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3 years ago

How many prime numbers are between 0 and 20?

Mathematics

2 answers:

Ivenika [448]3 years ago

6 0

Answer:

There are 8 prime numbers between 0 and 20

Scorpion4ik [409]3 years ago

4 0

Answer:

从 1 到 20 有 8 个素数。它们列在下面：2、3、5、7、11、13、17 和 19。

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The following are the ages (years) of 5 people in a room: 19, 13, 25, 14, 18 A person enters the room. The mean age of the 6 peo

Sergio [31]

Answer:

Step-by-step explanation:

18 x 6 = 108

19 + 13 + 25 + 14 + 18 = 89

108 - 89 = 19

6 0

3 years ago

The population of Kings County, New York, has increased 0.53% each year, over several years. The population in 2000 was 2,465,32

Deffense [45]

We have been given that population of Kings County, New York, has increased 0.53% each year, over several years. The population in 2000 was 2,465,326.

Formula to find population growth: $N=N_0(1+r)^{t}$

Now we will find expected population of year 2015 by substituting t=15 in our given formula.

$2,465,326(1+0.0053)^{15}$

$2,465,326(1.0053)^{15}$

$2,465,326\cdot 1.0825182787557597$

$2668760.45809\approx 2668760$

Therefore, expected population in year 2015 will be 2668760.

7 0

3 years ago

What is the solution to the portion X 4/12 = 10/X

ElenaW [278]

The solution to the proportion X is 30.

7 0

3 years ago

Given that f (x)=x/2+5 find f(2)

fgiga [73]

Answer:

f(2) = 6

Step-by-step explanation:

Given that the function

$f(x) = \frac{x}{2} + 5$

Put x=2

$f(2) = \frac{2}{2} + 5 = 1 +5 = 6$

f(2) = 6

3 0

3 years ago

How do i solve this ? :')

Vesna [10]

I think you are supposed to make the fraction equivalent so you know that 27/9 is 3, so you would do the same thing whatever number is supossed to be under 17 needs to equal to 2 when divided by 9. So you should probably know that 3 * 9 is 18 so x needs to be a number that when subtracted by 5 gives you 18. So x=23. Hope this is right and it helps!

4 0

4 years ago