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sertanlavr [38]
3 years ago
15

Need help, pls and ty❤️❤️

Mathematics
1 answer:
cluponka [151]3 years ago
7 0

Option D:

d=\sqrt{(19+1)^2+(20+1)^2}

Explanation:

Given data:

The points are (–1, –1) and (19, 20).

<u>To find the distance between two points:</u>

x_1=-1, y_1=-1, x_2=19, y_2=20

Distance formula:

d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

d=\sqrt{(19-(-1))^2+(20-(-1))^2}

d=\sqrt{(19+1)^2+(20+1)^2}

Hence option D is the correct answer.

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By the knowledge and application of <em>algebraic</em> definitions and theorems, we find that the expression - 10 · x + 1 + 7 · x = 37 has a solution of x = 12. (Correct choice: C)

<h3>How to solve an algebraic equation</h3>

In this question we have an equation that can be solved by <em>algebraic</em> definitions and theorems, whose objective consists in clearing the variable x. Now we proceed to solve the equation for x:

  1. - 10 · x + 1 + 7 · x = 37     Given
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By the knowledge and application of <em>algebraic</em> definitions and theorems, we find that the expression - 10 · x + 1 + 7 · x = 37 has a solution of x = 12. (Correct choice: C)

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