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2 years ago

9

Which is the most effective way to obtain a random sample of your school population

1 answer:

Ierofanga [76]2 years ago

8 0

Ask every fifth person that exits the school
(systematic random)

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Factor completely: (3a+6)^2

zvonat [6]

(3(a+2))^2 factored

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2 years ago

F(x) =X/2<br> +8, what is f(x) when x = 10?<br> 04<br> 0<br> O 13<br> O 36

Blababa [14]

The answer is thirteen

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2 years ago

Read 2 more answers

An identification code is to consist of 2 letters followed by 3 digits. how many different codes are possible if repetition is p

Vedmedyk [2.9K]

I like the 'question mark' at the end:

26 letters (English), 10 digits (0,1,...9)

26*26*10*10*10 = 676000

Now, this was for LLDDD (Letter Letter Digit Digit Digit)

It seems this is the order they want. Other wise, one should multiply by all the combinations in the order: LDLDD, DLLDD, etc ... (10 combinations), but again it seems they want this LLDDD

So 676000

5 0

3 years ago

Maria calls her mother 5 times every week. Let w represent the number of weeks and c represent the total number of times Maria c

galina1969 [7]

Answer:

Equation: 5w = c

Step-by-step explanation:

${ \tt{w \: \alpha \: c}} \\ { \tt{w = kc}}$

k is a constant of proprtionality

${ \tt{1 = (k \times 5)}} \\ { \tt{k = \frac{1}{5} }}$

» Therefore, equation becomes:

${ \tt{w = \frac{1}{5}c }} \\ \\ { \boxed{ \tt{5w = c}}}$

8 0

2 years ago

Which figure represents the final image after composition t3, -1 is applied to rectangle

harkovskaia [24]

Answer:T-3, -1 applied to a rectangle hm

Step-by-step explanation:

Well why don't you just GOOGLE IT

4 0

2 years ago