3 years ago

Is 0.15783456 rational or irrational

Mathematics

2 answers:

loris [4]3 years ago

6 0

The problem is a irrational number

RideAnS [48]3 years ago

6 0

Irrational,a rational number is a whole number or a simple repeating number like 2.33 repeating

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kupik [55]

Answer:

We can assume that the decline in the population is an exponential decay.

An exponential decay can be written as:

P(t) = A*b^t

Where A is the initial population, b is the base and t is the variable, in this case, number of hours.

We know that: A = 800,000.

P(t) = 800,000*b^t

And we know that after 6 hours, the popuation was 500,000:

p(6h) = 500,000 = 800,000*b^6

then we have that:

b^6 = 500,000/800,000 = 5/8

b = (5/8)^(1/6) = 0.925

Then our equation is:

P(t) = 800,000*0.925^t

Now, the population after 24 hours will be:

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2 years ago

In your biology class, your final grade is based on several things: a lab score, scores on two major tests, and your score on th

Serggg [28]

Answer:

The weighted average is of 69.94.

Step-by-step explanation:

Weighted average:

The weighed average is found multiplying each grade by its respective weight.

The grades, and weights are:

67 on the lab, with a weight of 23% = 0.23

69 on the first major test, with a weight is 21.5% = 0.215

85 on the second major test, with a weight is 21.5% = 0.215.

63 on the final exam, with a weight of 34% = 0.34.

Weighted average:

$A = 0.23*67 + 0.215*69 + 0.215*85 + 0.34*63 = 69.94$

The weighted average is of 69.94.

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3 years ago

Solve for x 4c-4<8 and 9x+5>23

Alja [10]

Answer: 4c-4<8 = c<3 9x+5>23= x>2

(2,3)

Step-by-step explanation:

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2 years ago

What is the measure of <4?

maria [59]

Answer:

i not sure but i think its 125

Step-by-step explanation

60% sure is 125

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3 years ago

If x represents a number,does 2/5 .x always represent 40% of the number

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Answer:

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Step-by-step explanation:

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3 years ago

Read 2 more answers