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Given that y = -16x2​​​​​​​ + 160x - 256, find the value of x giving the maximum value of y, and hence give this maximum value of y.

y = -16x2 + 160x - 256 

x = 5

y = 144

MC
Answered by Matthew C. • Maths tutor
5340 Views

Write down the next two terms in the sequence: 14, 14.75, 15.5, 16.25, ...

17

17.75

MC
Answered by Matthew C. • Maths tutor
3192 Views

Write down the next two terms in the sequence: 14, 17, 20, 23, ...

26

29

MC
Answered by Matthew C. • Maths tutor
7109 Views

Simplify: x + xy + y + yx + x

x + xy + y + yx + x

= 2x + y + 2xy

MC
Answered by Matthew C. • Maths tutor
9471 Views

Simplify: 4 - 2x + x2 + 2x + 4

4 - 2x + x2 + 2x + 4

= x2 + 8

MC
Answered by Matthew C. • Maths tutor
2415 Views

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