seconds), the ball dropped an additional

... (720 -80) m = 640 m

_____

<em>Alternate solution</em>

You can write the equation for the proportionality and find the constant that goes into it. If we use seconds (not 4-second intervals) as the time unit, then we can say ...

... d = kt²

Filling in the information related to the first 4 seconds, we have ...

... 80 = k(4)²

... 80/16 = k = 5

Then the distance equation becomes ...

... d = 5t²

After 12 seconds (the first 4 plus the next 8), the distance will be ...

... d = 5×12² = 5×144 = 720 . . . meters

That is, the ball dropped an additional 720 -80 = 640 meters in the 12 -4 = 8 seconds after the first data point.

6 0
3 years ago
An experiment involves rolling two dice simultaneously. The following table shows the possible outcomes using the format of (die
Lostsunrise [7]

Answer:

1,1

2,2

3,3

4,4

5,5

6,6

1,2

1,3

1,4

1,5

1,6

2,1

2,1

2,3

2,4

2,5

2,6

3,1

3,2

3,3

3,4

3,5

3,6

4,1

4,2

4,3

4,4

4,5

4,6

5,1

5,2

5,3

5,4

5,5

5,6

6,1

6,2

6,3

6,4

6,5

count these and mult my two because they can be reversed.

Step-by-step explanation:

8 0
3 years ago
Alfredo has different colored spiral notebooks in his backpack. Which of the following models could be used to simulate a 1 in 3
BartSMP [9]

Answer:

the fourth option

Step-by-step explanation:

Probability calculates the likelihood of an event occurring. The likelihood of the event occurring lies between 0 and 1. It is zero if the event does not occur and 1 if the event occurs.

For example, the probability that it would rain on Friday is between o and 1. If it rains, a value of one is attached to the event. If it doesn't a value of zero is attached to the event.

Probability of choosing a red spiral = number of red spiral / total sum of spirals in the bag

1st option = 2 / 4 = 1/2

2nd option = 4/8 = 1/2

3rd option = 2/3

4th option = 2/6 = 1/3

the fourth option is correct

4 0
3 years ago
Well this is the question. The Scoop website charges $29 for a four line classified ad. Each additional line costs $3.45. For an
ohaa [14]

Explanation:

The cost for the ad can be calculated as:

Cost = $29 + 3.45(3) + $20

Cost = $59.35

Because the ad has 7 lines, 4 that are include in the initial

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1 year ago
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