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kotykmax [81]
3 years ago
8

2x + 4y = 14 3x - 4y = -39

Mathematics
1 answer:
cestrela7 [59]3 years ago
5 0

Answer:

2x + 4y = 14 = x= −2y+7

3x - 4y = -39= x=  4=3 y−13

Step-by-step explanation:

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Determine the equation of the line that passes through the point (7, -23)and is perpendicular to the line y=1/3x-6Enter your ans
marishachu [46]

We have a line y = 1/3x -6

We want a line that is perpendicular to this line

Perpendicular lines have slopes that multiply to -1

1/3 * m = -1

3 * 1/3 *m = -1 * 3

m = -3

The slope of the perpendicular line is -3

y = mx+b where m is the slope and b is the y intercept

y = -3x+b

We have a point on the line ( 7 ,-23)

Substitute this point into the equation

-23 = -3(7)+b

-23 = -21+b

Add 21 to each side

-23+21 = -21+21+b

-2 = b

y = -3x-2

In slope intercept form, the line perpendicular passing through (7,-23) is

y = -3x-2

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1 year ago
The isosceles triangle below has one angle measure as shown what is the measure of each of the other angles?
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The answer would be 65°.
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3 years ago
One evening, Mr. Smith, Sam, and Sydney went to see the Myrtle Beach Pelicans’ Game. They each bought a ticket and a hat that co
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Answer:

You can't answer this question without knowing the total amount of money they all had in total.

3 0
3 years ago
What was the percent increase of China's
Rom4ik [11]

The percentage increase China's population from 1970 to 1995 is: 56.25%.

<h3>How to Calculate Percentage Increase?</h3>

Percentage increase = (Final Value - Original Value)/Original value × 100.

Given the following:

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Final Value = 1.25 billion

Final Value - Original Value = 1.25 - 0.8

Final Value - Original Value = 0.45

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4 0
2 years ago
What is the vertex form of y=-2x2+4x + 3?
sukhopar [10]

Answer:

y=-2(x-1)^2+5

Step-by-step explanation:

we have

y=-2x^2+4x+3

This is the equation of a vertical parabola open downward

The vertex represent a maximum

Convert the quadratic equation into vertex form

step 1

Factor -2

y=-2(x^2-2x)+3

step 2

Complete the square

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

y=-2(x^2-2x+1)+5

step 3

Rewrite as perfect squares

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The vertex is the point (1,5)

3 0
3 years ago
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