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2 years ago

10

It has been estimated that a student’s final grade in a course decreases by 5 points for every 2 days absent from class. If a st

udent misses 4 days, by how many points will the student’s final grade decrease?

1 answer:

Leto [7]2 years ago

8 0

2*2=4
5*2=10
So I am thinking 10 points

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Use the distance formula:
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3 years ago

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1 year ago

What is the solution for the following equation?<br> x^2-6x+9=11

tankabanditka [31]

Make one side equal zero
minus 11 to both sides
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another quadratic equation

if you hahve
ax^2+bx+c=0
x= $\frac{-b+/- \sqrt{b^{2}-4ac} }{2a}$

1x^2-6x-2=0
a=1
b=-6
c=-2

x= $\frac{-(-6)+/- \sqrt{(-6)^{2}-4(1)(-2)} }{2(1)}$
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x= $\frac{6+/- \sqrt{44} }{2}$
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aprox
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2 years ago