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3 years ago

Find the terminal point on the unit circle determined by

Mathematics

1 answer:

Flauer [41]3 years ago

3 0

Answer:

This is just basic 30-60-90 triangle stuff, recognizing that the angle takes you into the 2nd quadrant.

-0.5 + i(√3)/2 in the complex plane or

(-.05, (√3)/2 ) in the xy-plane

Step-by-step explanation:

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3 years ago

What is the length of HG?

Leviafan [203]

Answer:

$HG = 5$

Step-by-step explanation:

Given

$HE = 8mm$

$EF = 12mm$

$Area = 68mm^2$

Find the length of HG

First, it should be noted that the displayed figure is a trapezium

<em>The area of a trapezium is calculated by multiplying the sum of parallel sides by half its height;</em>

In this case;

$Area = \frac{HG + EF}{2} * HE$

Substitute the values of Area, HE and EF

$68 = \frac{HG + 12}{2} * 8$

$68 = (HG + 12) * 4$

Divide both sides by 4

$\frac{68}{4} = \frac{(HG + 12) * 4}{4}$

$17 = HG + 12$

Subtract 12 from both sides

$17 - 12 = HG + 12 - 12$

$5 = HG$

$HG = 5$

<em>Hence, the length of HG is 5mm</em>

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3 years ago

If a line contains the point (0, -1) and has a slope of 2, then which of the following points also lies on the line?

faust18 [17]

Answer:

C (0,1)

Step-by-step explanation:

(1- -1)/(1-0)= slope of 2

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3 years ago

Can anyone help me please

statuscvo [17]

Z= 90
It’s a circle theorem, drawing a triangle from a diameter of a circle creates a right angle
And then there’s always 180 degrees in a triangle, so
Y= 40

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