3 years ago

Solve: 9x - 3 = 729

Mathematics

2 answers:

IRISSAK [1]3 years ago

7 0

Answer:

Step-by-step explanation:

edge

Ivahew [28]3 years ago

5 0

Answer:

its . 6

Step-by-step explanation:

e2020

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The binomial (2x3 + 3y2)7 is shown in expanded form, but elements of several terms are missing. To complete the expansion, drag

svlad2 [7]

${(2x^{3} + 3x^{2} )}^{7}$
EXPANDED: VERY LONG

$128x^{21} +1344x^{18} y^{2} +6048x^{15} y^{4} +15120x^{12} y^{6} +22680x^{9} y^{8} +20412x^{6} y^{10} +10206x^{3} y^{12} +2187y^{14}$

I used the Binomial Theorem, Which States
$(a + b)(a + b)= {a}^{2} + 2ab + {b}^{2} \\$
$({a}^{2} + 2ab + {b}^{2} )(a + b)={a}^{3} + 3 {a}^{2} b + 3a {b}^{2} + {b}^{3}$
$({a}^{3} + 3 {a}^{2} b + 3a {b}^{2} + {b}^{3}) \times (a + b) = i \: believe \: you \: get \: the \: pattern \: now$

8 0

3 years ago

What is the mean of the data set graphed on the dot plot?

yanalaym [24]

Answer:

The mean is the average of all the numbers. So your answer is C. 45

Step-by-step explanation:

Add all of the numbers

0 + 10 + 30 + 30 + 40 + 50 + 70 + 80 + 95 = 405

Since there are 9 numbers, divide 405 by 9

405/9 is 45

That's your answer! I hope this helps!