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Anastaziya [24]

2 years ago

6

What is the positive solution to this equation? 3x2−20x=7

1 answer:

GREYUIT [131]2 years ago

7 0

Answer:

6-20x=7

-20x= 7-6

-20x=14

-20×/20=14/20

×=14/20

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Mademuasel [1]

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Step-by-step explanation:

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50/5=10

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What is the equation of a circle with center (-7,4) and radius 8?

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3 years ago

Read 2 more answers

-4x + 7 = 2y - 3<br> y-intercept:<br><br> x intercept:

pantera1 [17]

Answer:

x-intercept: $\bigg(\frac{5}{2}, \:0\bigg)$

y-intercept: $(0,\:5)$

Step-by-step explanation:

To find the x-intercept, substitute in $0$ for $y$ and solve for $x$ .

$-4x + 7 = 2y - 3$

$-4x+7=2\left(\bold{0}\right)-3$

Simplify 2(0): $-4x+7=2\cdot \:0-3$

Subtract 0 - 3 = -3: $-4x+7=-3$

Subtract 7 from both sides: $-4x+7-7=-3-7$

Simplify: $-4x=-10$

Divide both sides by -4 $\frac{-4x}{-4}=\frac{-10}{-4}$

$\bold{x=\frac{5}{2}}$

To find the y-intercept, substitute in $0$ for $x$ and solve for $y$ .

$-4x + 7 = 2y - 3$

$-4(\bold{0})+7=2y-3$

Switch sides: $y-3=-4\left(0\right)+7$

Simplify -4(0): $2y-3=-0+7$

Add 3 to both sides: $2y-3+3=7+3$

Simplify: $2y=10$

Divide both sides by 2: $\frac{2y}{2}=\frac{10}{2}$

$\bold{y=5}$

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2 years ago

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Lynna [10]

Answer:

x=4

Step-by-step explanation:

16 = 4x

16/4 = x

4 = x

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3 years ago