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1 year ago

Need help asap. Need answer and how to solve it please

Mathematics

1 answer:

Ganezh [65]1 year ago

4 0

Answer:

we can say this is just 1/6 minus 6/7.

Step-by-step explanation:

since the 7 in the second equation is negative, this means the whole fraction is negative. youre gonna do whats called adding the opposite. now to find a common denominator, well 6 and 7 both go into 42 so youre gonna change both denominators to 42. 7 × 1 is 7, so the first is now 7/42. -7 × -6 is 42, and 6 × -6 is -36. so the other one is now -36/42. once you add them together youll get -29/42. hope this helps if you have any questions lmk :)

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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 $E(X) = \sum xP(X=x) = 35\times\frac{1}{38} - 1\times\frac{37}{38} = -0.0526$

3 0

2 years ago

Simplify the polynomial. Then find its value for the given value of the variable.

vekshin1

Answer:

Step-by-step explanation:

Simplified expression:

$3x^3 -x^3 +5x^3-9x^3$

$2x^3 +5x^3-9x^3$

$7x^3 -9x^3$

$-2x^3$

If x = -1, the value of the expression is:

$-2x^3$

$-2(-1^3)$

$-2(-1)$

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Hope this helps!

3 0

2 years ago

Help me please giving brainiest

Setler79 [48]

Answer:

1) The most common place (mode) for people to jog is the path.

2) (The picture)

Step-by-step explanation:

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2 years ago

One side of the equilateral triangle is 12cm .find its area

Lady bird [3.3K]

Triangle area formula 1/2bxh
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2 years ago

What is the volume of this shape?

snow_tiger [21]

D is the answer

6*10*3= 180 or

6*10 = 60*3 = 180

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2 years ago

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