PLEASE HELPPP! I'LL GIVE BRAINLEST​

Answer:

Part A;  n= 196

Part B:  n = 120

Part C:

d. No, a sample of students at the nearest college is a convenience sample, not a simple random sample. so it is very possible that the results would not be representative of the population of adults.

Step-by-step explanation:

Part A;

The sample size n can be calculated by using the formula

p^ ± z∝/2* √pq/n

this implies that

e= z∝/2* √pq/n

where e= ║p-p^║= 0.07

p^= 0.5

q^= 0.5

Putting the values

e= z∝/2* √pq/n

0.07= ± 1.96 √0.5*0.5/n

Squaring both sides

0.0049 = 3.8146*0.25/n

n= 196

Part B:

Given p^= 0.81  and q^= 1-p^= 1-0.81= 0.19

e= 0.07

Using the formula

e= z∝/2* √pq/n

Putting the values

0.07= ± 1.96 √0.81*0.19/n

Squaring both sides

0.0049 = 3.8146*0.1539/n

n= 119.809= 120

Part C:

The sample selected is not a random sample because all the adults who have heard about the brand do not have equal chances of being chosen.

It is convenience sample that is it is chosen at ease from a nearby college.

Answer:

C) [tex]\sqrt{90}[/tex]

Step-by-step explanation:

VY = base and leg

XY = height and leg

VX = hypotenuse (c)

VY:

9 - 6 = 3

Solving for VX(c):

a² + b² = c²

3² + 9² = c²

9 + 81 = c²

c² = 90

c = [tex]\sqrt{90}[/tex]

Answer:The answer would be C 90

Step-by-step explanation:

Abcdefghijklmnopqrstuvwxyz

Answer:

50

Step-by-step explanation:

22 + 18 = 40

90 - 40 = 50

no way you can round it

Answer:

D-186

Step-by-step explanation:

I hate edge

Answer:

D-186

Step-by-step explanation:

Got it right

Answer:

0.62

Step-by-step explanation:

31/50 =62/100 or 0.62

Step-by-step explanation:

Multiply both the numerator and denominator by 2 to get the denominator to 100 and lastly convert it into a decimal.

[tex] \frac{31 \times 2}{50 \times 2} = \frac{62}{100} = 0.62[/tex]

Answer: i inserted two just incase but tell me if i am wrong

Step-by-step explanation:

Answer:

the second one

Step-by-step explanation:

Answer: Second one

Step-by-step explanation: Because when the plus times the minus it will stay minus.

Answer:

The hourly growth rate parameter is of 4.74%

Step-by-step explanation:

Continuous growth model:

The continuous growth model for a population after t hours is given by:

[tex]P(t) = P(0)(1+r)^t[/tex]

In which P(0) is the initial population and r is the hourly growth rate parameter, as a decimal.

A sample of 1500 bacteria selected from this population reached the size of 1805 bacteria in four hours.

This means that [tex]P(0) = 1500, P(t) = 1805, t = 4[/tex]

Find the hourly growth rate parameter.

[tex]P(t) = P(0)(1+r)^t[/tex]

[tex]1805 = 1500(1+r)^4[/tex]

[tex](1+r)^4 = \frac{1805}{1500}[/tex]

[tex]\sqrt[4]{(1+r)^4} = \sqrt[4]{\frac{1805}{1500}}[/tex]

[tex]1 + r = (\frac{1805}{1500})^{\frac{1}{4}}[/tex]

[tex]1 + r = 1.0474[/tex]

[tex]r = 0.0474[/tex]

0.0474*100% = 4.74%

The hourly growth rate parameter is of 4.74%

Answer: 2756 cubic inches

Step-by-step explanation:

Well, first calculate the rectangular prism: 11 x 11 x 16 = 2304

Then the cylinder: pi x 4(sqrd) x 9 = about 452

then add them together

I hope this helps! :)

Answer: 10

Step-by-step explanation: If you do the 3rd term divided by the 2nd term, that gives you 10. So, if the 1st term is 10, you do 10 times 10 which is 100 (2nd term) and 100 times 10 which is 1,000 (3rd term).

Answer:

[tex] \bf \large 60 \: m[/tex]

Step-by-step explanation:

π = 22/7

r = 10 m

⟼ c = 2πr

⟼ c = 2 × 22/7 × 10 m

⟼ c = 2 × 3•14 × 10m

⟼ c = 6•28 × 10 m

⟼ c = 62•8 m

⟼ c = 62•8 m

⟼ c = 60 m

∴ circle circumference is 60 m.

Answer:

RM 4.05

Step-by-step explanation:

6mnts=70% of 500 is 350, so 150

1 year= 70% of 150 is 105, so 45

1 n half year = 70% of 45 is 31.5, so 13.5

2 years = 70% of 13.5 is 9.45, so Rm 4.05

BETTER ASK HER TO DONATE THE PHONE.....LOL

Answer:

sampling distribution = 22.4

sampling deviation = 0.68

Step-by-step explanation:

Given that :

Mean , μ = 22.4

Standard deviation, σ = 5.8

n = 73

Therefore, the sampling distribution of the mean and the standard deviation is

[tex]$\mu_{\overline x} = 22.4$[/tex]

So, [tex]$\sigma_{\overline x}=\frac{\sigma}{\sqrt n}$[/tex]

            [tex]$=\frac{5.8}{\sqrt {73}}$[/tex]

          = 0.68

So the sampling distribution of the mean is 22.4

The standard deviation is 0.68

Answer:

Not sure what the question is but the equation would be

[tex]c^{2} = a^{2} + b^{2}[/tex]

[tex]28^{2} = 20^{2} + b^{2}[/tex]

and to find the missing side

784 = 400 + [tex]b^{2}[/tex]

b= 19.6

The missing side would be 19.6

Answer:

19.6

Step-by-step explanation:

u see this is how the Pythagorean theorem works a^2 + b^2 = c^ i hope this helps have a great day bye please mark as brainliest :D

Answer:

no not me I have a size 7 .how about you

Uhh, you didn't provide the actual question. All you said was "Tyrell bought 4 liters of fruit punch for a party".

Answer:

where's the full question

Step-by-step explanation:

Answer: sorry about that Evaluate for y=8

9x+(4)(8)

9x+(4)(8)

=9x+32

Hope this help :D

Answer:

It doesn't say what x is so once you have x all you have to do is insert the numbers in their place, so you will get 9(x) + 4(8). Now multiply 9 by x, then multiply 4 and 8, which is 32. Now add 32 and whatever 9 times x is. Hope this helps!

Answer:

Reflexive Property of Equality

Answer:

(x-6)(x+6)

Step-by-step explanation:

Answer:

i think its 8r^4

hope this helps

Step-by-step explanation:

9514 1404 393

Answer:

  the cut plane is between non-intersecting edges

Step-by-step explanation:

The cross section will be a quadrilateral when the cut plane intersects four of the six edges of the pyramid. This will be the case when the plane lies between two edges that do not intersect.

The stone will hit the ground after 3.5 seconds.

Given information:

A stone is dropped from a 196-foot platform.

The height of the stone after t seconds is represented by [tex]h=-16t^2+v_0t+196[/tex]

As the stone hits the ground, the height will become zero and the initial velocity [tex]v_0[/tex] is equal to zero as it is dropped.

So, the time after which the stone will hit the ground will be calculated as,

[tex]h=-16t^2+v_0t+196\\0=-16t^2+0t+196\\16t^2=196\\t^2=12.25\\t=3.5[/tex]

Therefore, the stone will hit the ground after 3.5 seconds.

For more details, refer to the link:

https://brainly.com/question/13418564

Answer:

8.25

= root under (8-0)^2+(2-0)^2

= root under (8)^2+(2)^2

=root under 64+4

= root under 68

8.25 units

I hope this will help you and plz mark me as brainest answer

Answer:

One sample t test

Step-by-step explanation:

A one proportion sample t test is employed when we intend to test the sample mean of a certain sample against a particular or specified population property . In the scenario above, we could use the information given to obtain the one sample proportion test statistic by using the formular :

Test statistic = (xbar - μ) ÷ (σ/sqrt(n))

Where, xbar = sample mean ;

μ = population mean

σ = population standard deviation

n = sample size

Using the test statistic, we can then obtain the Pvalue and compare to the specified α - level

Answer:

11

Step-by-step explanation: