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kozerog [31]
3 years ago
10

The function f(x) = x2 is graphed above. Which of the graphs below represents the function g(x) = (x + 1)2

Mathematics
1 answer:
Lina20 [59]3 years ago
7 0

Answer:

Step-by-step explanation:

you mean the function f(x)=x² not x2

the answer is the 1st attachment

for the second question

Which of the graphs below represents the function g(x) = (x + 1)²

the answer is the 2nd attachment

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there are n counters in a bag. 4 of the counters are red and the rest are blue. Ross takes a counter from the bag at random and
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Answer: n = 10.

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In the bag, we have n counters.

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p1 = (n - 4)/n

Now he draws another, and it must be blue again, then we can calculate the probability in the same way as above, but he already take a blue counter, so the number of blue counters is (n - 5) and the total number of counters is (n - 1)

The probability of this event is:

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Now let's solve this for n.

n*(n - 1)/3 = (n - 4)*(n - 5)

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0 = (3*n^2 - n^2) - 27*n + n + 60

0 = 2*n^2 - 26*n + 60

The two solutions of this equation can be found with Bhaskara's equation:

n = \frac{-(-26) +- \sqrt{(-26)^2 - 4*2*60} }{2*2} = \frac{26+- 14}{4}

Then the two solutions are:

n = (26 - 14)/4 = 3

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n = (26 + 14)/4 = 40/4 = 10

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