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Hitman42 [59]
3 years ago
12

If g(x) = 3x - 5 and g(a) = 19, then 2a =?​

Mathematics
1 answer:
user100 [1]3 years ago
3 0

Answer:

Step-by-step explanation:

if g(a)=19

19=3a-5

24=3a

a=8

2a=16

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Answer:

<u>3</u><u>z</u><u>^2 + 3z - 6 </u>=0

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3 (z^2 + z -2) = 0

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Step-by-step explanation:

  1. factor out the GCF (3) and divide everything by it, and then set it equal to zero.
  2. since you have a degree of 2, factor it into two binomials that start with the square root of the first term and end with the square root of the second term.
  3. 3=0 is extraneous solution so we leave it, then we set each binomial equal to zero to solve for z.

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3 years ago
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Step-by-step explanation:

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3 years ago
The lines shown below are perpendicular. If the green line has a slop of 2/5, what is the slope of the red line?
aivan3 [116]

The slope of the red line that is perpendicular to the green line is: -5/2.

<h3>What are the Slope Values of Perpendicular Lines?</h3>

When one line lies perpendicular to another line, the slope of one must be the negative reciprocal of the other line.

<h3>What is the Negative Reciprocal of a Number?</h3>

If given a number, i.e. a/b, the negative reciprocal of a/b would the opposite value of the reciprocal of a/b.

Reciprocal of a/b is b/a. Negative reciprocal of a/b would therefore be: -b/a.

Given that the slope of the green line is: 2/5. And it is perpendicular to the red line. The slope of the red line would be the negative reciprocal of 2/5.

Negative reciprocal of 2/5 is -5/2.

Therefore, the slope of the red line is: -5/2.

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brainly.com/question/1362601

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