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4 years ago

I need help..........

Mathematics

1 answer:

yanalaym [24]4 years ago

7 0

Answer:

x<-2

Step-by-step explanation:

That is the answer derived from the given graph, where you can see that there is no inclusion of the number -2,

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Please help with this question Thank you

Elden [556K]

Answer:

4.(a) y = -2x + 5

Step-by-step explanation:

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3 years ago

Determine whether the statement is true or false. If it is true, explain why.

Over [174]

True.

Since $y^4 \geq 0$ , $y' = -1 - y^4 \ \textless \ 0$ and the solutions are decreasing functions.

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4 years ago

Solve the following equation for the

Akimi4 [234]

Divide -3
-3/-3a = 15/-3
a = -5

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3 years ago

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Quincy uses the quadratic formula to solve for the values of x in a quadratic equation. He finds the solution, in simplest radic

Alexxx [7]

Answer:

<h2>A. Zero, because the discriminant is negative. </h2>

Step-by-step explanation:

I just did it.

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3 years ago

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After a college football team once again lost a game to their archrival, the alumni association conducted a survey to see if alu

valentina_108 [34]

Answer:

P-value for this hypothesis test is 0.00175.

Step-by-step explanation:

We are given that the alumni association conducted a survey to see if alumni were in favor of firing the coach.

A simple random sample of 100 alumni from the population of all living alumni was taken. Sixty-four of the alumni in the sample were in favor of firing the coach.

Let p = proportion of all living alumni who favored firing the coach

SO, Null Hypothesis, $H_0$ : p = 0.50 {means that the majority of alumni are not in favor of firing the coach}

Alternate Hypothesis, $H_A$ : p > 0.50 {means that the majority of alumni are in favor of firing the coach}

The test statistics that will be used here is One-sample z proportion statistics;

T.S. = $\frac{\hat p-p}{{\sqrt{\frac{\hat p(1-\hat p)}{n} } } } }$ ~ N(0,1)

where, $\hat p$ = sample proportion of the alumni in the sample who were in favor of firing the coach = $\frac{64}{100}$ = 0.64

n = sample of alumni = 100

So, test statistics = $\frac{0.64-0.50}{{\sqrt{\frac{0.64(1-0.64)}{100} } } } }$

= 2.92

Now, P-value of the hypothesis test is given by ;

P-value = P(Z > 2.92) = 1 - P(Z $\leq$ 2.92)

= 1 - 0.99825 = 0.00175

Therefore, the P-value for this hypothesis test is 0.00175.

4 0

4 years ago