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4 years ago

Determine that 4/16 and 5/20 forms as proportional relationship.

Mathematics

2 answers:

Sergio [31]4 years ago

6 0

Answer:

Those two are 0.25

4/16 = 1/4

5/20 = 1/4

Alenkasestr [34]4 years ago

5 0

Answer: Please Give Me Brainliest, Thank You!

4/16 = 5/20 = 1/4

Step-by-step explanation:

Because If you divide 4 and 16 by 4 you get 1/4 and if you divide 5 and 20 with 5 you get 1/4

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According to the 2011 National Survey of Fishing, Hunting, and Wildlife-Associated Recreation, there were over 71 million wildif

suter [353]

Answer:

The probability that between 79% and 81%of the 500 sampled wildlife watchers actively observed mammals in 2011 is P=0.412.

Step-by-step explanation:

We know the population proportion π=0.8, according to the 2011 National Survey of Fishing, Hunting, and Wildlife-Associated Recreation.

If we take a sample from this population, and assuming the proportion is correct, it is expected that the sample's proportion to be equal to the population's proportion.

The standard deviation of the sample is equal to:

$\sigma_s=\sqrt{\frac{\pi(1-\pi)}{N}}=\sqrt{\frac{0.8*0.2}{500}}=0.018$

With the mean and the standard deviaion of the sample, we can calculate the z-value for 0.79 and 0.81:

$z=\frac{p-\pi}{\sigma}=\frac{0.79-0.80}{0.018} =\frac{-0.01}{0.018} = -0.55\\\\z=\frac{p-\pi}{\sigma}=\frac{0.81-0.80}{0.018} =\frac{0.01}{0.018} = 0.55$

Then, the probability that between 79% and 81%of the 500 sampled wildlife watchers actively observed mammals in 2011 is:

$P(0.79$

3 0

3 years ago

PLEASEEEE ANSWERRR FASTTTT!!!!!!!!!!What is the equation of the line whose graph is shown?

Mamont248 [21]

Answer:

Step-by-step explanation:

The equation of a line passing through the origin is

y = mx ( m is the slope )

To find m use the slope formula

m = ( y₂ - y₁ ) / ( x₂ - x₁ )

with (x₁, y₁ ) = (1, 1) and (x₂, y₂ ) = (- 1, - 1) ← 2 points on the line

m = $\frac{-1-1}{-1-1}$ = $\frac{-2}{-2}$ = 1

y = x ← is the equation of the line → A

8 0

4 years ago

Find the distance between the two points in simplest radical form.<br> (-1,0) (8,-5)

ivanzaharov [21]

$~~~~~~~~~~~~\textit{distance between 2 points} \\\\ (\stackrel{x_1}{-1}~,~\stackrel{y_1}{0})\qquad (\stackrel{x_2}{8}~,~\stackrel{y_2}{-5})\qquad \qquad d = \sqrt{( x_2- x_1)^2 + ( y_2- y_1)^2} \\\\\\ d=\sqrt{[8 - (-1)]^2 + [-5 - 0]^2}\implies d = \sqrt{(8+1)^2+(-5)^2} \\\\\\ d = \sqrt{81+25}\implies d = \sqrt{106}$

5 0

3 years ago

How is adding 6+3 like adding 60+30

storchak [24]

Answer:

because your just adding a zero at the end.

Step-by-step explanation:

3 0

3 years ago

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When multiplying or dividing integers, if the signs are the same, you keep the sign for the answer

Diano4ka-milaya [45]

Answer:

False

Step-by-step explanation:

If you were to divide a negative number by a negative number, or multiply a negative number by a negative number, you would change the sign to positive as two negatives make a positive.

6 0

3 years ago

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