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mylen [45]
3 years ago
15

Ms.Ella wants to rent a car,it cost $0.9 per mile plus $200 initial fees.If she rent the car for x miles write an expression tha

t represents the total amount of money that she needs to spend .
HELP THIS IS A QUIZZZZ
Mathematics
2 answers:
evablogger [386]3 years ago
6 0
Cheese Burgers =06.2x=2
Hatshy [7]3 years ago
4 0

Answer:

0.9x + 200 = cost

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At a local University, it is reported that 81% of students own a wireless device. If 5 students are selected at random, what is
Sphinxa [80]

Answer:

34.87% probability that all 5 have a wireless device

Step-by-step explanation:

For each student, there are only two possible outcomes. Either they own a wireless device, or they do not. The probability of a student owning a wireless device is independent from other students. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

And p is the probability of X happening.

81% of students own a wireless device.

This means that p = 0.81

If 5 students are selected at random, what is the probability that all 5 have a wireless device?

This is P(X = 5) when n = 5. So

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 5) = C_{5,5}.(0.81)^{5}.(0.19)^{0} = 0.3487

34.87% probability that all 5 have a wireless device

5 0
3 years ago
What is the fraction 2 over 3 written in decimal form!!!!!!!!!
vodomira [7]
This is a number you will have memorized in grade school. If not, you can always perform long division of 2 by 3 to find it---or ask your calculator.

2/3 = 0.6666_6 . . . . . . repeating 6s indefinitely

____
Most folks get tired of writing 6s after a couple million of them, so they round it off to 0.67 or 0.667. These rounded values are NOT exactly 2/3.
3 0
3 years ago
Find the interest on $4000 at 3% for 4 months
Lilit [14]

Answer:

the formula for finding interest is I=p×r×t÷100

so the answer will be l=4000×3×4÷100which is equal to480.Therefore the interest is $480

8 0
2 years ago
Use vector notation to describe the points that lie in the given configuration. (Let s and t be elements of the Reals.)
Blababa [14]

Answer: I(s,t) = {(6s, 5s+6t, 5t)| sER, tER }

Step-by-step explanation:

Given the data in the question;

A vector is in the span of V1 and V2 only if it is a linear combination.

of V1 and V2.

so 'V' is in the span if;

V = SV1 + tV2 [ S and t are real numbers ]

V =    [ 6si + 5sj ] + [ 6tj + 5tz]

V = 6s, 5s+6t, 5t

so

I(s,t) = {(6s, 5s+6t, 5t)| sER, tER }

5 0
3 years ago
5v-4/10=4/5 (please show work)
il63 [147K]
5v - 4/10 = 4/5
5v = 4/5 + 4/10 = 6/5
v = (6/5)/5 = 6/25
3 0
4 years ago
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