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choli [55]
3 years ago
6

Two quadratic functions are shown.Function 1: f(x) = 3x2 + 6x + 7 Function 2:x g(x)−2 13−1 70 31 7Which function has the least m

inimum value and what are its coordinates?Function 1 has the least minimum value and its coordinates are (−1, 4).Function 1 has the least minimum value and its coordinates are (0, 7).Function 2 has the least minimum value and its coordinates are (−1, 7).Function 2 has the least minimum value and its coordinates are (0, 3).
Mathematics
1 answer:
tankabanditka [31]3 years ago
5 0
Best Answer is : <span>Function 2 has the least minimum value and its coordinates are (0, 3)</span>
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Answer:

y=3x-2

Step-by-step explanation:

The formula for slope is y=mx=b

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Question about a rational expression
sesenic [268]
-9=6/v

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3 0
1 year ago
According to a study done by Wakefield Research, the proportion of Americans who can order a meal in a foreign language is 0.47.
UNO [17]

Answer:

Probability that the proportion of Americans who can order a meal in a foreign language is greater than 0.5 is 0.19766.

Step-by-step explanation:

We are given that according to a study done by Wake field Research, the proportion of Americans who can order a meal in a foreign language is 0.47.

Suppose a random sample of 200 Americans is asked to disclose whether they can order a meal in a foreign language.

<em>Let </em>\hat p<em> = sample proportion of Americans who can order a meal in a foreign language</em>

The z-score probability distribution for sample proportion is given by;

          Z = \frac{ \hat p-p}{\sqrt{\frac{\hat p(1-\hat p)}{n} } }  ~ N(0,1)

where, \hat p = sample proportion

p = population proportion of Americans who can order a meal in a foreign language = 0.47

n = sample of Americans = 200

Probability that the proportion of Americans who can order a meal in a foreign language is greater than 0.5 is given by = P( \hat p > 0.50)

  P( \hat p > 0.06) = P( \frac{ \hat p-p}{\sqrt{\frac{\hat p(1-\hat p)}{n} } } > \frac{0.5-0.47}{\sqrt{\frac{0.5(1-0.5)}{200} } } ) = P(Z > 0.85) = 1 - P(Z \leq 0.85)

                                                               = 1 - 0.80234 = <u>0.19766</u>

<em>Now, in the z table the P(Z  </em>\leq <em>x) or P(Z < x) is given. So, the above probability is calculated by looking at the value of x = 0.85 in the z table which has an area of 0.80234.</em>

Therefore, probability that the proportion of Americans who can order a meal in a foreign language is greater than 0.5 is 0.19766.

4 0
3 years ago
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