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4 years ago

Please Help My question is a inequality. Solve the inequality algebraically. -2 x > -8

Mathematics

2 answers:

MAVERICK [17]4 years ago

8 0

Answer:

x < 4

Step-by-step explanation:

-2 x > -8

-2 -2

x < 4

Remember, a negative divided by a negative is a positive

ABOUT THIS INEQUALITY > SIGN:

Greater than
More than
Above
Exceeds

ABOUT THIS INEQUALITY < SIGN:

Less than
Fewer than
Below

ABOUT THIS INEQUALITY > SIGN:

Greater than/Equal to
No Less Than
At least
Minimum of

ABOUT THIS INEQUALITY < SIGN:

Less than/Equal to
No more than
At most
Maximum of

Hope this helps you!!! :)

Angelina_Jolie [31]4 years ago

6 0

To solve an equation or inequality, you need to isolate the variable you re trying to solve for on one side of the inequality/equation and ita value on the other side.

in -2x > -8
we can isolate x by dividing both sides by -2x so x is by itself

-2/-2 x = -8/-2
A number divided by itself is always 1, so it crossouts abd only leaves 1x ir just x
x = -4

I hope it helps

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A rectangular sheet of metal has a perimeter of 82 inches. Its area is 348 square inches. What are the dimensions of the sheet?

Georgia [21]

The area of a 2D form is the amount of space within its perimeter. The length of the rectangle is 29 inches and the width of the rectangle is 12 inches.

The area of a 2D form is the amount of space within its perimeter. It is measured in square units such as cm², m², and so on. To find the area of a square formula or another quadrilateral, multiply its length by its width.

Let the width of the sheet be represented by x and the length be represented by y.

Area = x × y

348 = xy

x = 348/y

Perimeter = 2(x+y)

82 = 2(x+y)

41 = x + y

41 = (348/y) + y

0 = y² - 41y + 348

y = 29, 12

Therefore, the length of the rectangle is 29 inches and the width of the rectangle is 12 inches.

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2 years ago

Write a story context for 5/6 divided by 1/12

Ad libitum [116K]

Answer:

There is a school with an area of 5/6 (the school is a rectangle)one side is 1/12 what is the length of the other side.

Step-by-step explanation:

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3 years ago

How do you solve cos((π/6)x)=0

zlopas [31]

$\bf cos\left( \frac{\pi }{6}x \right)=0\implies cos^{-1}\left[ cos\left( \frac{\pi }{6}x \right) \right]=cos^{-1}(0)
\\\\\\
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\begin{cases}
\frac{\pi }{2}\\\\
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$\bf \cfrac{\pi x}{6}=\cfrac{\pi }{2}\implies \pi x=\cfrac{6\pi }{2}\implies x=\cfrac{6\pi }{2\pi }
\implies \measuredangle x=\stackrel{radians}{3}\\\\
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4 years ago

Y=2x+5 and y=3x+11 solve by substitution.

kondaur [170]

Answer:

Answer: x= -6 and y= -7

Step-by-step explanation:

Substitute 2x+5 for y in y=3x+11:

y=3x+11

2x+5=3x+11

2x+5+−3x=3x+11+−3x(Add -3x to both sides)

−x+5=11

−x+5+−5=11+−5(Add -5 to both sides)

−x=6

−x−1=6−1(Divide both sides by -1)

x=−6

Step: Substitute −6 for x in y=2x+5:

y=2x+5

y=(2)(−6)+5

y=−7(Simplify both sides of the equation)

-Source: MathPapa

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3 years ago

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Answer - A

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4 years ago