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Leokris [45]
3 years ago
13

Please help me expand theses and then help me factorise these brackets

Mathematics
2 answers:
-Dominant- [34]3 years ago
8 0

Answer:

-9xy+16x

Step-by-step explanation:

x(y-2)+3x(6-y)-7xy

xy-2x+18x-3xy-7xy

xy-3xy-7xy-2x+18x

-9xy+16x

melisa1 [442]3 years ago
3 0

Answer:

-9xy+16x

Step-by-step explanation:

x(y-2) +3x(6-y) -7xy

Distribute

xy -2x +18x-3xy -7xy

Combine like terms

-9xy+16x

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Find the sum of the polynomials below.
Korolek [52]
It's A.
5+6= 11 x^5
2+1= 3 x
-1+8=8-1= 7



5 0
3 years ago
What is the equation of the line that passes through (0, 3) and (7, 0)?
r-ruslan [8.4K]
The answer should be (C):y=(-3/7)x+3 because:

 if you use the slope formula: (Y2-Y1)/(X2-X1) it would look like this:

(0-3)/(7-0) and the slope of the line would be -3/7

then using the slope you just found, plug it into the y=mx+b equation along with one set of coordinates to find b (the y-intercept):

y=mx+b
0=(-3/7)(7)+b
b=3

SO, overall if you put the slope (m) and the y-intercept (b) that you found together, you get the line formula of y=(-3/7)+3 

5 0
3 years ago
13. A discount retail store gives a 8% discount
ohaa [14]

Answer:

the final cost is $31.74

6 0
2 years ago
X<br>+ 3 + 5x =<br>I dont know<br>understand<br>this help me​
spin [16.1K]

Answer:

6x + 3

Step-by-step explanation:

Just add the X's (5x + x)=6x, since there is only one whole number without any variables you dont have to do anything to it. So 6x + 3 is your answer.

4 0
3 years ago
Read 2 more answers
A store marks up the price of a sweater by $7.35. The total cost of the sweater is 25.65. How much does the store pay for the sw
UNO [17]

Answer: the store paid $18.3 for the sweater

Step-by-step explanation:

Let x represent the amount that the store paid for the sweater.

A store marks up the price of a sweater by $7.35. This means that the new or current price of the sweater at the store would be

7.35 + x

The total cost of the sweater is 25.65. Therefore, an equation to represent the problem would be

7.35 + x = 25.65

Subtracting 7.35 from the left hand side and the right hand side of the equation, it becomes

7.35 + x - 7.35 = 25.65 - 7.35

x = $18.3

3 0
3 years ago
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