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svetoff [14.1K]
3 years ago
6

An instructor gives his class a set of 18 problems with the information that the next quiz will consist of a random selection of

9 of them. If a student has figured out how to do 13 of the problems, what is the probability the he or she will answer correctly
all 9 questions? =.0147
atleast 8 questions ?
Mathematics
1 answer:
Anna [14]3 years ago
7 0

Answer:

The probability the he or she will answer correctly is 1.5%

Step-by-step explanation:

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Use lagrange multiplier techniques to find the local extreme values of f(x, y) = x2 − y2 − 2 subject to the constraint x2 + y2 =
dexar [7]
Given f(x,\ y)=x^2-y^2-2 subject to the constraint x^2+y^2=16

Let g(x,\ y)=x^2+y^2.

The gradient vectors of f and g are:

\nabla f(x,\ y)=\langle2x,-2y\rangle and \nabla g(x,\ y)=\langle2x,2y\rangle

By Lagrange's theorem, there is a number \lambda, such that

\langle2x,-2y\rangle=\lambda\langle2x,2y\rangle=\langle2\lambda x,2\lambda y\rangle

\lambda=\pm1

It can be seen that f(x,\ y)=x^2-y^2-2 has local extreme values at the given region.
6 0
3 years ago
Can someone help with 2 and 3
hammer [34]
For number 2 it's would be 12.8

Sorry I don't have time for number 3
7 0
4 years ago
Read 2 more answers
Hi please help!!
valkas [14]

The table of values of the function y = 2x^2 is:

x  0   1   2   3   4

y  0   2  8   18   32

<h3>How to complete the table?</h3>

The equation of the function is given as:

y = 2x^2

When x= 0, we have

y = 2 * 0^2 = 0

When x= 1, we have

y = 2 * 1^2 = 2

When x= 2, we have

y = 2 * 2^2 = 8

When x= 3, we have

y = 2 * 3^2 = 18

When x= 4, we have

y = 2 * 4^2 = 32

So, the table of values is:

x  0   1   2   3   4

y  0   2  8   18   32

Read more about functions and tables at:

brainly.com/question/15602982

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5 0
2 years ago
(X+8)(x-8) if necessary combine like terms
julia-pushkina [17]

Answer:

x² - 64

Step-by-step explanation:

Given

(x + 8)(x - 8)

Each term in the second factor is multiplied by each term in the first factor, that is

x(x - 8) + 8(x - 8) ← distribute both parenthesis

= x² - 8x + 8x - 64 ← collect like terms

= x² - 64

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3 years ago
The difference of 5 times the cube of x cubed and the quotient of 4 times x and 3
vlada-n [284]

the difference of 5 times the cube of x cubed and the quotient of 4 times x and 3


5*x^3 - (4x/3)

4 0
4 years ago
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