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LenKa [72]
3 years ago
13

An exam consists of six true-or-false questions. Assuming that every question is answered, in how many different ways can a stud

ent complete the exam? In how many ways may the exam be completed if a penalty is imposed for each incorrect answer, so that a student may leave some questions unanswered?
Mathematics
1 answer:
Whitepunk [10]3 years ago
8 0
2 cause the rest is going to give the student maybe at least a B in grade
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\begin{cases}
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\\\\\\
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What is the center of the hyperbola whose equation is (y+3)^2/81-(x-6)^2/89=1?
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We have been given an equation of hyperbola \frac{(y+3)^2}{81}-\frac{(x-6)^2}{89}=1. We are asked to find the center of hyperbola.  

We know that standard equation of a vertical hyperbola is in form \frac{(y-k)^2}{b^2}-\frac{(x-h)^2}{a^2}=1, where point (h,k) represents center of hyperbola.

Upon comparing our given equation with standard vertical hyperbola, we can see that the value of h is 6.

To find the value of k, we need to rewrite our equation as:

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Hey there!!

The median is 72

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