I need help with these please

Mathematics

1 answer:

ale4655 [162]3 years ago

5 0

Answer:

(0,-5)

(4,-2)

(-16,-17)

Step-by-step explanation:

Any (x,y) point that satisfies the equation is a solution. First simplify the equation.

3x - 4y - 8 = 12

3x - 4y = 20

Substitute x = 0 and y = -5.

The equation becomes 3(0) -4(-5) = 20.

0 + 20 = 20

This is a solution.

The following points also work and are solutions.

(4, -2) and (-16,-17)

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Which is the best approximation for the measure of angle ABC?

qwelly [4]

Answer:

58.3°

Step-by-step explanation:

Missing Information:

In this question the diagram is missing Following are the attachment of diagram of the given question.

As we seen that the vertex c is making the right angle i,e 90° also there is an acute angle the Hypotenuse: 20 cm and the perpendicular is 10.5 cm

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$cos\ x\ =\ \frac{perpendicular}{Hypotenuse} \\$