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AfilCa [17]
3 years ago
8

Which operation is performed in the derivation of the quadratic formula moving from step 6 to 7?

Mathematics
1 answer:
yuradex [85]3 years ago
8 0

Answer:c

Step-by-step explanation:

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The perimeter of the rectangle below is 84 unit . Find the length side of XY
lesya [120]

Answer:

25 unit

Step-by-step explanation:

See attachment for the missing figure.

Assuming the complete question is:

Side UY = 4z-1  

Side UV = 5z+3  

Perimeter of rectangle is given by:

2UY+2UV=P

2(4z-1)+2(5z+3)=84

8z-2+10z+6=84

18z+4=84

18z = 84 -4 =>

18z = 80

z= 4.45 unit

Side UV = 5z+3 => 5(4.45) + 3

Side UV ≈ 25 unit

SInce, Side UV = Side XY

Side XY≈ 25 unit

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3 years ago
The solid shape is made from a cylinder and a hemisphere.
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The solid shape is made from a cylinder and a hemisphere. The radius of the cylinder is equal to the radius of the hemisphere. The cylinder has a height of 10 cm. The curved surface area of the hemisphere is 32π cm2.

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Median 170

Lower quartile 100

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PtichkaEL [24]
I = P x r x t
r = I/P x t

r = 310/1000 x 5
r = 0.62
r = 0.62 x 100
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The circle is inscribed in the triangle. Find the perimeter of the triangle.
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You need to give me more information.
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A bag contains 8 red marbles, 3 blue marbles and 2 green marbles. If two marbles are drawn out of the bag, what is the exact pro
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Not really because there only three but u might get red thought
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