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Vesnalui [34]
3 years ago
10

The vertex of a parabola is at point 2,5.Which equations could be for this parabola below??

Mathematics
1 answer:
Natali5045456 [20]3 years ago
7 0

The vertex form of the equation of a vertical parabola is

y = (x-h)^2 + k, where (h,k) is the vertex.

Here, because the vertex is at (2,5), that equation must be:

y = (x-2)^2 + 5.

Answer A is closest, but ought to be A) y = (x-2)^2 + 5 (the 5 is positive).

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13.375 times

Step-by-step explanation:

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47

Step-by-step explanation:

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2 years ago
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in a city school of 1,200 students, 40% of the students are on the honor roll, 60% have a part-time job, and 22% are on the hono
Alexus [3.1K]
Let
A = event that the student is on the honor roll
B = event that the student has a part-time job
C = event that the student is on the honor roll and has a part-time job

We are given
P(A) = 0.40
P(B) = 0.60
P(C) = 0.22
note: P(C) = P(A and B)

We want to find out P(A|B) which is "the probability of getting event A given that we know event B is true". This is a conditional probability

P(A|B) = [P(A and B)]/P(B)
P(A|B) = P(C)/P(B)
P(A|B) = 0.22/0.6
P(A|B) = 0.3667 which is approximate

Convert this to a percentage to get roughly 36.67% and this rounds to 37%

Final Answer: 37%

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3 years ago
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