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Katarina [22]
3 years ago
8

A ratio is defined as

Mathematics
1 answer:
Harrizon [31]3 years ago
5 0
A ratio is a one or more letter term
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3. Use the following table to answer questions (a – c).
sineoko [7]

Answer:

See below

Step-by-step explanation:

B) The correlation coefficient is r=0.75, which can be determined by plugging the data into a TI-84 calculator.

C) A correlation coefficient of r=0.75 indicates that the correlation between the independent and dependent variable (x and y in this case) is moderately strong with a positive correlation. The closer r is to 1, the stronger the positive correlation. The closer r is to -1, the stronger the negative correlation. If r is closer to 0, then there's no correlation.

7 0
2 years ago
Which sentence correctly describes a data set that follows a normal distribution with a standard deviation of 4 and a mean of 14
denis-greek [22]

Answer:

Option (c) is correct.

68% of the data points lie between 10 and 18.

Step-by-step explanation:

Given :  a normal distribution with a standard deviation of 4 and a mean of 14

We have to choose the  sentence that correctly describes a data set that follows a normal distribution with a standard deviation of 4 and a mean of 14.

Since, given 68% data.

We know mean of data lies in middle.

And standard deviation is distribute equally about the mean that is 50% of values less than the mean  and 50% greater than the mean.

So, 68% of data lies

mean - standard deviation = 14 - 4 = 10

mean + standard deviation = 14 + 4 = 18

So, 68% of the data points lie between 10 and 18.

4 0
3 years ago
How to bring the polynomial to the standard form p(x) x^2-2x+4) (x^2+2x+4) ​
saveliy_v [14]
<h3>Solution:</h3>

\rightarrow\sf((p(x) {x}^{2}  + 2x + 4)( {x}^{2}  + 2x + 4)) \\  = \sf  {ax}^{2}  + bx + c \\  = \sf(p(x) {x}^{2}  {x}^{2}  + p(x) {x}^{2} (2x) + p(x) {x}^{2}  \times 4 + 2x \times  {x}^{2}  + 2x(2x) + 2x \times 4 +  {4x}^{2}  + 4(2x) + 4 \times 4) \\  = \sf( {x}^{4} p(x) +  {2x}^{3} p(x) +  {4x}^{2} p(x) +  {2x}^{3}  +  {8x}^{2}  + 16x + 16) \\   \rightarrow \large\boxed{\sf\red{{{x}^{4} p(x) +  {2x}^{3} p(x) +  {4x}^{2} p(x) +  {2x}^{3}  +  {8x}^{2}  + 16x + 16}}}

<h3>Answer:</h3>

\large\boxed{\sf{\red{{x}^{4} p(x) +  {2x}^{3} p(x) +  {4x}^{2} p(x) +  {2x}^{3}  +  {8x}^{2}  + 16x + 16}}}

\color{red}{==========================}

✍︎ꕥᴍᴀᴛʜᴅᴇᴍᴏɴǫᴜᴇᴇɴꕥ

✍︎ꕥᴄᴀʀʀʏᴏɴʟᴇᴀʀɴɪɴɢꕥ

✍︎ꕥᴋɪᴍ ᴀʀᴀꕥ

5 0
3 years ago
Describe the graph of y = 3 x squared and compare it with the graph of y = x squared
lesantik [10]
Y=-x^2 is just y=x^2 reflected over the x-axis. In other words, the parabola is upside-down.
3 0
3 years ago
Read 2 more answers
What’s the answer?????????
Sedbober [7]
The right answer is letter B).
4 0
3 years ago
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