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mixer [17]
3 years ago
6

A) (x + y + 4).(x + y –4)

Mathematics
1 answer:
miv72 [106K]3 years ago
5 0

Answer:

if you want to factorise it answer will be : (x+y)^2 - 4^2

and if you have to expand it anwer will be x^2 + y^2 + 2xy -16

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The ratio of the number of boys to the number of girls in a dance club is 5 : 6. After 6 more boys join the club, the ratio beca
UkoKoshka [18]

44

Step-by-step explanation:

let boys be x and girls be y

x/y=5/6

x=5y/6....(1)

if 6 boys join the club that will be x+6

Therefore:

(x+6)/y=13/12

13y=12x+72

13y-12x=72

Recall x=5y/6

Therefore:

13y-12(5y/6)=72

13y-(2*5y)=72

13y-10y=72

3y=72

y=24 people

Therefore:

x=(5*24)/6

x=20 people

Therefore people in the club before are 20+24=44

5 0
2 years ago
Use the distance formula to find the distance between the points (-3,8) and (-4,-1). Round to the nearest hundredth if necessary
Svetlanka [38]

Answer:

9.05538513

rounded to the nearest hundredth woud be 9.06

Hope this helps!

3 0
3 years ago
Find a product between 1500 and 1700?
Nady [450]

<u>Product is basically a vocabulary word meaning multiply</u>. 1500 x 1700 gives you a huge number that is 2,550,000.

6 0
3 years ago
19. Given that the lines are parallel, what angle is congruent to angle 6?
nikklg [1K]
It is C bc it is on the opposite side and on the outside
6 0
3 years ago
9,000g equals how many kg
bekas [8.4K]
There are 1000 grams in a kilogram.
9000 grams/1000 grams per kg=9 kg
Finl answer: 9kg
4 0
3 years ago
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