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2 years ago

Which is the equation of this best line of fit?

Mathematics

1 answer:

Neporo4naja [7]2 years ago

3 0

Answer:

D) y = 5x + 25

Step-by-step explanation:

the line of fit is defined by y = mx + b where:

m = the slope of the line (the rate of change)

b = the y-intercept (where it crosses the y-axis)

We see that for every 1 unit the graph moves horizontally... it moves 5 units vertically, thus we are given m = 5

If you look at the y-axis... we can determine that the graph crosses the y-axis at (0, 25), thus we are given b = 25

Therefore, the answer is y = 5x + 25

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Which number is rational?

Vaselesa [24]

Yeah its D i just checked

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2 years ago

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when 2 is added to five times a number, the result is less than 13 .find the greatest whole number that satisfies the statement

Ghella [55]

Answer:

Step-by-step explanation:

The text translates to:

5x + 2 < 13

which simplifies to

x < 11/5

the greatest integer that does this is 10/5, a.k.a. 2

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2 years ago

the ratio of the lenghts of corresponding parts in two smillar solids is 4.1 what is the ratio of their surface areas?

victus00 [196]

Answer:

16:1

Step-by-step explanation:

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(4:1)²

4²:1²

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2 years ago

For one month Siera calculated her home town's average high temperature in degrees Fahrenheit. She wants to convert that tempera

Lana71 [14]

We have to find how can someone convert the temperature from degrees Farhenheit to degrees Celsius using the function. The temperature in degrees Celsius is equal to the temperature in degrees Farhenheit minus 32 times 5/9. Or C ( F ) = ( F - 32 ) * 5/9. For example: the temperature is F = 50°; C ( 50 ) = ( 50 - 32 ) * 5/9 = 18 * 5/ 9 = 10 °C. Answer: The function is: C ( F ) = ( F - 32 ) * 5/9.

Hope this helped.

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3 years ago

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Can you think of any 2x2 matrices d for which cd = dc for all 2x2 matrices c? give 2 different examples of such matricesd.

Ksju [112]

For any arbitrary 2x2 matrices $\mathbf C$ and $\mathbf D$ , only one choice of $\mathbf D$ exists to satisfy $\mathbf{CD}=\mathbf{DC}$ , which is the identity matrix.

There is no other matrix that would work unless we place some more restrictions on $\mathbf C$ . One such restriction would be to ensure that $\mathbf C$ is not singular, or its determinant is non-zero. Then this matrix has an inverse, and taking $\mathbf D=\mathbf C^{-1}$ we'd get equality.

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2 years ago