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3 years ago

Having trouble with my functions homework plz can someone help

Mathematics

1 answer:

puteri [66]3 years ago

4 0

Answer:

$g(x) = \frac{ - 19}{3} x \: + 2$

I hope that is right

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Im 10 years old and my sister is 4 years younger than me. 60 years later how old is my sister?

Morgarella [4.7K]

Your sister would be 66.
When you are 10, your sister would be 6 (10-4=6)
60 years later, you would be 70, and your sister would still be 4 years younger.

8 0

3 years ago

What is the square root between which two intergers explain

Softa [21]

Answer:

I’m pretty sure the square root between two Integers is when you have a non perfect square root for example the square root of 92. Since it is not perfect you have to estimate it and you use a numeric line to do it so in this case the square root of 92 would have to go in between the nearest perfect square roots from both sides which are 81 and 100. In the line you would see it as 9 and 10 and you have to estimate the value which in this case would be about 9.6

Step-by-step explanation:

6 0

2 years ago

Suppose that the useful life of a car battery, measured in months, decays with parameter 0.03 . We are interested in the life of

scZoUnD [109]

Answer:

a) X ~ $e(0.03)$

b) μ = 100/3

c) $\sigma = 100/3$

d) A battery is expected to last 100/3 months (33 months and 10 days approximately).

e) For seven batteries, i would expect them to last 700/3 months (approximately 19 years, 5 months and 10 days).

Step-by-step explanation:

a) The life of a battery is usually modeled with an exponential distribution X ~ $e(0.03)$

b) The mean of X is μ = 1/0.03 = 100/3

c) The standard deviation is $\sigma = 1/0.03 = 100/3$

d) The expected value of the bateery life is equal to its mean, hence it is 100/3 months.

e) The expected value of 7 (independent) batteries is the sum of the expected values of each one, hence it is 7*100/3 = 700/3 months.

4 0

3 years ago

Jessica earns 800 each month working a part time job. she wants to save a total of 2,400 for collage over a one- year period. wh

grigory [225]

Answer:

25%

Step-by-step explanation:

Given parameters:

Amount earned by Jessica per month = 800

Total savings target per year = 2400

Unknown:

Percentage of savings = ?

Solution:

The total earning per year will be the amount earned per month multiplied by the total number months;

Amount earned in a year = 12 x 800 = 9600

Let the percentage of savings per year = y%

Now;

2400 = $\frac{y}{100}$ x 9600

y = 25%

8 0

2 years ago

I don't really know what to do on this one so could someone help me

Yanka [14]

Answer:

because the gross is the total amount of money they get without the subtraction of taxes that they have to pay

Step-by-step explanation:

4 0

3 years ago