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Naddika [18.5K]

3 years ago

6

When you draw a multi-phase sample ____. Group of answer choices

1 answer:

notsponge [240]3 years ago

8 0

Answer:

The correct answer is letter "B": You use information from a first sample for collecting a subsequent subsample for further study.

Explanation:

Multi-phase sampling is a strategy by which a large number of data under study is taken, then a subsample of that pool is taken, and after that, another smaller subsample is taken in an attempt to count with samples that best might represent the whole population. Usually, the process takes collecting two different samples, but it can be applied as many times as necessary.

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if merissa and angie each rode their bike 7km on Monday and 8km on friday what is the total distance rode in the two days

gogolik [260]

Answer:

15km

Step-by-step explanation:

7km + 8km = 15km.

4 0

3 years ago

If 445 to base n is equal to 173,find the value of n

Troyanec [42]

Answer:

6

(4×n²) + (4×n¹) + (5×n^0) = 173

4n² + 4n + 5 = 173

4n² + 4n = 168

divide through by 4

n² + n - 42 = 0

n² + 7n - 6n - 42= 0

(n + 7)(n - 6) = 0

n = -7 or 6

but the solution is 6 since base is not negative.

6 0

3 years ago

How many boxes of of candy would you use if you had 80 pieces of candy

Aleksandr-060686 [28]

Answer:2

Step-by-step explanation:

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5 0

3 years ago

Analyze the diagram below and complete the instructions that follow. Find a, b, and c.

ahrayia [7]

Answer:

<u>The correct answer is the letter C. </u>

Step-by-step explanation:

We can use the following trigonometric identity:

$cos(60)=\frac{6}{b}$ (1)

$cos(45)=\frac{c}{b}$ (2)

Solving each equation by b and equaling we have:

$\frac{6}{cos(60)}=\frac{c}{cos(45)}$

$\frac{6}{cos(60)}=\frac{c}{cos(45)}$

Let's recall that:

$cos(45)=\frac{1}{\sqrt{2}}$

$cos(60)=\frac{1}{2}$

Then we have:

$c=\frac{cos(45)*6}{cos(60)}$

$c=\frac{2*6}{\sqrt{2}}$

$c=\frac{12}{\sqrt{2}}$

$c=6\sqrt{2}$

Using equation (1) we can find b.

$cos(60)=\frac{6}{b}$

$b=12$

Finally, we can find a using the next equation:

$tan(60)=\frac{a}{6}$

$a=6*tan(60)$

$a=6\sqrt{3}$

<u>Therefore, the correct answer is the letter C. </u>

I hope it helps you!

5 0

3 years ago

If f(x)=−3x2−5x+1 , what is f(3)?

rjkz [21]

Answer:

-41

Step-by-step explanation:

you put 3 in place of x. So where x is you put 3. Then simplify. Let me know if you need further explanation

7 0

3 years ago