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Nataliya [291]
4 years ago
8

Im certain country, the life expactancy of a woman born in 1995 was 80.2 years. Between 1995 and 2005, the life expectancy incre

ased 0.4 years every 5 years. a. If L represent the life expectancy of a woman born in 2005, what equation could you use to represent the situation? b. Could two different equation be ise to find the value of L? Explain.
Mathematics
1 answer:
rosijanka [135]4 years ago
4 0

Answer:

L = 80.2 + 2(0.4)

(b) No, one linear equation will be sufficient to solve the problem. Because it is not two statements of equation

Step-by-step explanation:

Between 1996 and 2005, there is 10 years difference.

It is given in the question that the life expectancy increases by 0.4 every five years.

Between 1996 and 2005, life expectancy of woman born will increase by 2x0.4 = 0.8.,

In 2005, the life expectancy of woman born is:

L = 80.2 + 0.8 = 81.0 years

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2 years ago
When playing roulette at the Venetian casino in Las Vegas, a gambler is trying to decide whether to bet $5 on the number 27 or t
cricket20 [7]

Answer:

Step-by-step explanation:

Given that:

To bet $5 that the outcome is any one of these five possibilities: 0, 00, 1, 2, 3.

Let Y represent the Amount of net profit

Then, Y= {-5, 30}

The probability distribution of Y is:

Y                        -5                        30

P(Y=y)                \dfrac{33}{38}                        \dfrac{5}{38}

a)  The expected value of X is given by:

E[Y] =\sum y P(Y=y)= 30*\dfrac{5}{38}-5*\dfrac{33}{38}

=-0.39

= -39 \ cents

b)

On a bet of $5 on the number 25 we are expected to loose 24 cents.

While on a $5 bet that the outcome is any one of the numbers 0,00, or 1 we are expected to loose 39 cents.

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6 0
3 years ago
A polynomial function has roots –5 and 1. Which of the following could represent this function? f(x) = (x + 5)(x + 1) f(x) = (x
Dimas [21]

f(x) = (x + 5)(x - 1)

using the ' factor theorem '

given x = a is the root of a polynomial then (x - a ) is a factor

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3 0
4 years ago
Read 2 more answers
Please help asap:) 30points
pishuonlain [190]

Answer:

q#1 Option B.2 possible solution is correct option

Q#2 option c. 1 viable solution is correct option.

Step-by-step explanation:

Q#1

y=4x^{2}+3x+45

as this is a quadratic solution

and we know that when we solve a quadratic equation then  it gives two possible solutions

hence option b is the correct option

Q#2

option c is correct option when we solve an quadratic equation it gives two solution one is positive and other is negative as we know that income cannot be negative

hence only one viable solution exists when we solve this

y=4x^{2}+3x+45 quadratic equation

8 0
3 years ago
Read 2 more answers
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