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2 years ago

If k=, then what is –K?

Mathematics

2 answers:

krok68 [10]2 years ago

5 0

Answer: -k

Step-by-step explanation:

mihalych1998 [28]2 years ago

3 0

Answer: the third one

Explanation: all the ones that were positive when it was equal to k was negative, and vice versa.

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The population of a town is 6500 and is increasing at a rate of 4% each year. Create a function for this scenario. At this rate,

Stella [2.4K]

Answer:

$P_4 = 7604.08$

Step-by-step explanation:

If the population increases at a rate of 4% per annum, then:

In year 1:

$P_1 = P_0 + 0.04P_0$

Where $P_0$ is the initial population and $P_n$ is the population in year n

In year 2

$P_2 = P_1 + 0.04P_1$

It can also be written as:

$P_2 = P_0 + 0.04P_0 + 0.04 (P_0 + 0.04P_0)$

Taking out common factor $P_0$

$P_2 = (1 + 0.04) (P_0) + 0.04P_0 (1 + 0.04)$

Taking out common factor (1 + 0.04)

$P_2 = (1 + 0.04) (P_0 + 0.04P_0)$

Taking out again common factor $P_0$

$P_2 = (1 + 0.04) (1 + 0.04) P_0$

Simplifying

$P_2 = P_0 (1 + 0.04) ^ 2$

$P_n = P_0 (1 + 0.04) ^ n$

This is the equation that represents the population for year n

Then, in 4 years, the population will be:

$P_4 = P_0 (1 + 0.04) ^ 4\\P_4 = 6500(1 + 0.04) ^ 4\\P_4 = 7604.08$

3 0

3 years ago

1 quart=4 cups (whats the answer?)

Sever21 [200]

Answer:

1quart 4cups =8quatcups

Step-by-step explanation:

thanks:)

7 0

2 years ago

Read 2 more answers

The graph shows the number of paintballs a machine launches, y, in x seconds:

aalyn [17]

The answer is B, 20 balls in 4 seconds. Or 5 balls per second.

5 0

2 years ago

I'm giving brainliest to best answer

Natali5045456 [20]

Answer:

2) 62.5 wpm

3) 12.7 miles per gallon

4)18 commercials per hour

5) 22.9 ounces per dollar

Step-by-step explanation:

2) 500 words / 8 minutes = 62.5 words per 1 minute

3) 216 miles / 17 gallons = 12.7 miles per gallon

4) 36 commercials / 2 hours = 18 commercials per hour

5) 64 oz / $2.79 = 22.9 oz per $1

3 0

3 years ago

There are 30 students in the drama club.They are carpooling in 5 cans to perform a play.They want each van to carry an equal num

sertanlavr [38]

Answer:

30=5x

Step-by-step explanation:

divide by 5 on both sides

30/5=5x/5

x=6

5 0

2 years ago