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3 years ago

What are the values of a and b, and what is an equation for the line?

Mathematics

1 answer:

dusya [7]3 years ago

3 0

Answer:

a = 1, b = 6

Step-by-step explanation:

slope of line = (5-2) / (12-3) = 3/9 = 1/3

(3-2) / (b-3) = 1/3

b-3 = 3 b = 6

(2-a) / (3-0) = 1/3

2-a = 1 a = 1

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Solve the equation: -5/4n = 40

stepladder [879]

$- \frac{5}{4}n = 40\ \ / \cdot(-\frac{ 4}{5}) \\ \\- \frac{5}{4}\cdot(- \frac{4}{5})n = 40\cdot (-\frac{4}{5})\\ \\ n = 8\cdot (-4) \\ \\n=-32\\ \\ Answer: \ B: \ \ n = -32$

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3 years ago

Find the distance between each pair coordinates. Select the correct answer. (-8, -8), (4, 8)

hodyreva [135]

ANSWER

20 units.

EXPLANATION

We want to find the distance between (-8,-8) and (4,8).

We use the distance formula:

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

We substitute the points into the formula to get:

$d = \sqrt{ {(4 - - 8)}^{2} + {(8 - - 8)}^{2} }$

We simplify to get;

$d = \sqrt{ {(12)}^{2} + {(16)}^{2} }$

$d = \sqrt{144+ 256}$

$d = \sqrt{400}$

$d = 20$

The distance between the two points is 20 units.

7 0

3 years ago

Read 2 more answers

5) A submarine is cruising at -40 meters (40 meters below the surface). It

Verdich [7]

Answer:

-25

Step-by-step explanation:

You begin with -40, then decrease by 20 so your new value is -60, then increase by 35 so your final value is -25m... hope this helps (:

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4 years ago

Which is the inverse of the following statement?

sergiy2304 [10]

Yes if it’s less than 90 it’s an acute but yes 90 is a right angle

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3 years ago

Does the table represent a proportional relationship

AleksandrR [38]

Answer:no

Step-by-step explanation: No, because all the ratios of y to x are not equal.

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3 years ago