Determine if the following conclusion is valid. Why or why not?
To determine whether students will attend an arts festival at the school, Salina
surveys his friends in the art club. All of Salina's friends plan to attend, so she
assumes that all of the students at the school will also attend.
No this is a voluntary response sample so the sample is biased
2.
Yes, this is a simple random sample so the sample is unbiased
Yes, this is a cluster sample so the sample is unbiased
No this is a convenience sample so the sample is unbiased
Question 12 11 noint)

Answer:

yab

Step-by-step explanation:

=======================================================

Work Shown:

2.25% = 2.25/100 = 0.0225

2.25% of 56 dollars = 0.0225*56 = 1.26

The amount of sales tax is $1.26

Side note: The total bill is 56 + 1.26 = 57.26 dollars.

Answer:

$1.26

Step-by-step explanation:

So you just have to find 2.25% of 56.

To find a certain percentage of something, you multiply it. Let's write out a sentence explaining what you need to do. You have to find:

2.25% of 56

Whenever you've got a sentence like this, all you've got to do is change the word "of" to a multiplication symbol. And now you've got an expression:

2.25% × 56

Let's convert the percentage to a decimal. To do this, you simply remove the percent symbol, then move the decimal point 2 places to the left.

2.25% = 0.0225

And now you have:

0.0225 × 56

Then you just do the math! I am assuming you already know how to do decimal multiplication so I'm not going to explain the process here.

But once you multiply 0.0225 × 56, you get an answer: 1.26

Hope this was helpful to you, and don't forget to choose the Brainliest answer!

Answer:

Below

Step-by-step explanation:

The zeros would be 2 and 4

The axis of symmetry is 3

:)

Answer:

The probability of getting two tails is [tex]\frac{3}{8}[/tex].

Step-by-step explanation:

There are 8 different possible outcomes: HHH, HHT, HTH, HTT, THH, THT, TTH, and TTT. Since only three of them meet the requirement of only two tails, that means the probability of getting two tails is [tex]\frac{3}{8}[/tex].

Answer:

here it's 124°F so if we subtract 8 in 124 it will be 124-8= 114°F

now the range = height - lowest = 124°- 114°F = 8° F

Answer:

19

Step-by-step explanation:

4×4= 16+12= 28

2×3= 6+3= 9

28-9= 19

Answer:

614

Step-by-step explanation:

right on edge unit test

Answer:

38.7

Step-by-step explanation:

For this one we have the oppsoite and the hypotonouse

therefore we'll use SOH

let x= theta/the angle

sin(x)=7/11.2

x=38.68

38.7

Answer: 2/7

i’m pretty sure it’s 2/7

Answer:

2

7

Step-by-Step Explanation:

Answer:

6

Step-by-step explanation:

3=x/2

Multiply both sides by 2

Answer:

1293 soccer books

Step-by-step explanation:

The tricky part about questions like this is: how do I assign variables to the three types of book?

You get a clue from the sentence, "She sold 3 times as many copies of the soccer book as the baseball book."  The number of soccer books is being described by referring TO the number of baseball books.  Pick a variable and assign it to the item being REFERRED TO!

x = number of baseball books

Then  3x = number of soccer books.  The number of basketball books is the same, so 3x = number of basketball books.  Here's the list...

x = number of baseball books

3x = number of soccer books

3x = number of basketball books

The total of these is 3017, so

x + 3x + 3x = 3017

7x = 3017

x = 431

Ah!  But don't forget to look back at the question:  it asks for the number of SOCCER books!  That's 3x, so 3(431) = 1293.

Answer:

B, 5/12

Step-by-step explanation:

Answer:

x-intercept: -4

y-intercept: 24/5

Step-by-step explanation:

Firstly you have to isolate the y:

-6x + 5y = 24

5y = 6x + 24

y = (6x +24)/5

Now, just think about the graph: when the function touch the x-axis, the value of y is equal to 0, and when the function touch the y-axis, the value of x is 0, so just put they in the function:

y = (6•0 + 24)/5

y = 24/5

0 = (6x + 24)/5

5•0 = 6x +24

0 = 6x +24

-6x = 24

x = 24/-6

x = -4

Answer:

=9*4r

=36r

Step-by-step explanation:

36r is the answer

Answer:

9 x r

9 x r

9 x r

9 x r

9r + 9r + 9r + 9r = 36r

Answer:

Yes

Step-by-step explanation:

The ratio for Danny would be 3 / 6 which simplifies to 1 / 2

For Jeff the ratio would be 2 / 4 which simplifies to 1 / 2 as well

Step-by-step explanation:

hope it is helpful to you

Answer:

[tex]11[/tex]

Step-by-step explanation:

[tex]\sqrt{5*5} +\sqrt{6*6}[/tex]

[tex]\sqrt{5^{2} } +\sqrt{6^{2} }[/tex]

[tex]5+\sqrt{6^{2} }[/tex]

simplify the roots

[tex]5+6[/tex]

calculate

11 is your answer!!

[tex]---------[/tex]

hope it helps...

have a great day!!

Answer:

The spinner will land on letter A 20 times

Step-by-step explanation:

The remaining part of the question is attached

Solution

The probability of landing on letter A is 2/8 = 1/4

Now the spin is made 80 times.

Hence, the number of times the spinner will land on letter A is

1/4 * 80 = 20

Answer:

112

Step-by-step explanation:

Supplementary Angle Theorem

Answer:

-3.125

Step-by-step explanation:

Answer:

[tex] - 3 \frac{1}{8} \equiv - \frac{25}{8} [/tex]

= -3.125

Answer:

III

Step-by-step explanation:

the 3rd quadrant since the y-axis part is negative there and so is the x-axis.

Answer:

66 ft^2

Step-by-step explanation:

2 x 3 = 6

5 x 12 = 60

6 + 60 = 66

Answer:

A=A1 + A2

A= (l×w) + (l×w)

A= ((12-3)×5) + (3×(5+2))

A=66 ft^2

Answer:

a: 8.2

b:11.2

A: 37

Answer:

ikcdha b s hyt  jh jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj

Answer:

V≈3310.94ft³

Step-by-step explanation:

explanation is in screenshot.

Answer:

sorry I need points I hope u understand

Answer:

14 Is your answer if you need explanation than comment me