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Tanzania [10]
3 years ago
5

Use slopes to determine if the lines 6x + 9y = 2 and 9x + 6y = -3 are perpendicular.

Mathematics
1 answer:
trasher [3.6K]3 years ago
8 0
Answer:

Explanation:

Make the equation into slope-int form:
6x + 9y = 2
9y = -6x + 2
y = (-6/9)x + 2/9
y = (-2/3)x + 2/9

9x + 6y = -3
6y = -9x - 3
y = (-9/6)x - 3/6
y = (-3/2)x - 1/2

In order for a line to perpendicular the slope needs to be an opposite reciprocal of the other. If our first slope is -2/3 then the opposite reciprocal should be 3/2 but, we found out that our second slope is -3/2 not 3/2 therefore, it will not perpendicular.

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7 0
3 years ago
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Find the slope of the line that passes through (-33, -27) and (-32, -25).
Snezhnost [94]

Answer: 2.

Step-by-step explanation:

You can find the slope between two points by using the "rise-over-run" method.

This method essentially calculates the slope as the quotient of the vertical span and horizontal span of the two points.

You can find it through this formula:

s = \frac{y2 - y1}{x2 - x1}

To find the slope, use two points, (x1, y1) and (x2 and y2).

For the points given, I will replace those values in the formula with (-33, -27) and (-32, -25).

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The slope of the line is 2.

6 0
2 years ago
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What are the roots of the equation 2x2<br> 13x + 25 = 0 in simplest a + bi form?
butalik [34]
13x+25=0
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8 0
3 years ago
2 times 2 times 13 what is the missing number
atroni [7]
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5 0
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Hiii dont mind the answer that i put but im not sure if im right, can someone please help me?
AVprozaik [17]

Answer:

Option 4

Step-by-step explanation:

The volume of a cylinder is going to be the area of the base (which is a circle) times the height. if you have cylindrical mug, then you can use the base area×height relationship, but it won't be exact because some of the volume is going to be used for the walls of the mug itself.

Anyways:

Volume = Base Area × Height

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3 years ago
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