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3 years ago

1. Find the mean for 2, 5, 9, 4

Mathematics

2 answers:

Reil [10]3 years ago

6 0

Answer:

Answer 1. 5 Answer 2. 60 Answer 3. 37

Step-by-step explanation:

PilotLPTM [1.2K]3 years ago

5 0

Answer:

1. 5

2. 60

3. 37

Step-by-step explanation:

To find the mean you must add up all the numbers you have in the number set and then divide by the amount of numbers you have in the number set. For example, for number one you add 2+5+9+4, which equals 20, then divide by 4 because that is how many numbers you have in the set. After dividing 20 by 4 you should get 5.

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Carl owns a horse trailer that can transport up to 8000 pounds of livestock and tack.

bija089 [108]

1st One

Reason: The total weight of the horses is 6240 and the weight of the tack is unknown. We know the max weight is 8000 so we know the total weight must be less then 8000

We know that the horses and tack must be equal or less than 8000

6240+t <(equal or less than) 8000

8 0

3 years ago

Jorge and Mary are both filling cups with fruit punch in preparation for a party. After 3 minutes, Jorge had 53 cups left to be

Paul [167]

Answer:

D) Mary is filling 36 cups per min, which is faster than Jorge

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3 years ago

Read 2 more answers

The population of a town doubled approximately every 5 years during the first several decades after it was founded. If the origi

zzz [600]

Answer:

624 people

(I put two ways to look at the problem.)

Step-by-step explanation:

What is describe here is an exponential function of the form:

$P=P_0 e^{kt}$

$t$ is the number of years after 1761.

$P_0$ is the initial population.

So t=0 represents year 1761.

t=1 represents year 1762

t=2 represents year 1763

....

t=20 represents year 1781.

So we have the doubling time is 5 years. This means the population will be twice what it was in 5 years. Let's plug this into:

$P=P_0e^{kt}$

$2P_0=P_0e^{k\cdot 5}$

Divide both sides by $P_0$ :

$2=e^{5k}$

Convert to logarithm form:

$5k=\ln(2)$

Multiply both sides by 1/5:

$k=\frac{1}{5}\ln(2)$

$k=\ln(2^{\frac{1}{5}})$ By power rule.

So in the next sentence they actually give us the initial population and we just found k so this is our function for P:

$P=39e^{\ln(2^{\frac{1}{5}})t}$

So now we plug in 20 to find how many residents there were in 1761:

$P=39e^{\ln(2^{\frac{1}{5}})(20)}$

This is surely going to the calculator:

$P=624$

Now if you don't like that, let's try this:

Year 0 we have 39 people.

Year 5 we have 39(2)=78 people.

Year 10 we have 78(2)=156 people.

Year 15 we have 156(2)=312 people.

Year 20 we have 312(2)=624 people.

7 0

3 years ago

PLEASE HELP THIS IS THE LAST QUESTION AND I WANT TO GO TO BED. PLEASE EXPLAIN SO I CAN DO IT FOR NEXT TIME AS WELL

rewona [7]

15+70+45=130 :)) that’s how u calculate the perimeter just add them all together.

7 0

3 years ago

. Write the quadratic equation in factored form. Be sure to write the entire equation. x^2 - 5x - 24 = 0

Viefleur [7K]

Answer:

$(x+3)(x-8)=0$

Step-by-step explanation:

First, write out the equation as it is given in the problem:

$x^{2}-5x-24=0$

Now, you have to split up the "-5x" to get to factored form. The way to do this is to look for <em>the factors of "a" times "c" that sum to "b"</em>:

So, in this problem, a=1, b=-5, and c=-24. So, find the factors of (1*-24) that sum to (-5). To clarify, (1*-24)=-24, so you have to find factorsof -24 that sum to -5.

Let's write out a list of factors.

$1,-24---1+-24=-23no\\-1,24---1+24=23no\\2,-12---2+-12=-10no\\-2,12----2+12=10no\\3,-8---3+-8=-5yes$