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Monica [59]
2 years ago
12

The graph of function f is shown below. Find f(-4)

Mathematics
1 answer:
NNADVOKAT [17]2 years ago
8 0

Answer:

<h3>pls give the correct question the question is not correct</h3>
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Sharon wants to make a graph to show the relationship between the number of tickets sold and the price of tickets sold.
RoseWind [281]

Answer:

learn kid

Step-by-step explanation:

3 0
3 years ago
4/7 divided by 1 3/4
____ [38]
I believe the answer would be 16/49.
5 0
3 years ago
Test the claim that the proportion of people who own cats is significantly different than 90% at the 0.1 significance level.
VikaD [51]

Answer:

1. H0 : p = 0.9

   H1 : p ≠ 0.9

2. The test is two tailed.

3. Reject the null hypothesis

Step-by-step explanation:

We are given that we have to test the claim that the proportion of people who own cats is significantly different than 90% at the 0.1 significance level.

So, Null Hypothesis, H_0 : p = 0.90

Alternate Hypothesis, H_1 : p \neq 0.9

Here, the test is two tailed because we have given that to test  the claim that the proportion of people who own cats is significantly different than 90% which means it can be less than 0.90 or more than 0.90.

Now, test statistics is given by;

            \frac{\hat p-p}{\sqrt{\frac{\hat p(1-\hat p)}{n} } } ~ N(0,1)   , where,  n = sample size = 100

                                                       \hat p = 0.94 (given)

So, Test statistics = \frac{0.94-0.90}{\sqrt{\frac{0.94(1-0.94)}{100} } } = 1.68

Now, P-value = P(Z > 1.68) = 1 - P(Z <= 1.68)

                                           = 1 - 0.95352 = 0.0465 ≈ 0.05 or 5%

Now, our decision rule is that;

       If p-value < significance level  ⇒ Reject null hypothesis

       If p-value > significance level  ⇒ Accept null hypothesis

Since, here p-value is less than significance level as 0.05 < 0.1, so we have sufficient evidence to reject null hypothesis.

Therefore, we conclude that proportion of people who own cats is significantly different than 90%.

8 0
3 years ago
One number is 6 less than 3 times another number and their sum is 62.find the numbers
zysi [14]

y = 6 - 3x

x + y = 62

Since we already know the value of y, we can use substitution to find the value of x.

x + 6 - 3x = 62

<em><u>Subtract 6 from both sides.</u></em>

x - 3x = 56

<em><u>Combine like terms.</u></em>

-2x = 56

<em><u>Divide both sides by -2</u></em>

x = -28

Now that we know the value of x, we can solve for the value of y.

x + y = 62

-28 + y = 62

<em><u>Add 28 to both sides</u></em>

y = 90

The value of y is 90, and the value of x is -28 (this is your answer)

To make sure that these values are correct, we can plug them into the original equations.

y = 6 - 3x

x + y = 62

90 = 6 - 3(-28)

90 = 90 √ this is correct

-28 + 90 = 62

62 = 62 √ this is also correct

3 0
3 years ago
How many weeks are in 1200 hours?
LenKa [72]

Answer:

7 1/7

Step-by-step explanation:

24 hours  = 1 day

7 days = 1 week

⇒ number of hours in 1 week = 24 x 7 = 168

⇒ number of weeks in 1200 hrs = 1200 ÷ 168 = 7 1/7

7 0
2 years ago
Read 2 more answers
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