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3 years ago

If you know the answer to this question please help!! ASAP I will give brainiest! Fr

Mathematics

1 answer:

leonid [27]3 years ago

6 0

Answer:

In five years, the enrollment would have been 10,724 students

Step-by-step explanation:

The general depreciation formula is given as;

P = I( 1 - r)^t

where P is the present population

I is the initial

r is the rate of depreciation = 4.5% = 4.5/100 = 0.045

t is 5 years

substituting these values;

P = 13,500 (1- 0.045)^5

P = 10,723.84

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The histogram shows the distribution of hurricanes that have hit a country from 1851 through 2015, where 1 is the weakest level

aleksandrvk [35]

Answer:

a) mean = 0.2

variance = 0.0391

standard deviation = 0.198

b) The average hurricane is aprox. category 2.* (B)

Step-by-step explanation:

In order to find the mean, variance, and standard deviation, let us for a table for the data:

level x

1 0.411

2 0.278

3 0.221

4 0.080

5 0.010

Calculating the mean ( $\bar{x}$ )

$\bar{x} = \frac{x_1+x_2+x_3+x_4 + x_5}{n}\\\\\bar{x} = \frac{0.411 + 0.278 + 0.221 + 0.080 + 0.010}{5}\\\bar{x} = \frac{1}{5}\\ \bar{x} = 0.2$

∴Mean = 0.2

level x $x- \bar{x}$ $(x - \bar{x})^2$

1 0.411 0.211 0.0445

2 0.278 0.078 0.0608

3 0.221 0.021 0.000441

4 0.080 -0.12 0.0144

5 0.010 -0.19 0.0361

$\sum(x - \bar{x})^2 = 0.1562$

$variance = \frac{\sum(x - \bar{x})^2}{n-1} \\variance = \frac{0.1562}{4} \\variance = 0.0391$

standard deviation = √(variance)

Standard deviation = √(0.0391)

Standard deviation = 0.198

b) the average hurricane is aprox. category 2 (B)

8 0

3 years ago

What is the answer to -4+4?

natulia [17]

Answer:

the answer is 0, have a nice day

5 0

2 years ago

Read 2 more answers

Answer the first word problem please! And show work

Travka [436]

Answer:

b= 9.17 ft

Step-by-step explanation:

The 4 feet from the wall is the bottom part of the triangle. The 10 ft. ladder is the hypotenuse of the triangle. Use the Pythagorean Theorem and substitute the known values.

a^2+b^2=c^2

4^2+b^2=10^2

Then square all the known values

16+b^2=100

Then get b by itself

b^2=-16+100

add -16 and 100

b^2=84

and finally square root both sides of the equation

b=9.16515 ft or 9.17 ft

6 0

3 years ago

I need help know please

maxonik [38]

Answer:

Step-by-step explanation:

4. intersecting

5. intersecting

6. intersecting

7.???

8.same line

4 0

3 years ago

What’s 2x+3+3x-7=4c+15

Alik [6]

good luck hope you pass

5 0

3 years ago