3 years ago

Hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhheeeeeeeeelp

Mathematics

1 answer:

BartSMP [9]3 years ago

7 0

Answer:

Step-by-step explanation:

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If tests are worth 60% of your grade, and you have a 76.8% in that class, and you fail that test, what will be your grade?

ratelena [41]

Answer:

Step-by-step explanation:

it depends on the grade you make, so if you were to make a 65.47, your grade would be a 70, so any grade less than 70 should be the answer, hope this helps!

3 0

3 years ago

What is the equation of the line of the best fit for the following data? Round to the slope and y-intercept of the line to three

BigorU [14]

Answer:

D. $y=-0.927x+13.634$

Step-by-step explanation:

We graph the points on the graph. The graph is attached.

Let us take two points (1, 14) and (15, 1), and calculate the slope $m$ between them <em>(we choose these points because the line passing through them will be the best fit for all points) </em>

$m=\frac{14-1}{1-15} =\frac{13}{-14} =-0.9286$

Thus we have the equation

$y=-0.9286x+b$

Let us now calculate $b$ from the point $(1,14)$

$14=-0.9286(1)+b$

$b=14.9286$

So the equation we get is

$y=-0.9286x+14.9286$

Let us now turn to the choices given and see which choice is closest to our equation: we see that choice D. $y=-0.927x+13.634$ is the closest one, so we pick it.