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4 years ago

9

Someone PLEASE help!!!!!!!!!!Solve the equation. b/-4 = -2

2 answers:

dangina [55]4 years ago

8 0

When solving algebraic equations, first decide what variable need to solved. In this case, the b variable. When solving for a variable, get the variable on one side and everything else on the opposite side of the variable you're solving for.

We have the equation $\frac{b}{-4} = -2$

What can we do to get the b variable by itself? Well, we can multiply the left-hand side of the equation by -4. But any thing we do on one side, we must do on the opposite side.

$\frac{b}{-4} * \frac{-4}{1} = -2 * \frac{-4}{1} \\ b = 8$

So, b is equal to 8.

posledela4 years ago

5 0

The answer for this equation is A=8

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$B(0,2)\to B''(1,0)$

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The transformation rule for 90° counterclockwise rotation is

$(x,y)\to(-y,x)$

This implies that:

$A(-1,4)\to A'(-4,-1)$

$B(0,2)\to B'(-2,0)$

$C(1,2)\to C'(-2,1)$

$D(2,4)\to D'(-4,2)$

This is followed by a translation 3 units to the right.

This also has the rule: $(x,y)\to (x+3,y)$

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$C'(-2,1)\to C''(1,1)$

$D'(-4,2)\to D''(-1,2)$

Therefore:

$A(-1,4)\to A''(-1,-1)$

$B(0,2)\to B''(1,0)$

$C(1,2)\to C''(1,1)$

$D(-2,4)\to D''(-1,2)$

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3 years ago