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2 years ago

What is 4.2 divided by 20.076

Mathematics

1 answer:

faust18 [17]2 years ago

3 0

Answer:

0.209205

Step-by-step explanation:

I put it in the calculator and got this...

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Jessica is 5 years older than her sister Jenna. Jenna tells her sister that in 5 years, she will be as old as Jessica was 5 year

Mamont248 [21]

Answer: equations 1,3,4 and 5 stated has solutions.

Step-by-step explanation:

From the question, (x + 5) + 5 = (x + 5) + 5

The equations that represent the situation are:

1. x + 5 = (5 − x) − 5 :which has one solution

2. x + 5 = (x + 5) − 5 : many solutions

3. x + 5 = (x + 5) − 5: no solution

4. x + 5 = (5 − x) − 5 : many solutions

5. (x + 5) + 5 = (x + 5) + 5: many solutions

Equation 2 has no solution. While the other equations have one and more than one solutions.

6 0

2 years ago

Find the value of y for a given value of x, if y varies directly with x.

stepan [7]

Answer:

5.46

Step-by-step explanation:

3.24/5.4 = y/9.1

7 0

2 years ago

An investment fund starts at $0 and grows at a rate of $100 per month. Another fund starts at $4000 and reduces by $720 per year

Pie

Answer: 2 years 1 month

Step-by-step explanation:

2 years 1 month at $100 a month = $2,500

$720 x 2 years = $1,440

$720 / 12 months = $60

$1,440 + $60 = $1,500

$4,000 - $1,500 = $2,500

6 0

2 years ago

The exponential distribution can be used to solve Poisson-type problems in which the intervals are not time. The Air Travel Cons

frutty [35]

Answer:

a) $P(X \ge 490) = 0.628$

b) $P(X \leq 190) = 0.165$

Step-by-step explanation:

a) This is an exponential distribution question since it is a poisson type problem

Mean rate is 0.95 per 1000 passengers

Mean rate, $\lambda = 0.95/1000$

$\lambda = 0.00095$ per passenger

Probability that at least 490 passengers will have their baggage handled properly before the next mishandling occurs :

$P(X \ge x) = e^{- \lambda x}$

$P(X \ge 490) = e^{-490 * 0.00095}$

$P(X \ge 490) = e^{-0.4655}\\P(X \ge 490) = 0.628$

b) Probability that the number will be fewer than 200 passengers

$P(X \leq 190) = 1 - P(X \geq 190)\\P(X \leq 190) = 1 - e^{-190 \lambda} \\P(X \leq 190) = 1 - e^{-190 *0.00095}$

$P(X \leq 190) = 1 - 0.835\\P(X \leq 190) = 0.165$

8 0

2 years ago

The function f(x)=-x^2-2x+15 is shown on the graph. What are the domain and range of the function?

adoni [48]

Answer:

Domain is all real numbers

y ≤ 16

Step-by-step explanation:

The domain is the set of x values that the graph covers. There is no restriction on the x values. The domain is all real numbers.

The range is the set of y values that the graph covers. The highest the y values go is 16 at the top of the parabola. So the range is y ≤ 16.

3 0

2 years ago

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