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Korolek [52]
2 years ago
9

Eight cards are marked 3 4 5 6 7 8 9 and 10 such that each has exactly one of these numbers. A card is picked without looking. F

ind P(odd) write answer as a fraction In lowest terms.
Mathematics
1 answer:
UkoKoshka [18]2 years ago
3 0

total no of odd numbered cards = 4

total no. of cards = 8

4/8 = 1/2

hope it helps...!!!

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Which expression is equivalent to 2(3x+4)(x-3)
natali 33 [55]

Answer:

6x^2  − 10x − 24

Step-by-step explanation:

2(3x + 4)(x - 3)

(6x + 8)( x − 3)

6x^2  − 18x + 8x − 24

6x^2  − 10x − 24

7 0
2 years ago
Five-sixths of Paco's stamps have pictures of animals.
goldenfox [79]

Answer:

20

Step-by-step explanation:

fraction of stamps that has animals on it x total number of stamps paco has = pictures with animals on it

(5/6) x 24 = 20

6 0
3 years ago
According to a college survey, 22% of all students work full time. Find the standard deviation for the random variable X, the nu
mixer [17]

Answer:

1.66

Step-by-step explanation:

Calculation to find the standard deviation for the random variable X of the number of students who work full time in samples of size

Using this formula

Standard deviation(X)=√np(1−p)

Where,

n represent the number of students=16

p represent the percentage of all students who work full time=22

Let plug in the formula

Standard deviation(X)=√16(0.22)(1−0.22)

Standard deviation(X)=√(3.52)(0.78)

Standard deviation(X)=√2.7456

Standard deviation(X)=1.656

Standard deviation(X)=1.66 (Approximately)

Therefore the standard deviation for the number of students who work full time in samples of size 16 will be 1.66

8 0
3 years ago
-(-2) and -/-2/ simplify to different numbers
kow [346]
I suppose the / are absolute value lines.... so ill answer it that way, -(-2) simplifies to 2. -/-2/ simplifies to -2
7 0
3 years ago
Need help with question 5 please
tatyana61 [14]

Answer:

-1/6

Step-by-step explanation:

To find the slope we use

m = (y2-y1)/(x2-x1)

    = (-4-8)/( 1-3)

    = -12/-2

    =6

We want a line perpendicular, so we need the negative reciprocal

- (1/6)

-1/6

4 0
2 years ago
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