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Oduvanchick [21]

3 years ago

8

Simplify

" id="TexFormula1" title="4 + \frac{3}{7}x - 2 - \frac{2}{7}x " alt="4 + \frac{3}{7}x - 2 - \frac{2}{7}x " align="absmiddle" class="latex-formula">

2 answers:

Sloan [31]3 years ago

6 0

$4 + \frac{3}{7}x - 2 - \frac{2}{7}x\\\\\text{combine like terms}\\\\\left(\dfrac{3}{7}x-\dfrac{2}{7}x\right)+(4-2)=\dfrac{3-2}{7}x+2=\boxed{\dfrac{1}{7}x+2}$

eimsori [14]3 years ago

5 0

Answer:

The correct answer to this problem is:<u> 2 + 1/7x</u>

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Read 2 more answers

A carpenter wants to build a rectangular box with square sides in which to put round things. the material for the bottom costs $

alexira [117]

Answer: $1.627\times 1.627\times 1.88\ ft^3$

Step-by-step explanation:

Given

Suppose side face have a dimension of l\times l

and width of h

volume $V=l^2\cdot h$

$h=\frac{V}{l^2}$

volume $V=5 ft^3$

Area of side wall is $A_s=l^2$

Area of top Wall $A_t=l\times h$

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Cost of bottom wall $c_b=20\times l\times h=20lh$

Cost of top wall $c_t=50\times l\times h=50lh$

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total cost $C=c_s+c_t+c_b=20lh+50lh+40l^2$

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differentiate C w.r.t l to get minima or maxima

$\frac{\mathrm{d} C}{\mathrm{d} l}=0$

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3 years ago

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2 years ago

Graph f(x)=3x-1 and g(x)=2^x on the same coordinate plane.

julsineya [31]

Answer:

B. 1 and D. 3.

Step-by-step explanation:

The figure below shows the graphs of f(x) = 3x - 1 (red) and g(x) = 2^x (blue).

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3 years ago