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3 years ago

What is the slope of the line in the following graph? 1/3 1/2 2 3

Mathematics

2 answers:

tatyana61 [14]3 years ago

7 0

Answer:

the answer is 1/3

Step-by-step explanation:

ivanzaharov [21]3 years ago

5 0

For every 3 you go across you go up 1 so the gradient is rise/run = 1/3

Therefore gradient is 1/3

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Solve the equation: k^2+5k+13=0

mr_godi [17]

Step-by-step explanation:

k² + 5k + 13 = 0

Using the quadratic formula which is

$x = \frac{ - b \pm \sqrt{ {b}^{2} - 4ac } }{2a} \\$

From the question

a = 1 , b = 5 , c = 13

So we have

$k = \frac{ - 5 \pm \sqrt{ {5}^{2} - 4(1)(13) } }{2(1)} \\ = \frac{ - 5 \pm \sqrt{25 - 52} }{2} \\ = \frac{ - 5 \pm \sqrt{ - 27} }{2} \: \: \: \: \: \: \\ = \frac{ - 5 \pm3 \sqrt{3} \: i}{2} \: \: \: \: \: \:$

Separate the solutions

$k_1 = \frac{ - 5 + 3 \sqrt{3} \: i }{2} \: \: \: \: or \\ k_2 = \frac{ - 5 - 3 \sqrt{3} \: i}{2}$

The equation has complex roots

Separate the real and imaginary parts

We have the final answer as

$k_1 = - \frac{5}{2} + \frac{3 \sqrt{3} }{2} \: i \: \: \: \: or \\ k_2 = - \frac{5}{2} - \frac{3 \sqrt{3} }{2} \: i$

Hope this helps you

8 0

2 years ago

if y represents total earnings in dollars and x represents hours worked, then which equation models the wages of someone who mak

Klio2033 [76]

Answer: $y=11.50x$

Step-by-step explanation:

1. You have the following information given in the problem above:

- y represents total earnings in dollars .

- x represents hours worked.

2. Keeping on mind that the expression must model the wages of someone who makes $11.50 in an hour, this amount of money per hour must multiply the hours worked, which is represented by x.

3. Therefore, you can write the following equation:

$y=11.50x$

5 0

3 years ago

G = (5,-10),(25,-50),(50,100)

Murrr4er [49]

This is the answer not sure if you wanted it graph or not

8 0

3 years ago

An you help me now with these |x + 2| + 16 = 1 i need help :( |2x + 6| − 4 = 20 nd help solving

krok68 [10]

|x + 2| + 16 = 1
 - 16 - 16
 |x + 2| = -15
 x + 2 = -15 U x + 2 = 15
 - 2 - 2 - 2 - 2
 x = -17 x = 13

|2x + 6| - 4 = 20
 + 4 + 4
 |2x + 6| = 24
 2x + 6 = 24 U 2x + 6 = -24
 - 6 - 6 - 6 - 6
 2x = 18 2x = -30
 2 2 2 2
 x = 9 x = -15

3 0

3 years ago

Please help it due tomorrow and I don't know what to do :)

Anit [1.1K]

The answer should be 5

8 0

3 years ago

Read 2 more answers