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3 years ago

13

Why is a voluntary response sample always valid

2 answers:

stiks02 [169]3 years ago

4 0

Cringe to fingernails on a chalkboard

Kobotan [32]3 years ago

4 0

It would be like a radio show talk host who asks the audience about controversial topics such as abortion, taxes, gun control, etc. Basically it is bad because the radio host would be asking them biased questions that really did not need to be asked in the first place because there are so many different opinions in the world.
Hope this helped!
Have a nice day!

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There are 8 chairs arranged evenly around t tables. Write an expression that shows how many chairs are at each table.

Leno4ka [110]

The correct expression is 8/t

8 0

3 years ago

Read 2 more answers

Plz help im timed abcdefghijklmnopqrstuvwxyz

lilavasa [31]

Answer:

16(0.5x – 0.75y + 2)

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3 years ago

Simplify 9-[3+2•3] if anyone could help me with this question

Butoxors [25]

do what is in the parenthesis first and you multiply first. 3x2 is 6. 6+3 is 9. 9-9 = 0

I think the answer is 0

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3 years ago

Janet and her brother John went out to eat. Both paid the same amount. Janet got three burgers and left a $10 tip. John bought 4

lianna [129]

Answer:

Cost for 1 burger = 5 $

Amount spent by Janet = 25$

Amount spent by John = 25$

Explanation:

Let the cost for burger be p.

Janet got three burgers and left a $10 tip

Amount spent by Janet = 3 p + 10

John bought 4 burgers, but only left a $5 tip

Amount spent by John = 4 p + 5

Both paid the same amount.

So, we have 3 p + 10 = 4 p + 5

=> p = 5 $

So, cost for 1 burger = 5 $

Amount spent by Janet = 3 x 5 + 10 = 25$

Amount spent by John = 4 x 5 + 5 = 25$

6 0

3 years ago

Carpenters use a tool called a speed square to help them mark right angles . A speed square is a right triangle

Ronch [10]

Answer:

A. $Area = \frac{1}{2}(2x^2 - 2x - 24)$

B. $Area = 3.75 in^2$

Step-by-step explanation:

A. $Area = \frac{1}{2}bh$

Where,

$b = 2x + 6$

$h = x - 4$

Plug in the values to get a polynomial that represents the area of the tool

$Area = \frac{1}{2}(2x + 6)(x - 4)$

$Area = \frac{1}{2}(2x(x - 4) + 6(x - 4)$

$Area = \frac{1}{2}(2x^2 - 8x + 6x - 24)$

$Area = \frac{1}{2}(2x^2 - 2x - 24)$

B. To find area, when x = 4.5 in, plug in the value of x into the equation for the area of the tool.

$Area = \frac{1}{2}(2(4.5)2 - 2(4.5) - 24)$

$Area = \frac{1}{2}(2(20.25) - 9 - 24)$

$Area = \frac{1}{2}(40.5 - 9 - 24)$

$Area = \frac{1}{2}(7.5)$

$Area = 3.75 in^2$

8 0

4 years ago