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2 years ago

Rich chooses a 4-digit positive integer. He erases one of the digits of this integer. The

Mathematics

1 answer:

tiny-mole [99]2 years ago

4 0

Answer:

*step by step*

Step-by-step explanation:

If he erases one of the digits in a 4-digit number, then only 3 remain, not four.

If he erased the first digit, then it must have been 1-9, so the total is in the range 11 - 19

otherwise the digit could have been 0-9 in which case the total is in the range 10-19

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n 2000 the population of a small village was 2,400. With an annual growth rate of approximately 1.68%, compounded continuously,

Nitella [24]

Answer:

The population would be 3358

Step-by-step explanation:

Since, exponential growth function if the growth is compound continuously,

$A = Pe^{rt}$

Where,

P = initial population,

r = growth rate per period,

t = number of periods,

Given,

The population in 2000, P = 2,400,

Growth rate per year = 1.68% = 0.0168,

Number of years from 2000 to 2020, t = 20,

Thus, the population in 2020,

$A=2400 e^{0.0168\times 20}$

$=2400 e^{0.336}$

$= 3358.4136$

$\approx 3358$

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3 years ago

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Answer:

2.6

Step-by-step explanation:

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3 years ago

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Give an example of a real world situation for which there could be a positive correlation

Talja [164]

The sunnier it is outside, the more sunglasses will be worn ☀️

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3 years ago

There was a sale for sweaters 40% of the actual price. Abby saved $20 for one sweater. What was the actual price?

Montano1993 [528]

Answer:

$50

Step-by-step explanation:

When finding sales price you multiply. But here we are finding the original price. So now you do the opposite, divison.

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3 years ago