Mathematics: Which of the following has the greatest sum? A. 1.57 + 0.23 B. 1.09 + 0.76 C. 0.98 + 0.89 D. 1.18 + 0.68

Which of the following has the greatest sum? A.

Ответ:

lilbrown6369

25.04.2022

Mathematics

Step-by-step explanation:

A - 1.57 + 0.23 = 1.80

B- 1.09 + 0.76 = 1.85

C- 0.98 + 0.89 = 1.87

D - 1.18 + 0.68 = 1.86

C has the greater sum

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Ответ:

miya214

06.02.2020

Mathematics

Step-by-step explanation: Given that,

$(-9,-3)~\textup{and}~(-12,-4)$ are two points contained in the function. Since it is a direct variation function, so it is a straight line passing through the given points.

Let, $x_{1}=-9,~y_{1} =-3,~x_{2}=-12~\textup{and}~y_{2} =-4.$

So, slope of the line is given by

$m=\dfrac{y_{2}-y_{1} }{x_{2} -x_{1} } \\\Rightarrowc=\dfrac{1}{3}.$

The equation of the line or the function is

$y-y_{1} =m(x-x_{1} )\\\Rightarrow y+3 =\frac{1}{3}(x+9 )\\\Rightarrow3y+9=x+9\\\Rightarrow3y=x\\\Rightarrow y=\frac{x}{3}.$

Thus, (c) $y=\dfrac{x}{3}$ is the correct option.

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Which of the following has the greatest sum? A. 1.57 + 0.23
B. 1.09 + 0.76
C. 0.98 + 0.89
D. 1.18 + 0.68

Ответ:

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