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2 years ago

5/6=-4/(x+2) answer pls

Mathematics

2 answers:

lara31 [8.8K]2 years ago

5 0

I got -34/5
here’s my work
hope this helps

EleoNora [17]2 years ago

5 0

Answer:

-34/5

Step-by-step explanation:

5/6=-4/(x+2)

5/6(x+2)=-4

5/6x+10/6=-4

5/6x=-4-10/6

5/6x=-4-5/3

5/6x=-12/3-5/3

5/6x=-17/3

x=(-17/3)/(5/6)

x=(-17/3)(6/5)

x=-34/5

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

zavuch27 [327]

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

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\\\\\\
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4 years ago

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sp2606 [1]

Answer:

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Step-by-step explanation:

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8 0

3 years ago

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nekit [7.7K]

Answer:

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Step-by-step explanation:

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3 years ago

Enter the value of n so that the expression (-y + 5) + (7y - 9) is equivalent to (ny - 4)

kvasek [131]

The answer is :
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4 years ago

What is the volume in cubic inches?

Fittoniya [83]

Answer

A) 2160 cubic inches

Step by step explanation

Volume of a rectangular prism = length *width*height.

The give figure (stairway) consists of two rectangular prism.

The volume of the first rectangular prism (bigger one) = 12 *10*12

=120*12

1 st prism = 1440 cubic inches

The volume of the rectangular prism 2 (smaller one) = 12*10*6

=120*6

The volume of the rectangular prism 2 = 720 cubic inches

The volume of the concrete stairway = Volume of the prism 1 + Volume of the prism 2

= 1440 + 720

The volume of the concrete stairway = 2160 cubic inches.

Thank you.

4 0

4 years ago