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Vaselesa [24]
3 years ago
6

8 + 3 (16 - 12). Help thanks

Mathematics
2 answers:
PSYCHO15rus [73]3 years ago
8 0

Answer:

20

Step-by-step explanation:

you've got to do the inside parenthesis first then multiple with 3 and finally add 8

Semmy [17]3 years ago
5 0

Answer:

It is 20

Step-by-step explanation:

As per BODMAS rule we solve the Brakets first.

= 8+3 (4)

=8+3×4

=8+12

=20

Hence answer is 20.

But is you don't go with the rule it would be,

=8+3 (4)

=11×4

=44

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Suppose I have an urn with 9 balls: 4 green, 3 yellow and 2 white ones. I draw a ball from the urn repeatedly with replacement.
Mrrafil [7]

Answer:

E(X_n)=\frac{2(n-1)}{27}

E(y)=\frac{14}{9}

Step-by-step explanation:

From the question we are told that:

Sample size n=9

Number of Green g=4

Number of yellow y=4

Number of white w=4

Probability of Green Followed by yellow P(GY) ball

 P(GY)=\frac{4}{9}*\frac{3}{9}

 P(GY)=\frac{4}{27}

Generally the equations for when n is even is mathematically given by

 Probability of success P(S)=\frac{4}{27}

 Probability of Failure P(F)=\frac{27-4}{27}

 Probability of Failure P(F)=\frac{23}{27}

Therefore

 E(X_n)=\frac{n}{2}*P

 E(X_n)=\frac{n}{2}*\frac{4}{27}

 E(X_n)=\frac{2n}{27}

Generally the equations for when n is odd is mathematically given by

 \frac{n-1}{2}

 E(X_n)=\frac{n-1}{2}*\frac{4}{27}

 E(X_n)=\frac{2(n-1)}{27}

b)

Probability of drawing white ball

 P(w)=\frac{2}{9}

Therefore

 E(w)=\frac{1}{p}

 E(w)=\frac{1}{\frac{2}{9}}

 E(w)=\frac{9}{2}

Therefore

 E(y)=[E(w)-1]\frac{4}{9}

 E(y)=[\frac{9}{2}-1]\frac{4}{9}

 E(y)=\frac{14}{9}

5 0
3 years ago
a crayon company recently changed its labels. it currently has 657,388 crayons with the old label and 82,923 crayons with the ne
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It needs to be b or lest than that
3 0
3 years ago
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Find the volume of the cylinder whose base area is (4x)2 and height is (5x)2.
Gre4nikov [31]

Answer:

Step-by-step explanation:

The computation of the volume of the cylinder is shown below:

As we know that

The Volume of the cylinder is

= base × height

= (4x)^2 + (5x)^2

=16x^2 + 25x^2

= 41x^3

Hence, the volume of the cylinder is 41x^3

4 0
2 years ago
Solve for x.
PSYCHO15rus [73]

The answer is the first option: 1) x> the quantity 4 times b minus 9 all over a

The explanation is shown below:

1. To solve this problem you must pply the following proccedure:

2. Move the term4b to the left member. As the variable is negative, multiply the expression by-1 and change the direction of the sign:

-ax+4b>9\\ (-1) -ax>9-b4 (-1)\\ x>\frac{ab-9}{a}

6 0
3 years ago
Can i get help on 18 & 22 please
Pavlova-9 [17]

18) 36.36 rounded it is 36.4

22)53.71 rounded it it’s just 53.7

5 0
3 years ago
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