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iVinArrow [24]
3 years ago
14

(x) = ax 2 + bx + c has a negative leading coefficient and the vertex that has a negative y-coordinate. Determine the number of

real zeros of the function.

Mathematics
1 answer:
melomori [17]3 years ago
6 0
The number of real zeroes are the x intercepts or where the graph touches the x axis

negative leading coeficnet means it opens down
negative y coordinate means that the highest point is below the x axis

since it opens down and it is below the x axis, there is no x intercept or real solution (see attachment)

thereforr there are no real roots, there are zero real roots, nada, zip

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Do these ordered pairs represent a function? {(4,1), (5,2), (8,2), (9,8)} *
notsponge [240]

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5 0
3 years ago
ASAP I NEED AN ANSWER
beks73 [17]

Answer:

His brother gets 8 apples

His friends gets 4 apples

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Step-by-step explanation:

brother: friend himself::total

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Multiply each term by 4

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2 years ago
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Prizes and the chances of winning in a sweepstakes are given in the table below.
sergey [27]

The expected value of the discrete distribution, for each case, is given as follows:

a) Amount won by one entry: $0.075.

b) If the cost is the cost of a postage stamp:  -$0.525.

<h3>How to obtain the expected value of a discrete distribution?</h3>

The expected value of a discrete distribution is obtained with the sum of each outcome multiplied by it's probabillity.

In this problem, the distribution for the prizes is given as follows:

  • P(X = 10,000,000) = 1/300,000,000.
  • P(X = 350,000) = 1/150,000,000.
  • P(X = 50,000) = 1/10,000,000.
  • P(X = 20,000) = 1/1,000,000.
  • P(X = 400) = 1/200,000.
  • P(X = 75) = 1/6,000.

Hence the expected value for the prizes is:

E(X) = 10,000,000 x 1/300,000,000 + 350,000 x 1/150,000,000 + 50,000 x 1/10,000,000 + 20,000 x 1/1,000,000 + 400 x 1/200,000 + 75 x 1/6,000 = $0.075.

The cost of a postage stamp is of $0.6, hence the expected value considering this cost would be of:

0.075 - 0.6 = -$0.525.

More can be learned about the expected value of a discrete distribution at brainly.com/question/27899440

#SPJ1

3 0
1 year ago
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