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3 years ago

Is y equals 4x - 3 + x equals negative to the Y equals what number

1 answer:

6 0

Y=-4x+3-x because if it's -y=4-3+x y is not alone so you need to make y positive and switch the rest of the operations so it can be y=-4+3-x

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the perimeter of a rectangle can be found by using the formula P=21+2w. What is the width of the rectangle if the perimeter is 1

mixas84 [53]

$\begin{gathered} P=2l+2w \\ \text{If l=50 and P=100, then:} \\ 100=2(50)+2w\Rightarrow0=2w\text{ !!!!} \end{gathered}$

Since this can't happen, let's suppose that P=150, then:

$\begin{gathered} P=2l+2w \\ \Rightarrow150=2(50)+2w \\ \Rightarrow150=100+2w \end{gathered}$

Now we have to move the 100 to the other side of the equation with a negative sign to get this:

$\begin{gathered} 150=100+2w \\ \Rightarrow150-100=2w \\ \Rightarrow50=2w \end{gathered}$

Finally, to get w, we move the 2 that's multiplying to the other side dividing the 50:

$\begin{gathered} 50=2w \\ \Rightarrow\frac{50}{2}=w \\ \Rightarrow w=25 \end{gathered}$

Therefore, the width of the rectangle would be 25 ft if the perimeter is 150ft, and we can see how the rectangle would look:

6 0

2 years ago

A speck of dust 8.2 x 10^ -7 m wide. Which of the following is the best way to rewrite this quantity, using more appropriate uni

Ksju [112]

Answer:

Step-by-step explanation:

It's d credit to the person who said it

3 0

3 years ago

Read 2 more answers

What is an example of y=mx+b

denis23 [38]

Answer:

Your answer is Slope-intercept form.

Step-by-step explanation:

8 0

3 years ago

Lines L and M are parallel find m parallel to 5

Illusion [34]

You are given an angle of 38 degrees, which is a supplementary angle to angle 7.

Angle 7 = 180 - 38 = 142 degrees.

Angle 7 and angle 5 are Corresponding angles, which means they are equal.

Angle 5 = angle 7 = 142 degrees.

5 0

3 years ago

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The circumference of a circle is 31.4 inches. Enter the radius of the circle, in inches. Round your answer to the nearest whole

Masteriza [31]

Answer:

Should be 5 in.

Step-by-step explanation:

C=2*Pi*R

31.4=2*3.14*R

substitute 5 for radius= 2*5=10

10*3.14=31.4

3 0

3 years ago