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Snowcat [4.5K]
3 years ago
14

Find the cube of : (2a-b)

Mathematics
2 answers:
Molodets [167]3 years ago
6 0

Answer:

It is step by step ,you can directly copy it but you don't need to copy the formula in your answer

Step-by-step explanation:

(2a-b)

olchik [2.2K]3 years ago
4 0

Answer:

Step-by-step explanation:

(2a + b)³

(2a)³ + b³ + (3)(2a)²(b) + (3)(2a)(b)²

8a³ + b³ + 12a²b + 6ab²

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Ms.mitchells coin purse has 20 coins there are 6 pennies are, 4 quarters, 3 dimes, and the remander are nickels
enot [183]

6+4+3= 13 coins

There are 20 coins so you have to subtract 20-13+7

So, Ms. Mitchell has 7 nickels in her purse

7 0
3 years ago
Which recursive definition represents the sequence {2, 3, 5, 9, 17...}?
Gnesinka [82]
Let's analyze the sequence: {2,3,5,9,17...}.
3 = 2+1
5 = 3+2
9=5+4
17=9+8
So, every element of the sequence is obtained as sum from the previous element + (previous element -1)

y[n]=y[n-1] + (y[n-1]-1)
4 0
3 years ago
Marco drew 24 pictures. He drew 1/6 of them in art class. How many pictures did Marco draw in art class?
kozerog [31]
24/6 is the amount of pictures drawn in art class. Your answer is 4
6 0
3 years ago
Read 2 more answers
Determine if the two triangles are congruent.
vova2212 [387]

Answer:

they are not congruent

Step-by-step explanation:

look at all the sides to see if they are all the same

3 0
3 years ago
Read 2 more answers
A line contains the points (3,1) and (-6,4). What is the equation for this line in slope-intercept form?
Alex73 [517]

Answer:

y = (-1/3)x + 2

Step-by-step explanation:

Equation of line in slope-intercept form is given by

y = mx +c

where m is the slope of line

c is y intercept

Slope of line having points (x1, y1) and (x2,y2) is given by (y2-y1)/(x2-x1)

_________________________________________________

let the equation of required line be y = mx +c

Since points given are  (3,1) and (-6,4)

Then, its slope is

m = 4-1/-6-3 = 3/-9 = -1/3

Thus, slope of line is m = -1/3

lets use m = -1/3 in place of m in equation y = mx +c

y = (-1/3)x + c

Since points   (3,1) and (-6,4) lie on y = (-1/3)x + c , it should satisfy the this equation.

hence lets plug 3 in place of x and 1 in place of y

1 =  (-1/3)3 + c

=> 1 = -1 + c

=> c = 1 +1 = 2

Thus, intercept is 2.

Thus, Equation of line in slope-intercept form is y = (-1/3)x + 2.

5 0
4 years ago
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