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inessss [21]
3 years ago
6

Find the slope of the line through each pair of points. (19, −2), (−11, 10)

Mathematics
1 answer:
Stels [109]3 years ago
4 0

Answer:

slope = -\frac{2}{5}

Step-by-step explanation:

1) Calculate the slope using slope formula, \frac{y_2-y_1}{x_2-x_1}. Use the two points given, substitute their x and y values into the formula, and solve.

\frac{(10)-(-2)}{(-11)-(19)} \\= \frac{10+2}{-11-19} \\= \frac{12}{-30}\\= -\frac{2}{5}

Thus, the slope is -\frac{2}{5}.  

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Using the arithmetic formula a1 + (n-1) d, a1 being the first term, n being the number you’re looking for and d being the common difference, you will get the answer of -57.

Here’s the work:

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6 0
3 years ago
6k ÷ 7 = -3<br> Solve for k
fomenos

Answer:

k = -3.5

Step-by-step explanation:

6k ÷ 7 = -3

Multiply 7 to both sides

6k = -21

Divide both sides by 6

6k/6 = -21/6

k = -3.5

To check if the answer is correct or not, you can always plug in -3.5 for k in the equation.

6(-3.5) ÷ 7 = -3

-21 ÷ 7 = -3

-3 = -3

-3 equals -3 so it is correct that k = -3.5

4 0
3 years ago
Sarihas to read a book for English class by the end of the week.She wants to read at least 200 pages in the first 5days of the w
zzz [600]
200/5 = 40...she should read at least 40 per day to reach her goal
6 0
3 years ago
X=a-2by(2) make y the subject
sladkih [1.3K]

Answer:

y = √{(a - x)/2b}

Step-by-step explanation:

x=a-2by²

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divide through by 2b

y² = (a - x)/2b

y = √{(a - x)/2b}

3 0
3 years ago
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Ilia_Sergeevich [38]

Answer:

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Step-by-step explanation:

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3 0
3 years ago
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