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2 years ago

What would be the slope of the line perpendicular to the line 2x+3y=-15

Mathematics

2 answers:

ANTONII [103]2 years ago

7 0

Answer:

3/2

Step-by-step explanation:

the slope of the equation is -2/3 so the other slope must be opposite reciprocal

EleoNora [17]2 years ago

5 0

Answer:

3/2

Step-by-step explanation:

When you rearrange the equation into y=mx+b, you get y=-2/3x-15

The slope of the given line is -2/3 and you have to take the opposite reciprocal so flip the fraction and change the sign.

This gives the slope 3/2

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How do you work out (7x+3)(7x-3)

spin [16.1K]

We can solve this using the FOIL method.

= (7x + 3)(7x - 3)

= (7x * 7x) + (7x * -3) + (3 * 7x) + (3 * -3)

= 49x - 21x + 21x - 9

= 49x - 9

Hope This Helped! Good Luck!

7 0

2 years ago

Convert 1/1000 to a decimal or percent please and thank you

Sonbull [250]

Answer:

0.001 ,0.10 pls give me brainliest

Step-by-step explanation:

In decimal fraction we write it as 1/1000. In decimal number we write it as . 001 and we read it as point zero zero one.

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3 years ago

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e-lub [12.9K]

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7 0

2 years ago

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Solve 8.2 w less-than-or-equal-to 29.52. Which of the following must be true about the inequality and the resulting graph? Selec

vladimir1956 [14]

Answer:

A, B, E

Step-by-step explanation:

$8.2w \le 29.52$

Divide both sides by 8.2

$w \le 3.6$

Correct choices:

A. $w \le 3.6$

B. The arrow points left.

E. There is a closed circle at 3.6.

7 0

2 years ago

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Find the axis of symmetry for this parabola:

lara31 [8.8K]

Answer:

x = - 1

Step-by-step explanation:

The equation of the axis of symmetry for a parabola in standard form

y = ax² + bx + c : a ≠ 0 is found using

x = - $\frac{b}{2a}$

y = - x² - 2x - 5 ← is in standard form

with a = - 1 and b = - 2, thus equation of axis of symmetry is

x = - $\frac{-2}{-2}$ = - 1

Equation of axis of symmetry is x = - 1

6 0

3 years ago