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Nutka1998 [239]
4 years ago
13

3 1/3+(-2 1\4)+1 5/6

Mathematics
1 answer:
swat324 years ago
3 0

Answer:

2 11/12

Step-by-step explanation:

Simplify:

35/12 = 2 11/12

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Probably 1\3 try it..................
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Consider the following scenario:
Sladkaya [172]

Answer:

1. P(C AND D) = 0.3

2. (C.) C and D are not mutually exclusive because P(C AND D) ≠ 0

3. (A.) The events are not independent because P(C | D) ≠ P(C)

4.P(D | C) = 0.5

Step-by-step explanation:

• Let P(C) = 0.4

• Let P(D) = 0.5

• Let P(C | D) = 0.6

1.) Find P(C AND D).

P(C | D) = \frac{P(C n D)}{P(D)} \\P(C n D) = P(C | D) * P(D)\\P(C n D) = 0.6 * 0.5\\P(C n D) = 0.3

2.) Events can be mutually exclusive meaning the both event cannot happen at the same time. So, P(A and B) = 0

3.) Events can be "Independent", meaning each event is not affected by any other events.

4.) Find P(D | C)

P(D | C) = \frac{P (D n C)}{P(C)}\\P(D n C) = 0.5 * 0.4 = 0.2\\P(D | C) = \frac{0.2}{0.4}\\P(D | C) = 0.5

6 0
4 years ago
8–2|4–5y|=4 help me as quick as u can plzzz
Svetach [21]

Answer: y=\frac{2}{5}, \frac{6}{5}

Step-by-step explanation:

When answering a problem like this, you first isolate the absolute value.  TO do this, first subtract 8 from both sides, to get –2|4–5y|=-4.  Then divide both sides of the equation to get |4–5y|=2.  The next thing you do is split the equation into 4-5y=2 and 4-5y=-2, because the contents of the absolute value could be negative or positive, and simplifying both into y = 2/5, and y = 6/5y.

Hope it helps <3

4 0
3 years ago
Which of the following statements cannot be proven to be true?​
MArishka [77]

Answer:

which statements is there meant to be a diagram? ?

6 0
3 years ago
It has been estimated that only about 30% of California residents have adequate earthquake supplies. Suppose you randomly survey
mote1985 [20]

Answer:

P(X\geq 8)=0.0043\\\\

It's more likely that  all of the residents surveyed will have adequate earthquake supplies since it has a probability of 98.02% which is very close to 100%.

Step-by-step explanation:

-This is a binomial probability problem with the function:

P(X=x)={n\choose x}p^x(1-p)^{n-x}

-Given p=0.3, n=11, the is calculated as:

P(X=x)={n\choose x}p^x(1-p)^{n-x}\\\\P(X\geq 8)=P(X=8)+P(X=9)+P(X=10)+P(X=11)\\\\={11\choose 8}0.3^8(0.7)^3+{11\choose 9}0.3^9(0.7)^2+{11\choose 10}0.3^{10}(0.7)^1+{11\choose 11}0.3^{11}(0.7)^0\\\\=0.0037+0.0005+0.00005+0.000002\\\\=0.0043

Hence, the probability that at least 8 have adequate supplies 0.0043

#The probability that non has adequate supplies is calculated as;

P(X=x)={n\choose x}p^x(1-p)^{n-x}\\\\P(X= 0)={11\choose 0}0.3^{0}(0.7)^{11}\\\\=0.0198

#The probability that all have adequate supplies is calculated as:

P(X=x)={n\choose x}p^x(1-p)^{n-x}\\\\P(X= All)=1-{11\choose 0}0.3^{0}(0.7)^{11}\\\\=1-0.0198\\\\=0.9802

Hence, it's more likely that  all of the residents surveyed will have adequate earthquake supplies since P(All)>P(None)\ \ and that this probability is 0.9802 or 98.02% a figure close to 1

7 0
3 years ago
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