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2 years ago

Negitive 8 over 2 divided by 6 over negitive 3 = ??????

Mathematics

2 answers:

Snezhnost [94]2 years ago

7 0

Answer: It should be 2

solmaris [256]2 years ago

5 0

when you didve fractions flip the second one over and multiply

so -8/2 divided by 6/-3 will become

-8/2 times -3/6

then multiple straight across so -8 x -3 = 24

over 6 time 2 = 12

so you get 24/12 which equals 2

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Factorise 6+ 9x show working please

Stolb23 [73]

6 + 9x.....a common factor in both terms is 3

3(2 + 3x) <==

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2 years ago

The random variable X is exponentially distributed, where X represents the waiting time to be seated at a restaurant during the

erastova [34]

Answer:

The probability that the wait time is greater than 14 minutes is 0.4786.

Step-by-step explanation:

The random variable X is defined as the waiting time to be seated at a restaurant during the evening.

The average waiting time is, β = 19 minutes.

The random variable X follows an Exponential distribution with parameter $\lambda=\frac{1}{\beta}=\frac{1}{19}$ .

The probability distribution function of X is:

$f(x)=\lambda e^{-\lambda x};\ x=0,1,2,3...$

Compute the value of the event (X > 14) as follows:

$P(X>14)=\int\limits^{\infty}_{14} {\lambda e^{-\lambda x}} \, dx=\lambda \int\limits^{\infty}_{14} {e^{-\lambda x}} \, dx\\=\lambda |\frac{e^{-\lambda x}}{-\lambda}|^{\infty}_{14}=e^{-\frac{1}{19} \times14}-0\\=0.4786$

Thus, the probability that the wait time is greater than 14 minutes is 0.4786.

7 0

2 years ago

HOW DO YOU CONVERT SURFACE AREA TO VOLUME! HELP!!!! WILL MARK BRAINLIST!!

slamgirl [31]

Answer:

Formulas for a rectangular prism:

Volume of Rectangular Prism: V = lwh.

Surface Area of Rectangular Prism: S = 2(lw + lh + wh)

Space Diagonal of Rectangular Prism: (similar to the distance between 2 points) d = √(l2 + w2 + h2)

Step-by-step explanation:

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3 0

2 years ago

Consider this expression

Vilka [71]

Answer:

I hope it will help you..

3 0

3 years ago

A tennis ball weighs about 57.6 grams. about how many apuntes would 12 tennis balls weigh?

Ilia_Sergeevich [38]

Answer:

The weight of 12 tennis balls = 691. 2 grams

Step-by-step explanation:

The weight of each tennis ball = 57.6 grams

So, the weight of 12 balls = 12 x ( weight of 1 ball)

= 12 x 57.6 grams

= 691.2 grams

⇒12 balls weigh 691.2 grams

Hence, the weight of 12 tennis balls = 691. 2 grams

7 0

3 years ago