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qaws [65]
3 years ago
10

The first steps in writing f(x) = 4x2 + 48x + 10 in vertex form are shown.

Mathematics
2 answers:
OverLord2011 [107]3 years ago
8 0

Answer: the answer is C

Step-by-step explanation:

I took the test

seraphim [82]3 years ago
4 0

Keywords:

<em>Quadratic equation, vertex shape, parabola </em>

For this case we have to rewrite the given quadratic equation, in the form of vertex, for this, we must take into account that a quadratic equation of the form ax ^ 2 + bx + c = 0, can be rewritten in the form of vertex as: y = a (x-h) ^ 2 + k. Vertice is the lowest or highest point of the parabola. The vertex is given by: (h, k). So, let: f (x) = 4x ^ 2 + 48x + 10, to find the equation in the form of vertex, we follow the steps below:

Step 1:

We take the common factor to the first two terms of the equation:

f (x) = 4 (x^2 + 12x) + 10

Step 2:

We work square:

We divide the coefficient of the term "12x" by 2 and its result is squared, that is:

(\frac {12} {2}) ^ 2 = 36

So, we have:

f (x) = 4 (x^2 + 12x + 36-36) + 10

Step 3:

We simplify:

f (x) = 4 (x^2 + 12x + 36) + 10- (4 * 36)

Step 4:

We factor:

f (x) = 4 (x + 6) ^ 2-134

Thus, h = -6\ and\ k = -134

Answer:

The equation in the form of vertex is: f (x) = 4 (x + 6) ^ 2-134, and the vertex is (h, k) = (- 6, -134)

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In a genetics experiment on peas, one sample of offspring contained green peas and yellow peas. Based on those results, estimate
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Complete Question

In a genetic experiment on peas, one sample of offspring contained 436 green peas and 171 yellow peas. Based on those results, estimate the probability of getting an offspring pea that is green. Is the result reasonably close to the value of 3/4 that was expected? The probability of getting a green pea is approximately: Is the probability reasonably close to 3/4?

Answer:

The  probability is  P(g) =0.72

Yes the result is reasonably close

Step-by-step explanation:

From the question we are told that

   The  number of  of  green peas is  g =  436

     The number of yellow peas is  y  = 171

   The sample size is  n  =  171 +  436 =  607

The probability of getting an offspring pea that is green is mathematically represented as

       P(g) = \frac{g}{n}

        P(g) = \frac{436}{607}

        P(g) =0.72

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