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2 years ago

If y=6 when ×=2, find × when y=12

2 answers:

7 0

You could also do.. When y is 6 and x is 2 this means thats 6 has been divided by 3 to get x. So you could do the same with the other y. So, when x is 12, divide this by 3 to find x. Which means x would be 4

Setler [38]2 years ago

3 0

If y ='s 6 and x ='s 2 then basically y ='s 12 which is 6 doubled so basically double the 2. The correct answer is "x = 4"

You might be interested in

The time between arrivals of customers at an automatic teller machine is an exponential random variable with a mean of 4 minutes

andre [41]

Answer:

0.7788 = 77.88% probability that more than three customers arrive in 10 minutes

Step-by-step explanation:

Exponential distribution:

The exponential probability distribution, with mean m, is described by the following equation:

$f(x) = \mu e^{-\mu x}$

In which $\mu = \frac{1}{m}$ is the decay parameter.

The probability that x is lower or equal to a is given by:

$P(X \leq x) = \int\limits^a_0 {f(x)} \, dx$

Which has the following solution:

$P(X \leq x) = 1 - e^{-\mu x}$

The probability of finding a value higher than x is:

$P(X > x) = 1 - P(X \leq x) = 1 - (1 - e^{-\mu x}) = e^{-\mu x}$

In this question, we have that:

The time between arrivals of customers at an automatic teller machine is an exponential random variable with a mean of 4 minutes, and we have three customers, which means that $m = 3*4 = 12, \mu = \frac{1}{12} = 0.0833$

(a) What is the probability that more than three customers arrive in 10 minutes

This is P(X > 3). So

$P(X > 3) = e^{-0.0833*3} = 0.7788$

0.7788 = 77.88% probability that more than three customers arrive in 10 minutes

6 0

3 years ago

Pls, Help! I need this today!

solong [7]

Answer:

see below

Step-by-step explanation:

5/6 + ( -1 1/6)

Changing the mixed number

5/6 + - (6/6 +1/6)

5/6 + ( -7/6)

-2/6

Simplify

-1/3

Since these are divided into 6 pieces, go two pieces to the left of zero.

4 0

3 years ago

Determine in which quadrant the product of 5(cos3pi/8 + isin 3pi/8) and sqrt 2(cos pi/12 + sin pi/12) lies.

ohaa [14]

When you multiply two complex numbers given in polar form, the argument of the product is the sum of the arguments of the factors. Meanwhile, the modulus of the product is the product of the moduli of the factors.

In this case, you'd have

$\dfrac{3\pi}8+\dfrac\pi{12}=\dfrac{11\pi}{24}$

and the modulus would simply be $5\sqrt2$ . Since

$\dfrac{11\pi}{24}$

we would expect the final product to fall in the first quadrant.

6 0

2 years ago

What two ways can you find the product of 8x997 using mental math

ss7ja [257]

8=10-2 or
997=1000-3
so we can use distributive property
remember, a(b+c)=ab+ac

for the first one
8(997)=(10-2)(997)=997(10-2)=997(10)+997(-2)=9970-1994=7976

2nd one
8(997)=8(1000-3)=8(1000)+8(-3)=8000-24=7976

7 0

2 years ago

It has been reported that 48% of teenagers play video games on their phones. A random sample of 60 teenages is drawn. Find the p

Ivanshal [37]

Answer:

skakaaja

Step-by-step explanation:

aamnanananan

3 0

2 years ago