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4 years ago

15

Form a Five digit number that has no zeros or repeated digits and where: The fourth digit is a quarter of the total of all digit

s. The second is twice as large as the first digit. The third digit is the largest, and the last digit is the sum of the first two digits.

1 answer:

sergeinik [125]4 years ago

7 0

24213 Thats what i got may not be right

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A Nevada roulette wheel had 38 pockets, labeled as 0 00 1 2 3 ... 35 36. One bet is single number. If you bet $1 on a number (an

slavikrds [6]

Answer:

-0.0526

Step-by-step explanation:

Let X be the random variable denoting the net gain(in dollars) for a single trial(one bet).

Assuming that each number in the wheel is equally likely, probability of the outcome being a victory is $\frac{1}{38}$ and probability of failure is $\frac{37}{38}$ . For a win, X takes value 35 and for a loss X takes value -1. So the model is,

$P(X=35) = \frac{1}{38}$

$P(X=-1) = \frac{37}{38}$

$P(X=i) = 0 \;if\; i \neq 38, i\neq -1$

The mean for one bet is $E(X) = \sum xP(X=x) = 35\times\frac{1}{38} - 1\times\frac{37}{38} = -0.0526$

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3 years ago

In a circle with a radius of 12.6 ft, an arc is intercepted by a central angle of 2π/7 radians.

Hitman42 [59]

11.30
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3 years ago

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After John worked at a job for 10 years, his salary doubled. If he started at $x, hls salary after 10 years is

Sholpan [36]

Answer:

$2x

Step-by-step explanation:

x × 2 = 2x

I hope this helps!

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3 years ago

a traveling salesman drives his car 30000 miles a year. His car travels 16 miles to the gallon of gas. How many gallons of gas d

DENIUS [597]

Answer:

187.5 gallons

Step-by-step explanation:

Make a proportion

$\frac{16 miles}{1 gallon}$ = $\frac{3000 miles}{x}$

3000/16 = 187.5, so multiply 1 by 187.5 to find the gallons used in a year

This gets you 187.5 gallons used in a year

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3 years ago

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60.April would like to invest $200 in the bank for one year. Three banks all have a nominal APR of 1.5%, but compound the intere

mojhsa [17]

Answer:

$203.02

Step-by-step explanation:

Since the bank in question compounds interest continuously, the following equation should be used to determine the final balance (B) in April's account:

$B= 200*e^{i*t}$

Where "e" is a mathematical constant approximated as 2.7183, "i" is the interest rate (1.5%) and "t" is the investment time in years (1):

$B= 200*e^{0.015*1}$

$B= 203.02$

April's balance would be $203.02 after one year.

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3 years ago