Answer: Yes, it would be biased. If David asked the question about movies, however, it would not be.
Step-by-step explanation: It would be biased because he is asking listeners to his show who send fan mail. Fan mail is typically only sent by people who enjoy the creator. Therefor, he would be surveying only people who enjoy his podcast so the results would be heavily biased. I am unsure about how the second part of the question relates to the first part. If David were to ask the same 100 individuals about their favorite movies rather than whether or not they liked his podcast, it would not contain biased results because he or his podcast does not have anything to do with movies. :)
you subtract the powers when dividing
therefore 7-(-4)
=7+4
=11
=x^11
Answer:
let p = cost of 1 plain wrapping paper
let h = cost of 1 shiny rolls wrapping paper
Write an equation for each statement,
" Eugene sold 3 rolls of plain wrapping paper and 11 rolls of shiny wrapping paper for a total of $168 "
<em>3</em><em>p</em><em> </em><em>+</em><em> </em><em>1</em><em>1</em><em>h</em><em> </em><em>=</em><em> </em><em>$</em><em>1</em><em>6</em><em>8</em><em> </em>
<em>Jill </em><em> sold </em><em>1</em><em>0</em><em> </em><em> rolls of plain wrapping paper and 1</em><em>1</em><em> </em><em>rolls</em><em> of </em><em>shiny </em><em> wrapping paper for a total of </em><em>$</em><em>2</em><em>5</em><em>2</em><em>."</em>
<em>1</em><em>0</em><em>p + 1</em><em>1</em><em>h = </em><em>$</em><em>2</em><em>5</em><em>2</em><em> </em>
Use elimination here,
10p + 11h = $252
3p + 11h = $168
subtraction eliminates h, find p
7p = $84
p = 84/7
p = $12 for wrap of plain paper
Find h using the 1st original equation
3(12) + 11h = 168
36+ 11h = 168
11h = 168 - 36
11h = 132
h = 132/11
h = $12 for shiny wrapping paper
Therefore each plain wrapping paper costs $12 and each shiny wrapping paper costs same $12 !
Answer:
B) -0.4 seconds
Step-by-step explanation:
Laps: 25
Goal: -10 seconds to all 25 laps combined (10 seconds difference => -10)
divide by total laps
-10 /25 = -0.4s difference each lap