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enyata [817]
3 years ago
12

Write an equation in point slope form for the line through the given point with the given slope (-3,5); m=2/3

Mathematics
1 answer:
Oksanka [162]3 years ago
7 0

Option D

The equation in point slope form for the line through the given point with the given slope (-3,5); m=2/3 is y - 5 = \frac{2}{3}(x + 3)

<h3><u>Solution:</u></h3>

Given that line through the given point (-3,5) with slope m = \frac{2}{3}

To find: equation of line in point slope form

<em><u>The equation of line in point slope form is given as:</u></em>

y - y_1 = m(x - x_1)

Where "m" is the slope of line

Given point (x_1, y_1) = (-3, 5)

Substitute the given point and given slope in point slope form,

y - 5 = \frac{2}{3}(x - (-3))\\\\y - 5 = \frac{2}{3}(x + 3)

Thus equation of line in point slope form is found. Option D is correct

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3 years ago
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The product of two consecutive positive odd numbers is 195.By constructing a quadratic equation and solving it, find the two num
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Step-by-step explanation:

x = one odd number

the second odd number is (x+2), as both are consecutive.

so,

x × (x + 2) = 195

x² + 2x = 195

x² + 2x - 195 = 0

the formula to solve this is

x = (-b ± sqrt(b² - 4ac))/(2a)

in our case

a = 1

b = 2

c = -195

x = (-2 ± sqrt(4 - 4×1×-195))/(2×1) =

= (-2 ± sqrt(4 + 4×195))/2 = (-2 ± sqrt(784))/2 =

= (-2 ± 28)/2 = -1 ± 14

x1 = -1 + 14 = 13

x2 = -1 - 14 = -15 which is invalid as the numbers are positive.

so, the two numbers are 13 and 15.

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Zach worked 1,040 hours this year and made $9 per hour. How much money did he earn over the course of the year?
loris [4]

Answer:

$9,360

Explanation:

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Answer:

50% of all students scored more than 48 marks.

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2) The Question says "nobody took 30, 48 or 70 as their grades. But 120 students gained less than 70", i.e. 120 are within the 75% of the sample.

3) If Q_{2}=48 then 50% of the students scored more than 48. And 50% of the students scored less than 48. That is also known as the Median.

So 50%, the half of all students scored more than 48 marks.

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