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3 years ago

Write the name of the period that has the digits 486

Mathematics

1 answer:

Airida [17]3 years ago

7 0

it is called ones period system .this is based on international system of numeration.

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Find the equation of the line through the points (-2,1) and (5,-20)

ankoles [38]

Answer:

y = -3x - 5

Step-by-step explanation:

First find the slope: (-20 - 1) / (5 - (-2)) = -3

Then plug in one set of points into the equation y = mx + b.

1 = -3(-2) + b

1 = 6 + b

b = -5

So you can get the equation: y = -3x - 5

5 0

2 years ago

Between 1965 and 1980, the world population grew at an annual rate of 2%. Using the rule of 72, population is expected to double

Fiesta28 [93]

Answer:

The population is expected to double in 36 years

Step-by-step explanation:

According to the the rule of 72,

A value is doubled if the product of the annual rate and number of years is 72,

Given,

The annual rate of interest = 2%

Let x be the time in years after 1965,

By the above statement,

The population will double if,

x × 2 = 72 ⇒ x = 36

Hence, the after 36 years since 1965 the population will be doubled,

i.e in 2001. ( ∵ 36 years after 1965 )

4 0

3 years ago

How to solve monomials

rewona [7]

You can't solvd monomials because they are just 1 term multiplication :
example: 2a , or 14

8 0

3 years ago

There are 6 girls and 8 boys invited to the party. What is the ratio of girls to boys

Ber [7]

Answer:

6:8

6/8 or 3/4

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

The random variable X~(30,2^2) Find p(X<33) Find p(X>26)

Ostrovityanka [42]

Answer:

i) P(X<33) = 0.9232

ii) P(X>26) = 0.001

Step-by-step explanation:

Step(i):-

Given that the mean of the Population = 30

Given that the standard deviation of the Population = 4

Let 'X' be the Normal distribution

Step(ii):-

Given that the random variable X = 33

$Z = \frac{x-mean}{S.D}$

$Z = \frac{33-30}{2} = 1.5$ >0

P(X<33) = P( Z<1.5)

= 1- P(Z>1.5)

= 1 - ( 0.5 - A(1.5))

= 0.5 + 0.4232

P(X<33) = 0.9232

Step(iii) :-

Given that the random variable X = 26

$Z = \frac{x-mean}{S.D}$

$Z = \frac{33-26}{2} = 3.5$ >0

P(X>26) = P( Z>3.5)

= 0.5 - A(3.5)

= 0.5 - 0.4990

= 0.001

P(X>26) = 0.001

5 0

2 years ago