3 years ago

Find the area of the shaded region. Round to the nearest tenth.

Mathematics

1 answer:

drek231 [11]3 years ago

8 0

pi·18.6^2·123°/360° - 1/2·18.6^2·SIN(123°) = 226.3

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A two digits number is 21 times the difference and 350% of the product of its digit. Find the quotient of the digit of number

Juliette [100K]

The number is 63, so the quotient is 2.

Two digit numbers divisible by 21:
21, 42, 63, 84

21: 2-1 = 1 * 3.5 = 3.5
3.5*2*1 = 7 but 7 does not equal 21

42: 4-2 = 2 * 3.5 = 7
3.5*4*2 = 28 does not equal 42

63: 6-3 = 3*3.5 = 13.5
3.5*6*3 = 63 :)

Check:
21(6-3)=21(3)= 63 :)
3.5(6)(3) = 21(3) = 63 :)

63: 6/3 = 2

3 0

3 years ago

Solve the system of linear equations by elimination.<br><br> −x+3y=0<br><br> x+3y=12

Natali5045456 [20]

Answer:

(6,2)

Step by Step explanation:

1- Add the two equations so the Xs cancel out

2- find y by dividing 6 from both sides

3- plug in the y value in the place of the y in one of the equations

4- solve the equation to find X

5 - put answer in correct format (x,y)