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3 years ago

Please help!!

1 answer:

3 0

No, this is not normal

This is a binomial distribution. Use BINS to determine if this is binomial.
B - binary?
I - independent?
N - number of trials
S - probability of success

B - yes, 3 or not a 3
I - yes, past rolls do not impact future rolls
N - 20 trials
S - prob success 1/6

Use binompdf on your calculator to find out the probability. To access, 2nd —> vars —> binompdf

Binompdf(20 (trials), 1/6 (p), 11 (x)) = 8.97x10^-5

The probability to roll a 3 11 times is .0000897. The chances are very low, making this not normal.

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The area of a rectangle is found by using the formula A=l×w

navik [9.2K]

Answer:

The width of the desk is 3

Step-by-step explanation:

plug in what you already have and solve.

A= l x w

18=6x w

when you solve for w you get 3

6 0

3 years ago

I need help with these ASAP thanks

Nataly_w [17]

Answer:

a. $y=\frac{2x}{x-5}$

b. $y=\frac{2-4x}{x-3}$

Step-by-step explanation:

change switch x and y and then solve for y.

a. $x=\frac{5y}{y-2}$

$x(y-2)=5y$

$xy-2x=5y$

$xy-5y=2x$

$y(x-5)=2x$

$y=\frac{2x}{x-5}$

same for b.

b. $x=\frac{3y+2}{y+4}$

$x(y+4)=3y+2$

$xy+4x=3y+2$

$xy-3y=2-4x$

$y(x-3)=2-4x$

$y=\frac{2-4x}{x-3}$

4 0

3 years ago

9 is 12% of which number

dolphi86 [110]

75 because
9 = .12x
9/.12 = 75

7 0

3 years ago

Which calculator correctly shows the quotient of 6.47x10^-15/3.36x10^-29

Alex73 [517]

<h2>Answer:</h2>

$\boxed{1.92559524e+14}$

<h2>Step-by-step explanation:</h2>

Scientific notation is a special way we choose for writing numbers. So the numers $6.47\times 10^{-15} \ and \ 3.36\times 10^{-29}$ are written in scientific notation. In this way, we have a quotient of two numbers written in scientific notation. To solve this problem, we have:

$\frac{6.47}{3.36}\times 10^{[-15-(-29)]}=1.92559524\times 10^{(-15+29)} \\ \\ \therefore 1.92559524\times 10^{14} \ or \ \boxed{1.92559524e+14}$

The division has been performed using the rules for operation with exponentiation.

5 0

4 years ago

Read 2 more answers

Kay left her computer running for 2~ days. How many hours did she leave her computer running for?

Stells [14]

she left her computer open for 48 hours

3 0

3 years ago