19 Four discs, each of radius 1 cm, are cut from a 5 cm by 5 cm cardboard square. Use the value 3.14 for a to find the area of cardboard left over.

Q: Number 27

A:

Q: to olt -3

A:

Q: Number 43, please.

A: Given that  2+4+6---------+70  To fidn the sum

Q: Save dre invX+3

A:

Q: Number 28

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Q: 3 + 4 = jbygy

A: 3+4=7

Q: Number 19

A: Solve value for x

Q: Find g C4

A: Here we have to find the value of 9C4.

Q: xp= /3-x =dx

A:

Q: Number 24, please.

A: detailed solution is given below

Q: Translate

A: Given point C 1 , 0 After applying conditions in point A ,we get  C1 , 0 → -3 , 0  → -3 ,-4 Now ,…

Q: Evaluate -up-

A:

Q: Evaluate L=1

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Q: Where is a22?

A: The given matrix is:We know that the inverse of a matrix exist if the matrix is non - singular.i.e.…

Q: 2 Ve4x -9 xps

A:

Q: Number 18

A:

Q: to 20

A: Given that: