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3 years ago

Solve for x: 3x^2-5x=2

1 answer:

8 0

$3{ x }^{ 2 }-5x=2\\ \\ 3{ x }^{ 2 }-5x-2=0\\ \\ \left( 3x+1 \right) \left( x-2 \right) =0\\ \\ \therefore \quad x=2\\ \\ \therefore \quad x=-\frac { 1 }{ 3 }$

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What is the slope-intercept form of the equation of the line that passes through the point (–6, 1) and is perpendicular to the g

Morgarella [4.7K]

Answer:

Step-by-step explanation:

3y = -2x - 5

y = -2/3x - 5/3

perp: 3/2

y - 1 = 3/2(x + 6)

y - 1 = 3/2x + 9

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7 0

3 years ago

3. What is the slope of the line that contains the

dlinn [17]

Answer:

I think the answer would be -1/2 or D.

Step-by-step explanation:

Use this formula for calculating slope : y2-y1 / x2 - x1

1. label the pairs, 1 and 2

(-6, 1) - ( x1, y1 ) or (4,-4) - (x1, y1)

(4,-4) - ( x2, y2) (-6,1) - (x2, y2)

(the order does not matter)

2. Than plug in your numbers

y2-y1 / x2 -x1 y2-y1 / x2 -x1

-4 - 1 / 4 - (-6) or 1 - (-4) / -6 - 4

= -5/10 or -1/2 = - 5/-10 or -1/2

im only in eight grade so i did my best explaining , and this hope it helps :)

7 0

3 years ago

If the circle below is cut from the square of plywood below, how many square inches of plywood would be left over? Use π = 3.14,

Elis [28]

Answer:

86in²

Step-by-step explanation:

Find the complete question attached

Area of the circle = πr²

Area of the square = L²

Length of the side of the square

r is the radius of the circle

r = L/2 = 20/2 =10in

Given

Length of the side of the circle = 20in

Area of the square = 20²

Area of the square = 400in²

Area of the circle =π(10)²

Area of the circle = 3.14(100)

Area of the circle= 314in²

Amount of plywood left over = 400in²-314in² = 86in²

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3 years ago

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3 years ago

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