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xxTIMURxx [149]
3 years ago
7

Factorise completely 4y^2-z^2

Mathematics
1 answer:
svlad2 [7]3 years ago
5 0
S the difference of 2 squares:-

a^2 - b^2 = (a + b)(a - b)

so her it is (2y + z)(2y - z)
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Suppose you are adding 43 and 28 will you regroup?
ch4aika [34]
Yes 8+3= 11 You regroup the one 4+2=6+1=7 Hope this helps!
3 0
3 years ago
Circle P has a circumference of approximately 75 inches.
photoshop1234 [79]

Answer:

12in is you answer

Step-by-step explanation:

The formula to find circumference is C=2\pi r

so to rearrange to solve for radius that will be r=\frac{C}{2\pi }

=\frac{75}{2\pi }

=11.94in

5 0
3 years ago
Elle can buy 2 quarts of milk for $3 or 1 gallon of milk for $3, Which Is The Better Deal.... Because Im not sure..
GrogVix [38]
1 gallon is equal to 4 quarts. 

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5 0
3 years ago
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3) When Jackie took her children to the movie theater, she bought one box of candy and three small drinks for
Nezavi [6.7K]

Answer:

c + 3d = 14.75

2c + 5d = 26

A box of candy is $4.25 and a drink is $3.50

Step-by-step explanation:

Let c represent the cost of a box of candy and let d represent the cost of a drink

c + 3d = 14.75

2c + 5d = 26

Solve by elimination by multiplying the top equation by -2

-2c - 6d = -29.5

2c + 5d = 26

Add them together

-d = -3.5

d = 3.5

Plug in 3.5 as d into one of the equations to solve for c

c + 3d = 14.75

c + 3(3.5) = 14.75

c + 10.5 = 14.75

c = 4.25

So, a box of candy is $4.25 and a drink is $3.50

6 0
2 years ago
How do you re-write 0.7 repeating as a simplified fraction?
Brums [2.3K]

Answer:

7/10

Step-by-step explanation:

because .7*10 = 70 and it would  be 70/100 so you simplify it to 7/10

3 0
3 years ago
Read 2 more answers
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