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Burka [1]
4 years ago
12

Which is table shows a proportional relationship?????????????????? ??????????? ??????????? ??????????? ??????????? ??????????? ?

??????????

Mathematics
2 answers:
lubasha [3.4K]4 years ago
8 0
Divide each y-coordinate by its corresponding x-coordinate except for the point (0, 0). If every division gives you the same answer, it is proportional.

Table A:
2/(-2) = -1
3/(-1) = -3
Since -1 and -3 are different, this is not proportional.

Table B:
-3/(-1) = 3
3/1 = 3
6/2 = 3
All divisions give the same answer, 3. This is proportional.
Kisachek [45]4 years ago
7 0
Table b is correct. I cant give a full answer due to circumstances but there you go.
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Select the correct answer.
andrew-mc [135]

Answer:

v=\sqrt{\frac{E}{m}}

Step-by-step explanation:

The formula is given as:

E=mv^2

We need to solve this formula for v, that means that v to one side and let it be solved in terms of the other variables (E and m). First, we isolate v:

E=mv^2\\\frac{E}{m}=\frac{mv^2}{m}\\\frac{E}{m}=v^2

To isolate v, and eliminate the "square", we need to take square roots of both sides, that will give us v in terms of the other variables:

\frac{E}{m}=v^2\\\sqrt{\frac{E}{m}}=\sqrt{v^2}\\\sqrt{\frac{E}{m}}=v

Putting v to left side (convention), we finally have:

v=\sqrt{\frac{E}{m}}

7 0
3 years ago
A student used a compass and a straightedge to construct <img src="https://tex.z-dn.net/?f=%5Coverline%7BCE%7D" id="TexFormula1"
Luba_88 [7]

Answer:

2) ∠ACE ≅ ∠BCE

Step-by-step explanation:

Considering the complete question attached in Figure below, geometry shows that ∠ACB is bisected into two angles ∠ACE and ∠BCE and we know that bisection means to divide an angle into two equal angles. According to this the resultant angles ∠ACE and ∠BCE must be equal and congruent.

7 0
3 years ago
11/12 of the disk space on a
svet-max [94.6K]

Answer:

2 whole number 1 out of 4

Step-by-step explanation:

11/12 x 3

11/4 = 2remainder 3

2 whole number 3 out of 12

When u reduce it will be 2 whole number 1 out of 4

8 0
3 years ago
When Carson runs the 400 meter dash, his finishing times are normally distributed with a mean of 65 seconds and a standard devia
just olya [345]

Given Information:  

Mean time to finish 400 meter dash  = μ = 65 seconds

Standard deviation to finish 400 meter dash = σ = 2.5 seconds  

Confidence level = 95%

Required Information:  

95% confidence interval = ?

Answer:  

 CI = 60 \: to \: 70 \: seconds

Step-by-step explanation:  

In the normal distribution, the empirical rule states approximately 68% of all the data lie within 1 standard deviation from the mean, approximately 95% of all the data lie within 2 standard deviations from the mean and approximately 99.7% of all the data lie within 3 standard deviations from the mean.

The confidence interval for 95% confidence limit is given by

 CI = \mu \pm 2\sigma

Since approximately 95% of all the data lie within 2 standard deviations from the mean. μ is the mean time Carson takes to finish 400 meter dash and σ is the standard deviation.

 CI = 65 \pm 2(2.5)

 CI = 65 \pm 5

 CI = 65 - 5 \: to \: 65 + 5

CI = 60 \: to \: 70 \: seconds

Therefore, the 95% confidence interval is between 60 to 70 seconds

What does it mean?  

It means that we are 95% confident that the Carson's mean to finish 400 meter dash is within the interval of (60, 70).

4 0
3 years ago
Answerrrrrr mmeeeeeeee ill give you 24 points
Pavel [41]

Answer:

Density = Mass / volume

Problem B mass = 87.5 g and volume = 5 cm^3

Density = 87.5 / 5 = 17.5

This value is too low to be platinum

Step-by-step explanation:

3 0
4 years ago
Read 2 more answers
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