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slavikrds [6]
3 years ago
5

Simplify 72x6 y7 z .

Mathematics
2 answers:
ch4aika [34]3 years ago
8 0
Nothing further can be done to this topic
kherson [118]3 years ago
5 0

Simplify 72x6 y7 z .

Solution:

72*x^{6}*y^{7}*z^{1}

There is nothing we can simplify more. If we had

12*x^{6}*x^{7}*6*x^{1}

=12*6*x^{6+7+1}

=72*x^{14}

But, there are no terms that have same base so we can not simplify the exponents, neither we have constant terms in product. So, we can not simplify this.

If we expand

72*x^{6}*y^{7}*z^{1}

we get,

=2*2*2*3*3*x*x*x*x*x*x*y*y*y*y*y*y*y*z

So, 72*x^{6}*y^{7}*z^{1}=2*2*2*3*3*x*x*x*x*x*x*y*y*y*y*y*y*y*z

Answer

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3m - 3(m+8) &gt; 3m<br><br><br> (Teacher didn't go over this hopefully I can get an explanation)
zhuklara [117]
Alrighty!

*Note the ">" sign is similar to the "=" sign.

3m - 3(3m + 8) > 3m
3m - 6m + 24 > 3m (distribute)
-3m + 24 > 3m (combine like terms)
24 > 6m (Compute/simplify)
8 > m

Makes sense?
8 0
3 years ago
Twenty middle school students are outside a movie theater waiting for it to open. There are four more girls than
Lapatulllka [165]

Answer:

0.4 , 0.1

Step-by-step explanation:

Let number of boys be = b , number of girls = b + 4 . As total students = 20    b + b + 4 = 20  → 2b + 4 = 20 → 2b = 20 - 4 = 16 → b = 16 / 2 = 8 (boys) , so girls = 12

Prob (a random first child is a boy) = boys / total students = 8 c 1 / 20 c1, or =  8  / 20  = 0.4

Prob ( a 'Tina' out of two Tina is the last) = 2 c 1 / 20 c 1 , or = 2 / 20 = 0.1

8 0
3 years ago
Can a cubic equation have 3 complex roots? 3 real roots? ...?
trasher [3.6K]
No, a cubic equation can not have three complex roots. This is because it turns twice and one end goes to positive infinity and one end goes to negative infinity. Thus, one of these MUST cross the x-axis at some point, meaning y = 0 and a real root exists.

Yes, a cubic equation can have three real roots if it cuts the x-axis three times.
7 0
3 years ago
I don't understand ÷ fractions
Reptile [31]
Ok. so, you have a fraction. lets say it is, 5/20. and the other, is. 2/5. flip the first one, and multiply. so your answer would be, 25/40. hope this helps.
7 0
3 years ago
In a certain clothing store, 3 shirts and 5 ties cost $60, and 2 shirts and 3 ties cost $39. What is the cost of each shirt?
Dovator [93]
Let shirts be x and ties be y
3x+5y=$60    Equation 1 (Equation 1 will be denoted by *)
2x+3y=$39    Equation 2 (Equation 2 will be denoted by !)
*x2  6x + 10y = $120
!x3  6x + 9y = $117
*-!  y = 120-117 =3

Ties are $3 each
Substitute this value back into one of the original 2 equations:
3x+5y=$60
3x+(5x3) = 60
3x+15=60
3x=45
x=15

Shirts are $15


6 0
3 years ago
Read 2 more answers
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