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3 years ago

5

You want to estimate the number of students in your school who support extra funding for the science club. You survey every seco

nd student who enters the school. Determine whether the sample is biased or unbiased. biased unbiased

1 answer:

OlgaM077 [116]3 years ago

4 0

This sample is unbiased.

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Assume that y varies inversely with x. If y=1/3 when x=1/2, find y when x=1/4.

LenKa [72]

Answer:

y = $\frac{2}{3}$

Step-by-step explanation:

Given that y varies inversely with x then the equation relating them is

y = $\frac{k}{x}$ ← k is the constant of variation

To find k use the condition y = $\frac{1}{3}$ when x = $\frac{1}{2}$ , thus

$\frac{1}{3}$ = $\frac{k}{\frac{1}{2} }$ = 2k ( divide both sides by 2 )

k = $\frac{1}{6}$

y = $\frac{1}{6x}$ ← equation of variation

When x = $\frac{1}{4}$ , then

y = $\frac{1}{6(\frac{1}{4}) }$ = $\frac{1}{\frac{3}{2} }$ = $\frac{2}{3}$

3 0

3 years ago

There is one fifth of a sandwich to share equally between 2 people. How much of the sandwich will each person get? Use the numbe

babunello [35]

Answer:

one tenth of a sandwich

Step-by-step explanation:

4 0

3 years ago

Given that a fair coin is tossed 3 times and X denotes the number of heads in each outcome. what is P (X=3)?

Nadusha1986 [10]

Answer:

b

Step-by-step explanation:

5 0

3 years ago

7. I am currently 5 times as old as my daughter. In 6 years from now. I will be three times as old she will be then. Find our cu

xxTIMURxx [149]

Answer:

Daughter is 6 , mother is 30.

Step-by-step explanation:

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2 years ago

You have to evaluate<br> 3³+11-10÷2×4=w

denis23 [38]

Answer:

18

<u><em>Brainliest, please!</em></u>

Step-by-step explanation:

3^3 + 11 - 10 / 2 x 4 = w

27 + 11 - 10 / 2 x 4 = w

27 + 11 - 5 x 4 = w

27 + 11 - 20 = w

38 - 20 = w

w = 18

3 0

3 years ago