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3 years ago

Can someone pleaseeeeee help on either question pleaseeeee 100000000 points

Mathematics

2 answers:

SIZIF [17.4K]3 years ago

4 0

Number 3 is gonna be 2 and Number 4 will be 294 I hope this would help u a little bit I will figure out the Other questions

rjkz [21]3 years ago

4 0

Answer:

#3 nuber 2

Step-by-step explanation:

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hammer [34]

Answer:

The test statistic is z=2.5.

The null hypothesis is rejected.

There is enough evidence to support the claim that more than 10% of the 16 ounce cups are underfilled.

Step-by-step explanation:

This is a hypothesis test for a proportion.

The claim is that more than 10% of the 16 ounce cups are underfilled.

Then, the null and alternative hypothesis are:

$H_0: \pi=0.1\\\\H_a:\pi>0.1$

The significance level is assumed to be 0.05.

The sample has a size n=100.

The sample proportion is p=0.18.

$p=X/n=18/100=0.18$

The standard error of the proportion is:

$\sigma_p=\sqrt{\dfrac{\pi(1-\pi)}{n}}=\sqrt{\dfrac{0.1*0.9}{100}}\\\\\\ \sigma_p=\sqrt{0.001}=0.03$

Then, we can calculate the z-statistic as:

$z=\dfrac{p-\pi-0.5/n}{\sigma_p}=\dfrac{0.18-0.1-0.5/100}{0.03}=\dfrac{0.075}{0.03}=2.5$

This test is a right-tailed test, so the P-value for this test is calculated as:

$P-value=P(z>2.5)=0.006$

As the P-value (0.006) is smaller than the significance level (0.05), the effect is significant.

The null hypothesis is rejected.

There is enough evidence to support the claim that more than 10% of the 16 ounce cups are underfilled.

7 0

3 years ago

Find the solution to the system of equations. Select all that apply

PolarNik [594]

Answer:

A. (1,0)

Step-by-step explanation:

When you're solving a system of equations algebraically, you're finding the point that exists on both functions. So, when you're finding the solution graphically, you just need to find the point where the two functions intersect. In this case, it's A. (1,0)

5 0

3 years ago

What is the value of the expression when n=3 6(n^2+2)/n<br><br> 16<br> 22<br> 30<br> 66

Kipish [7]

The correct answer is: [B]: " 22 " .
_________________________________________________________
Explanation:
_________________________________________________________
Given:
_________________________________________________________

$\frac{6(n^2 + 2)}{3}$ ;

Solve when: "n = 3" ;

Rewrite the expression; substituting "3" for all values of "n" ; as follows:

→ $\frac{6(3^2+2)}{3}$ ;

The "6" cancels out to "2" ; & the "3" cancels out to "1" ;

→ {since: " {6 ÷ 3 = 2}" ; and since: " {2 ÷ 2 = 1}" .
_________________________________________________________
→ Since the "denominator" is "1" ; and any value, divided by "1"; results in that original value; we can eliminate the denominator.

→ Now, we can rewrite the expression as:
_________________________________________________________
→ " 2(3² + 2)" ;

= 2(9 + 2) ;

= 2(11) ;

= " 22 " .
_________________________________________________________
→ The answer is: " 22 " ; which is: Answer choice: [B]: " 22 " .
_________________________________________________________

4 0

2 years ago

Rationalize the denominator of square root of negative 36 over open parentheses 2 minus 3 i close parentheses plus open parenthe

dem82 [27]

$\frac{ \sqrt{-36} }{(2 - 3 i )+( 3 + 2 i )}= \\ = \frac{6i}{5-i}* \frac{5+i}{5+i}= \\ = \frac{30i+6i ^{2} }{25-i ^{2} } = \frac{-6+30i}{25+1}= \\ = \frac{-6+30i}{26}=$
= - 3/13 + 15/13 i

5 0

3 years ago

The leaderboard at the Seaside Golf Tournament shows that Charlie's score is 6 and Laverne's

Travka [436]

<h2>Answer: Charlie took 8 more strokes than Laverene</h2>

3 0

3 years ago

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