In Problems 71-76, find the radius and center of each sphere. [Hint: Complete the square in each variable.] 71. x? + y? + z? + 2x – 2y = 2 72. x + y? + z² + 2x 73. x + y? + z? 74. x + y? + z? – 4x = 0 75. 2x + 2y? + 2z? - 8x + 4z = -1 - 2z = -1 4x + 4y + 2z = 0 76. 3x + 3y? + 3z? + 6x – 6y = 3

Q: aluate the integral using trigonometrie 6. dt /t2 - 4

A: Please see the answer below.

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A: As we know that the differentiation of:- dxndx=nxn-1 (fg)'=f'g+fg' fg'=gf'-fg'g2

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Q: If a triangle has vertices (-5,-5), (-4,-6), and (-2,-1), how do you reflect this over the y=x axis

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Q: PA, MO1 NA, RO1 PĀ, 15. and MN = 6 ft. Find x. R. A M 36 ft 6 ft 3 ft 12 ft

A: To find the value of x and the standard equation of circle.

Q: We proceed to complete the squares in x and in y. x²2²-2x+4y² + 8y + 1 = 0 x² - 2x + 4y² + 8y = -1…

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A: As per guideline we have to solve one question

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