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3 years ago

SETTING:

1 answer:

azamat3 years ago

5 0

How much did the ratio change for 2009 and 2010, say there's a linear change between the years so how much did it change from 2008 to 2009...

organize your information... tagged *2008: 40 *2009: 16 *2010: 8 total caught *2009: 50 *2010: 30 Now, you can compare them. Like so, let's use the first one. You can compare the ratio of 16/40 = 50 / x where x is the total population so basically, the proportion above represents that 16 of the 40 tagged were caught and it relates proportionately to the number of turtles caught out of the entire population of turtles that were currently there in 2009. Now, you can cross multiply to get this... 16/40= 50/x 16x = 2000 then divide by 16 x = 125 125 represents the total population Set up the other proportion just likes this and you should be able to get the population for 2010 as well. There are other ways to set it up though if you want to experiment on your own. Hope this helped.

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I'm having trouble figuring out what the difference between two positive numbers are. The numbers are 3.9 and 8.3 and I'm not su

Tju [1.3M]

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and that equals 4.4<span />

8 0

3 years ago

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As voters exit the polls, you ask a representative random sample of voters if they voted for a proposition. If the true percenta

tresset_1 [31]

Answer:

The probability is 0.057797

Step-by-step explanation:

Consider the provided information.

It is given that true percentage of voters who vote for the proposition is 63%,

Let p is probability of success.

According to the binomial distribution:

$P(x;p,n)=^nC_x(p)^x(1-p)^{(n-x)}$

Substitute n=7, p=0.63 and x=2 in the above formula.

$P(x;p,n)=^7C_2(0.63)^2(1-0.63)^{(7-2)}$

$P(x;p,n)=\frac{7!}{2!5!}(0.3969)(0.37)^{5}\\P(x;p,n)=21(0.3969)(0.37)^{5}\\P(x;p,n)=0.0577974947199\\P(x;p,n)\approx0.057797$

Hence, the probability is 0.057797

8 0

3 years ago

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lana66690 [7]

Your answer would be 2

7 0

3 years ago

How many feet are in 1 yard? i yard is how many feet

Katena32 [7]

There are 3 feet in one yard

3 0

3 years ago

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If the length of segment AC equals 58, what is the length of the midsegment DE

Delicious77 [7]

Answer:

B) 29

Step-by-step explanation:

Given:

AC= 58

Point D and E are the midpoints of side AB and BC Respectively.

Solution:

According to Midpoint theorem which states:

"The segment joining two sides of a triangle at the midpoints of those sides is parallel to the third side and is half the length of the third side."

$\therefore$ DE= $\frac{1}{2}$ AC

DE= $\frac{58}{2} =29$

Hence length of DE is 29.

4 0

4 years ago

Read 2 more answers