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4 years ago

12

You want to estimate the number of students in a junior high school who ride the school bus. Which sample is unbiased? PLEASE HE

LP!!!

1 answer:

Tanzania [10]4 years ago

8 0

I would say C. This is because these students are the first 50 who are on the roster & has nothing to do with either side.

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natima [27]

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2 years ago

Simplify the following expression : (2x + 7y) (x – 3y) – (9x + 4) (3x - 2)

Dmitriy789 [7]

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3 years ago

4. k/6 = 8/16 5. 5.4/7 = 27/h 6. 8/11 = 4/y+2

kupik [55]

Answer:

4. $k=3\\$

5. $h=35$

6. $\frac{7}{2}$ or 3.5

Step-by-step explanation:

$\frac{k}{6}=\frac{8}{16}$

Multiply those 2 values whose diagonal has both terms and divide by the term whose diagonal has the variable.

$k=\frac{8*6}{16}\\ k=\frac{48}{16}\\ k=3$

-----------------------------------------------------------------------

$\frac{5.4}{7}=\frac{27}{h}$

$h=\frac{7*27}{5.4} \\h=\frac{189}{5.4}\\ h=35$

-------------------------------------------------------------------------

$\frac{8}{11}=\frac{4}{y+2}$

$y+2=\frac{11*4}{8}\\ y=\frac{11*4}{8}-2\\y=\frac{44}{8}-2 \\y=\frac{11}{2}-2\\ y=\frac{11-2*2}{2}\\ y=\frac{11-4}{2}\\ y=\frac{7}{2}=3.5$

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3 years ago

Solve for d in terms of r

Zarrin [17]

Hello!

Answer:

d=2r

Step-by-step explanation:

Simplify both sides and isolate the variable.

Hope this helps!

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3 years ago

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