Write the answer in interval notation

Determine which type of sampling is most appropriate. Biologists divide the regions where Red foxes are found into the Nearctic

anzhelika [568]

Answer:

The sampling technique used here is Stratified random sampling.

Step-by-step explanation:

Stratified random sampling is a sampling procedure where the researcher first divided the entire population into groups, known as strata. These groups are homogeneous in nature.

Then from these strata a simple random sample of individuals are selected.

In this case the Biologist first divide the entire region of Red foxes into various groups. Then he samples 100 female foxes from each of these groups.

This is an example of stratified sampling.

Thus, the sampling technique used here is Stratified random sampling.

4 0

4 years ago

Julie went to the store with $20.00. if she bought 8 cans of dog food for $.67 per can, how much money did she have left? IF YOU

Georgia [21]

Answer:

$14.64

Multiply 8 by .67 which is 5.36

Subtract 5.36 from 20.00 and that's 14.64

6 0

4 years ago

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Find the value of the following expression: (2^8 • 5^-5 • 19^0)^-2 • (5^-2 over 2^3)^4 • 2^28. Write your answer in simplified f

DaniilM [7]

Recognize that "( ) over 2^3" means ( ) • 2^-3. Use the rule of exponents
.. (a^b)^c = a^(b•c)

= 2^-16•5^10•19^-2 • 5^-8*2^-12 • 2^28

Now, you can use the rule of exponents
.. (a^b)*(a^c) = a^(b+c)

= 2^(-16 -12 +28) • 5^(10 -8) • 19^-2
= 5^2 • 19^-2
= 5^2 / 19^2
= 25/361

3 0

4 years ago

How do I solve for x

Serggg [28]

Answer:

x=-4

Step-by-step explanation:

The angles have to equal eachother, so:

130=134+x

subract 134 from both sides

-4=x

4 0

3 years ago

Is there a specific rule to follow when dividing simplified fractions? i mean if you were to have the numerator and demoninator

Margaret [11]

Answer:

Step-by-step explanation:

This method consists of multiplying the numerator of the first fraction by the denominator of the second fraction and then writing the answer in the resulting fraction’s numerator.

Next, we multiply the denominator of the first fraction by the numerator of the second fraction, and then write the answer in the resulting fraction’s denominator*.

Lastly, we simplify the final fraction.

For example, in order to divide the fraction

dividing fractions

We multiply the numerator of the first fraction (3) by the denominator of the second fraction (10). This gives us the numerator for the final fraction: 3 x 10 = 30.

Next, we multiply the denominator of the first fraction (4) by the numerator of the second fraction (6). This gives us the denominator of the final fraction: 4 x 6 = 24.

dividing fractions

The last step is to simplify the fraction. Since both numbers are multiples of 6, we can divide the numerator and denominator by 6.

30 ÷ 6 = 5

24 ÷ 6 = 4

Therefore, the result of the division is 5/4.

dividing fractions

Method 2 of dividing fractions: Inverting and multiplying

Step 1: Invert the second fraction. That is, swap the numerator for the denominator.

Step 2: Simplify any numerator with any denominator.

Step 3: Multiply across.

For example, we are going to divide:

dividing fractions

Step 1: We invert the second fraction 6/4. This becomes 4/6.

Step 2: We simplify the numerators with the denominators.

Numerators are:

12 = 2 x 2 x 3

4 = 2 × 2

Denominators are:

5 = 5

6 = 2 × 3

We can simplify both from numerator and denominator a 2 and a 3. We call this process “cross canceling” if one numerator has a common factor with the other denominator.

And we multiply across:

dividing fractions

7 0

3 years ago

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