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3 years ago

15

Using the slope formula, find the slope of the line through the points (0,0) and (5,15) . Use pencil and paper. Explain how you

can use mental math to find the slope of the line.

1 answer:

torisob [31]3 years ago

7 0

Answer:

Slope = 3

Step-by-step explanation:

The formula for calculating the slope is expressed as:

m = y2-y1/x2-x1

From the coordinate, x1 = 0 y1 =0 x2 = 5, y2 =15

m = 15-0/5-0

m = 15/5

m = 3

Hence the slope is 3

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dalvyx [7]

Use the depreciation formula.

$\sf p(1-r)^n$

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Simplify the exponent:

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Multiply:

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8 0

3 years ago

Help me please!!?!?? ?

Mekhanik [1.2K]

1

$3x^2 + 5y^2 - 12x + 30y + 42 = 0$

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$3(x^2 - 4x) + 5(y^2 + 6y) = -42$

$3(x^2 -4x + 4) + 5(y^2 + 6y + 9) = -42 + 12 + 45$

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Ellipse, same signs different coefficients on $x^2$ and $y^2$

2

$9x^2 -36x - 4y^2 + 8y = 4$

$9(x^2 - 4x + 4) - 4(y^2 - 2y + 1) = 4 + 36 - 4$

$9(x- 2)^2 - 4(y - 1^2) = 36$

Hyperbola, opposite signs on $x^2$ and $y^2$

3

$y = x^2 +2x + 3 = (x + 1)^2 + 2$

parabola

4

$x^2 - 4 x + y^2 + 4y = 4$

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$-9x^2 - 18x + 4y^2 - 8y = 41$

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hyperbola, opposite signs

6

$-4x = y^2 - 2y - 11 = (y-1)^2 - 12$

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7

$2(x^2 + 6x) + 3(y^2 - 8y) = -60$

$2(x^2 + 6x + 9) + 3(y^2 - 8y + 16) = -60 + 18 + 48$

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8

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4 0

3 years ago

Help me please!! I need a good grade

Vadim26 [7]

Answer:

The answer of this question is 8.06 cm.

Step-by-step explanation:

I came to know my answer is correct because hypotenuse is bigger than base and perpendicular in right anhled triangle.

8 0

3 years ago

The factors of x2 + x – 12

amm1812

Answer:

$x^2+x-12=(x-3)(x+4)$

Step-by-step explanation:

To factor $x^2+x-12$

Find factors of -12 that have a sum of 1.

Factors of -12: 1 and -12, 2 and -6, 3 and -4, 3 and -3, 6 and -2, 12 and -1

Factors of -12 that have a sum of 1: -3 and 4

Therefore, $x^2+x-12=x^2+4x-3x-12$

Factor: $x(x+4) -3(x+4)$

Factor out common term $(x+4)$ : $(x-3)(x+4)$

6 0

3 years ago

600 or 600 decreased by 20% and then increased by 20% of the result? Which amount is larger and by how much

ohaa [14]

Answer:

The initial value of 600 is larger and larger by 24.

Step-by-step explanation:

First of all a 20% decreased of 600.

So, the new value will be $600(1 - \frac{20}{100}) = 600 \times 0.8 = 480$ .

Now, then it is increased by 20% i.e. 480 will be increased by 20%.

So, the new value will be $480(1 + \frac{20}{100}) = 480 \times 1.2 = 576$ .

Therefore, the initial value of 600 is larger and larger by (600 - 576) = 24. (Answer)

3 0

3 years ago