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Ronch [10]
2 years ago
7

A student received an 82% on an exam. If there were 50 questions on the exam, which ratio would show the number of questions ans

wered correctly?
A. 25:50
B. 41:50
C. 59:50
D. 82:50
Mathematics
2 answers:
cluponka [151]2 years ago
5 0
Easy

82% correct
82 out of 100 correct
82/100 of ttoal correct
total=50
82/100 times 50=
41/50 times 50=41 correct

ratio is 41:50

B is answer

seraphim [82]2 years ago
3 0

The answer would have to be B. 41:50

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Write the general polynomial p(x) if its only zeros are 1 4 and -3 with multiplicites 3 2 and 1 respectively what is the degree
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Answer:

The 6th degree polynomial is p(x) = (x-1)^3(x-4)^2(x+3)

Step-by-step explanation:

Zeros of a function:

Given a polynomial f(x), this polynomial has roots x_{1}, x_{2}, x_{n} such that it can be written as: a(x - x_{1})*(x - x_{2})*...*(x-x_n), in which a is the leading coefficient.

Zero 1 with multiplicity 3.

So

p(x) = (x-1)^3

Zero 4 with multiplicity 2.

Considering also the zero 1 with multiplicity 3.

p(x) = (x-1)^3(x-4)^2

Zero -3 with multiplicity 1:

Considering the previous zeros:

p(x) = (x-1)^3(x-4)^2(x-(-3)) = (x-1)^3(x-4)^2(x+3)

Degree is the multiplication of the multiplicities of the zeros. So

3*2*1 = 6

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Step-by-step explanation:

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3 years ago
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