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3 years ago

When graphing an inequality, you use an open

Mathematics

1 answer:

Katena32 [7]3 years ago

6 0

Answer:

> <

Step-by-step explanation:

when there is no line underneath the symbol(or the equal to symbol) the dot is filled in. but when there isnt one it means the dot isn't filles in.

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Two trains leave the same station at the same time, but are headed in opposite directions. One train travels at 70 mph and the o

uranmaximum [27]

Let

x--------> the time in hours

y-------> the distance in miles

we know that

The speed is equal to

$Speed=\frac{distance}{time}$

in this problem

$Speed=\frac{y}{x}$

$y=(Speed)*x$

Equation First Train

$y1=70x$

Equation Second Train

$y2=80x$

$y1+y2=600\ miles$ ---------> equation $1$

Substitute the values of $y1$ and $y2$ in the equation $1$

$70x+80x=600$

Solve for x

$150x=600$

$x=4\ hours$

therefore

the answer is

$4\ hours$

4 0

3 years ago

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What is 5/8 - 1/8 in simplest form

o-na [289]

5/8 - 1/8 = 4/8

4/8 in it's simplest form is 1/2

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3 years ago

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16 - (1 - 5x) - 4x-29

Lera25 [3.4K]

-14 + x

Is the correct answer

4 0

3 years ago

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Find ZABC 00 A 38⁰ 32⁰

almond37 [142]

Answer:

The answer will be 38° + 32° = 70°

Please mark me as the brainliest

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2 years ago

Quadrilateral ABCD in the figure below represents a scaled-down model of a walkway around a historic site. Quadrilateral EFGH re

Mkey [24]

the picture in the attached figure

Step 1

Find the perimeter of the scaled-down model of a walkway (Quadrilateral ABCD)

$P=AD+DC+CB+BA\\P=3+2+2+4\\ P=11 in$

Step 2

Find the scale factor

if Quadrilateral ABCD is similar to Quadrilateral EFGH

then

$PerimeterEFGH=PerimeterABCD*scale factor$

$scale.factor=\frac{EF}{AB} \\ \\ scale.factor=\frac{60}{4} \\ \\ scale.factor=15\frac{ft}{in}$

Step 3

Find the perimeter of the actual walkway (Quadrilateral EFGH)

$PerimeterEFGH=PerimeterABCD*scale factor$

$PerimeterEFGH=11*15$

$PerimeterEFGH=165 ft$

therefore

the answer is

$165 ft$

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3 years ago

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