PLS HELP ME ASAP ON 4 and 5 PLS! THANK YOU SOO MUCH!!

Mathematics

1 answer:

kotykmax [81]3 years ago

8 0

4)row 1. 20 15 10 row 2. 6

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Can x in f(x) be replaced by another letter? For example f(a);Would that be the same thing?

Murljashka [212]

Answer:

Yes

Step-by-step explanation:

X is just an unknown variable which can be substituted as another variating condition. I.E Function of x can be written as Function of a. If no other condition is present.

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3 years ago

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80% of an airline's flights depart on-time and 20% do not. Of those that depart on-time, 95% arrive on-time. Of those that depar

Dmitry_Shevchenko [17]

Answer:

0.78

Step-by-step explanation:

given that 80% of an airline's flights depart on-time and 20% do not.

Of those that depart on-time, 95% arrive on-time. Of those that depart late, 10% arrive on-time

Let A be the event that flight departs on time.

Now A and A' are mutually exclusive and exhaustive

Let B be the event the flight arrives on time

Using total probability calculation we have

the chance of someone taking a flight that will arrive on-time

= P(B)

= $P(A)+P(A'B)\\= 0.80(0.95) +0.20(0.10)\\= 0.76+0.02\\=0.78$

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3 years ago

Explain any difference between a relation and a function

almond37 [142]

In a function, each x-value or independent value must only have 1 corresponding y-value or dependent value. On the other hand, in a relation, the independent value may have more than 1 corresponding dependent value. A function is a more specific case of a relation.

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3 years ago

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Elaine plans on saving $2,000 a year and expects to earn an annual rate of 8.8 percent. How much will she have in her account at

yKpoI14uk [10]

Answer:

$831,532.24

Step-by-step explanation:

The amount that will be in her account at ordinary annuity is derived using the formula:

$A(n) = \dfrac{P((1 + r)^{n}-1)}{r}$