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sergeinik [125]
3 years ago
11

A quadrilateral with opposite sides both parallel and congruent.​

Mathematics
1 answer:
Verizon [17]3 years ago
3 0
The answer is a parallelogram
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5 x 100 + 4 x 10 + 6 x 1 + 2 x ( 1/10) + 8 x ( 1/1000) =?
Alexus [3.1K]

Answer:

68276/125

Step-by-step explanation:

500+40+6+1/5+1/125

546+26/125

68276/125

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Quan bought 8.6 meters of frabic. how many cm of fabric did he buy
stira [4]
When you convert from meters to centimeters, you always multiply by 100, which means that 1 meter = 1 * 100 cm = 100 cm
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For what values of x is the graph of y equals negative 3 divided by the quantity 4 plus x concave downward?
Elena-2011 [213]

We are given our function as

y=\frac{-3}{x+4}

For finding concavity , firstly we will find second derivative

y'=\frac{d}{dx}\left(\frac{-3}{x+4}\right)

=-3\frac{d}{dx}\left(\frac{1}{x+4}\right)

=-3\left(-\frac{1}{\left(x+4\right)^2}\right)\cdot \:1

y'=\frac{3}{\left(x+4\right)^2}

now, we can find derivative again

y''=\frac{d}{dx}\left(\frac{3}{\left(x+4\right)^2}\right)

=3\frac{d}{dx}\left(\left(x+4\right)^{-2}\right)

y''=3\left(-\frac{2}{\left(x+4\right)^3}\right)\cdot \:1

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now, we can know second derivative is undefined when denominator =0

so, we set denominator =0

and then we can solve for x

x+4=0

x=-4

now, we can draw a number line and locate x=-4

and then we can find sign of second derivative on each intervals

so,

Concave downward interval:

(-4,\infty)

6 0
3 years ago
The sum of 4 and x add to the sum of x and − 8
sergey [27]

Answer:

The sum is the solution when you add two (or more) numbers together. So, the expression is (x+4)+(x-8).

:)

6 0
3 years ago
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