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2 years ago

Find the measure of angle K K N M 17 27 63 36

Mathematics

1 answer:

Zielflug [23.3K]2 years ago

3 0

9514 1404 393

Answer:

(b) 27

Step-by-step explanation:

It appears as though we're to assume that KM is a diameter, through circle center point N. That makes triangle KLM a right triangle, so angle K is the complement of angle M.

∠K = 180° -63° = 27°

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X-2y=18 2x+y=6 parallel perpendicular or neither

sergey [27]

<h3>Therefore they are perpendicular.</h3>

Step-by-step explanation:

A equation of line is

y =mx +c

Here the slope of the line is m.

Given equations are

x - 2y = 18

⇔-2y = -x +18

$\Leftrightarrow y =\frac{1}{2} x -9$ ............(1)

and 2x + y = 6

⇔y = -2x +6 ............(2)

Therefore the slope of equation (1) is $(m_1)$ = $\frac{1}{2}$

Therefore the slope of equation (2) is $(m_2)$ = -2

If two lines are perpendicular, when we multiply their slope we get -1.

therefore,

$m_1. m_2$ = $\frac{1}{2}$ . (-2) = -1

Therefore they are perpendicular.

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2 years ago

A map that was created using a scale of 1 inch : 3 miles shows a lake with an area of 18 square inches. what is the actual area

Dmitrij [34]

Answer: The area of the lake is actually 182 square miles 1 inch represents one side 3 miles long the other side is also 3 miles. 3×3=9 square miles. 1 Square Inch on the map represents 9 Square Miles.

Step-by-step explanation: If the area on the map is 18 square inches, and each square inch represents 9 square miles, multiply 18×9=182 to get the area of that big lake.

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2 years ago

Read 2 more answers

F(x)=7x^1/2, find f(x)

FrozenT [24]

Answer:

x=2y/7

Step-by-step explanation:

y=7x^1/2

7/2x=y

7/2x/7/2=y/7/2

4 0