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3 years ago

12

The recangle is 23 ft long and 14ft wide if the Gardner wants to build a fence around the garden, how many feet of fence is requ

ired

1 answer:

MAVERICK [17]3 years ago

3 0

The answer is 106.83 i hope it helps

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58. In nine given numbers, the average of first five numbers is 20 and that of the last five numbe also 20. If the average of mi

snow_lady [41]

Im not sure sorry but 26 maybe as the adverga

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3 years ago

two sequences have the formulae 3n-1 and 7n+2 . A new sequences is formed by the number which appear in both of these sequences.

dangina [55]

Answer:

65+42*(n-1)

Step-by-step explanation:

aₙ = 65+42*(n-1)

65, 107, 149, 191, .....

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3 years ago

You deposit $2,500 in an investment

r-ruslan [8.4K]

Answer:

helpme

Step-by-step explanation:

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4 0

3 years ago

I need help with this question please help

forsale [732]

Answer:

<h2>282.857 in²</h2>

Step-by-step explanation:

The formula of a surface area of a cylinder:

$S.A.=2\pi r^2+2\pi rH$

r - radius

H - height

We have:

r = 5 in

H = 4 in

Substitute:

$S.A.=2\pi(5^2)+2\pi(5)(4)=2\pi(25)+2\pi(20)\\\\=50\pi+40\pi=90\pi\ in^2$

$\pi\approx\dfrac{22}{7}$

Substitute:

$S.A.\approx90\cdot\dfrac{22}{7}=\dfrac{1980}{7}\approx282.857\ in^2$

4 0

4 years ago

Find the derivative of f(x) = -2x2 + 11x at x = 9.

zavuch27 [327]

$\bf f(x)=-2x^2+11x\qquad\qquad \lim\limits_{h\to 0}\ \cfrac{f(x+h)-f(x)}{h}\\\\
-----------------------------\\\\
\cfrac{[-2(\underline{x+h})^2+11(\underline{x+h})]\quad -\quad [-2x^2+11x]}{h}
\\\\\\
\cfrac{[-2(x^2+2xh+h^2)+11x+11h]\quad -\quad [-2x^2+11x]}{h}
\\\\\\
\cfrac{\underline{-2x^2}-4xh-2h^2\underline{+11x}+11h\quad \underline{+2x^2}\underline{-11x}}{h}$

$\bf \cfrac{-4xh-2h^2+11h}{h}\implies \cfrac{\underline{h}(-4x-2h+11)}{\underline{h}}
\\\\\\
\lim\limits_{h\to 0}\ -4x-2h+11\implies -4x-2(0)+11
\\\\\\
\left. -4x+11\cfrac{}{} \right|_{x=9}\implies -4(9)+11$

6 0

4 years ago