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Iteru [2.4K]
3 years ago
8

Simpifying the ratio 2hours and 45 minutes

Mathematics
1 answer:
mrs_skeptik [129]3 years ago
7 0
SOLUTION: what is 2 hours : 45 minutes. ratio as a fraction in simplest form. 2 hours = 120 minutes, so 120/45 = 8/3.
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Sauron [17]

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7 0
3 years ago
Read 2 more answers
Three partners are investing a total of $900,000 to open a garden and landscaping store. Their investments are in the ratio of 2
Zanzabum
The first investor you invested $180,000 the second $270,000 and the third $450,000.
Solution:
2+3+5=10
900,000/10=90,000
90,000x2=180,000
90,000x3=270,000
90,000x5=450,000
4 0
3 years ago
1 Find the value of C to that the function probability density function defined as follow, also calculate the man and variance /
Viefleur [7K]

Answer:

c = \frac{1}{12}

The mean of the distribution is 0.25.

The variance of the distribution is of 0.6875.

Step-by-step explanation:

Probability density function:

For it to be a probability function, the sum of the probabilities must be 1. The probabilities are 3c, 3c and 6c, so:

3c + 3c + 6c = 1

12c = 1

c = \frac{1}{12}

So the probability distribution is:

P(X = -1) = 3c = 3\frac{1}{12} = \frac{1}{4} = 0.25

P(X = 0) = 3c = 3\frac{1}{12} = \frac{1}{4} = 0.25

P(X = 1) = 6c = 6\frac{1}{12} = \frac{1}{2} = 0.5

Mean:

Sum of each outcome multiplied by its probability. So

E(X) = -1(0.25) + 0(0.25) + 1(0.5) = -0.25 + 0.5 = 0.25

The mean of the distribution is 0.25.

Variance:

Sum of the difference squared between each value and the mean, multiplied by its probability. So

V^2(X) = 0.25(-1-0.25)^2 + 0.25(0 - 0.25)^2 + 0.5(1 - 0.25)^2 = 0.6875

The variance of the distribution is of 0.6875.

4 0
3 years ago
What is the estimated difference between 7 6/11 - 5 13/15<br> (The answer should be a mixed number.)
Katyanochek1 [597]
1 112/165 because you have to have common denominators refer to image for work

6 0
3 years ago
Read 2 more answers
H^-2g for h=3 and g=27
Alexeev081 [22]
Plug h = 3 and g = 27 into the expression:

h^{-2}g=  \dfrac{g}{h^2} = \dfrac{27}{3^2} = \dfrac{27}{9} = 3
3 0
3 years ago
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