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konstantin123 [22]
3 years ago
14

I’ve gotten 4 different answers for this so if someone can help me that would be amazing

Mathematics
1 answer:
hichkok12 [17]3 years ago
8 0

Simplifying the top:

(2* a^3 * b^5)^2 * (6ab)

4* a^6 *b^10 * (6ab)

24 *a^7 * b^11

so we have

(24 *a^7 * b^11) / (-3* a^5 *b)

immediately we can simplify 24 and -3

(-8 *a^7 * b^11) / ( a^5 *b)

a^7 and a^5 can cancel into just a^2

(-8 *a^2 * b^11) / (b)

b^11 and b cancels to b^10

-8 *a^2 * b^10

so that is your answer:

-8a^{2}b^{10}

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A total of 4 buses carrying 148 students from the same school arrive at a football stadium. The buses carry, respectively, 40, 3
Mandarinka [93]

Answer:

76.2838

Step-by-step explanation:

E[X+Y] = E[X] + E[Y]

E[X] is the average of X  or expectancy of X

E[Y] is the average or expectancy f Y

E[X] = 40P(student is in bus 1)+33P(student is in bus 2)+25P(student is in bus 3)+50P(student is in bus 4)=

40(40/148) + 33(33/148) + 25(25/148) + 50(50/148) = 39.2838

E[Y] = (number of students)/(number of drivers) = 148/4 = 37

So E[X+Y] = 39.2838 + 37 = 76.2838

6 0
4 years ago
9x - 1 = -11. Simplify.
zavuch27 [327]

Hi there!

\large\boxed{x = \frac{-10}{9}}

9x - 1 = -11

Add 1 to both sides:

9x -1 + 1 = -11 + 1

9x = -10

Divide both sides by 9:

9x/9 = -10/9

x = -10/9

8 0
3 years ago
Read 2 more answers
There is a bag filled with 4 blue, 3 red and 5 green marbles. A marble is taken at random from the bag, the colour is noted and
Rama09 [41]

Answer:

Step-by-step explanation:

4+3+5= 12 marbles

3/12 * 2/11 = 6/132 = 4.5%

5 0
3 years ago
Simplify 7(2+5) using Distributive Property
vredina [299]
49 hope this helps you
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3 years ago
Each of the 6 cats in a pet store was weighed. Here are their weights
zhannawk [14.2K]

Answer:

Mean= 10.83

Median= 9.5

Step-by-step explanation:

Given number,

10, 15, 8, 11, 9, 12

N= 6

As we know,

Mean= Ex/N

=10+15+8+11+9+12/6

=65/6

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Therefore, Mean= 10.83

Now,

Median(MD)= (N+1/2)th item

= 6+1/2

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Therefore, Median= 9.5

7 0
3 years ago
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