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3 years ago

What is the axis of symmerty of the graph pf function f(X)= x2-10x + 16

Mathematics

1 answer:

Mashcka [7]3 years ago

5 0

Answer:

go on photo math. it will tell you

Step-by-step explanation:

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A map has a scale of 2 inches = 20 kilometers. If the distance between two cities on the map is 10 inches, what is the actual di

Brilliant_brown [7]

100 kilometers you solve with a proportion 2/20=10/x
2x=200 so x=100

5 0

3 years ago

In answering on a multiple choice test, a student either know the answer or guesses. Let p be the probability that the students

LenaWriter [7]

Answer:

$P(A_{1}|B ) =\frac{mp}{1+p(m-1)}$

Step-by-step explanation:

For mutually exclusive events as A1, A2, A3, etc, Bayes' theorem states:

$P(A|B)= \frac{P(B|A)P(A)}{P(B)}$

P(A|B) is a conditional probability: the likelihood of event A occurring given that B is true.

P(B|A) is a conditional probability: the likelihood of event B occurring given that A is true.

P(A) is the probability that A occurs

P(B) is the probability that B occurs

For this problem:

A1 is the probability that the student knows the answer

A2 is the probability that the student guesses the answer

B is the probability that the student answer correctly

$P(A_{1})=p \\P(A_{2})=1-p \\P(B|A_{1})=1 \\P(B|A_{2})=\frac{1}{m} \\P(B)= P(A_{1})P(B|A_{1}) + P(A_{2})P(B|A_{2})= p+\frac{1-p}{m} \\$

P(B|A₁) means the probability that the answer is correct when he knew the answer

P(B|A₂) means the probability that the answer is correct when he guessed the answer

P(A₁|B) means the probability that he knew the answer when the answer was correct

Replacing everything in the Bayes' theorem you get:

$P(A_{1}|B)= \frac{P(B|A_{1})P(A_{1})}{P(B)}=\frac{(1)(p)}{p+\frac{1-p}{m}} =\frac{mp}{mp+1-p} =\frac{mp}{1+p(m-1)}$

5 0

3 years ago

What are the roots of the polynomial equation? x2−12x−64=0

Elodia [21]

Answer: " x = 16 ; - 4 " .
_____________________________
<u>Note</u>:
______________________________
-16 , +4 = -12 .

-16 * 4 = -64
______________________________
(x - 16)(x + 4) = 0 ;
______________________________
x = 16 ; - 4 .
_____________________________

8 0

3 years ago

Read 2 more answers

3 +17 p + 2 - P<br> Simply each expression by combing like terms

natita [175]

3+17p+2-p
=3+2+17p-p
=5+16p

hope this helps!!

7 0

3 years ago

HELP MEEE!! Please evaluating a compound. Inequality using a graph

Irina-Kira [14]

Answer:

$\frac{x}{2}$