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3 years ago

Solve the inequality -2(k+3) < -2k - 7

1 answer:

8 0

This equation would be represented as a No Solution equation. Due to the fact that if you do inverse operation and combine like terms, your variables will cancel out.

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What rule would you allow to test weather (x,y) is on line l

n200080 [17]

Answer:

Step-by-step explanation:

If a point (x, y) lies on a straight line, coordinates of the point will satisfy the equation.

Slope of a line passing through two points C(4, 5) and D(8, 10),

m = $\frac{y_2-y_1}{x_2-x_1}$

m = $\frac{10-5}{8-4}$

m = $\frac{5}{4}$

Equation of the line passing through C(4, 5) and slope m = $\frac{5}{4}$

y - y' = m(x - x')

y - 5 = $\frac{5}{4}(x-4)$

y = $\frac{5}{4}x-5+5$

y = $\frac{5}{4}x$

If point B(4, 0) lies on the line CD,

0 = $\frac{5}{4}(4)$

0 = 5

Which is not true.

Therefore, point B doesn't lie on line CD.

8 0

2 years ago

Find the lowest common denominator 3x^3y^2 and 18xy^3

Katyanochek1 [597]

$3x^3y^2=(3)(x)(x)(x)(y)(y)\\\\18xy^3=(3)(3)(2)(x)(y)(y)(y)\\\\Answer:(3)(3)(2)(x)(x)(x)(y)(y)(y)=18x^3y^3$

7 0

3 years ago

PLEASE HELP!!!!!!!!!!!!!!!!!!!!!!

zalisa [80]

Answer:

The answe is 2/5m=4

Step-by-step explanation:

If he ate 4 of them, but it means he ate 2/5 muffins,

4 muffins = 2/5 muffins

You substitute x muffins for how much muffins she baked in all -

2/5 * x muffins = 4 or 2/5m = 4

Hope that helped :) <3

5 0

2 years ago

Write a system of equations to describe the situation below, solve using elimination or substitution.

tangare [24]

X= mountain dew y= coke

-(5x+5y=1160)
8x+5y=1523

-5x-5y=-1160
+
8x+5y=1523

3x=363
3 3

x=121 g of sugar in Mt. Dew

8x+5y=1523 plug in 3 in x

24+5y-24= 1523-24

5y= 1499
5 5

y= 299.8 grams of sugar in coke

4 0

3 years ago

La sombra que proyecta un edificio es de 16 m si el coseno del ángulo que se forma entre la punta de la sombra y el techo del ed

AlekseyPX

Answer:

dont understand clearly

Step-by-step explanation:

dont understand clearly

6 0

2 years ago