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3 years ago

Show work!!!!!!!!!!pleaseeee

Mathematics

1 answer:

Fed [463]3 years ago

4 0

Answer:

527.52in²

Step-by-step explanation:

Formula for the surface area of a cylinder is 2πrh+2πr²

2π*7*5+2π7²=

70π+98π=

168π=

527.52

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3 years ago

Find an upper limit for the zeroes 2x^4 -7x^3 + 4x^2 + 7x - 6 = 0

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<u>Answer-</u>

2 is the upper limit for the zeros.

<u>Solution-</u>

The given function f(x) is,

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For calculating the zeros,

$\Rightarrow f(x)=0$

$\Rightarrow 2x^4 -7x^3 + 4x^2 + 7x - 6 = 0$

$\Rightarrow 2x^4-4x^3-3x^3+6x^2-2x^2+ 4x+3x-6=0$

$\Rightarrow 2x^3(x-2)-3x^2(x-2)-2x(x-2)+3(x-2)=0$

$\Rightarrow (x-2)(2x^3-3x^2-2x+3)=0$

$\Rightarrow (x-2)(x^2(2x-3)-1(2x-3))=0$

$\Rightarrow (x-2)(x^2-1)(2x-3)=0$

$\Rightarrow (x-2)(x+1)(x-1)(2x-3)=0$

$\Rightarrow x-2=0,\ x+1=0,\ x-1=0,\ 2x-3=0$

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3 years ago

(4,-1). Parallel to y=-4x+2

allochka39001 [22]

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Step-by-step explanation:

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3 years ago