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4 years ago

What is R? i=v/R What is ec? i=ec/3

Mathematics

1 answer:

Juliette [100K]4 years ago

6 0

R would be iv because you have to do cross multiplication.

ec would be 3 because you have to do cross multiplication.

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The isosceles triangle theorem states that if two sides of a triangle are congruent, then the angles those sides are congruent.

inessss [21]

Step-by-step explanation:

option A

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7 0

3 years ago

Read 2 more answers

Identify the values of the variables. Give your answers in the simplest radical form.

Lena [83]

Answer/Step-by-step explanation:

✔️Find k:

Reference angle = 60°

Hypotenuse = k

Opposite = 9

Therefore, using trigonometric ratio, we have:

$sin(60) = \frac{9}{k}$

Multiply both sides by k

$k*sin(60) = 9$

Divide both sides by sin(60)

$k = \frac{9}{sin(60)}$

$k = \frac{9}{\frac{\sqrt{3}}{2}}$

$k = 9*\frac{2}{\sqrt{3}}$

$k = \frac{18}{\sqrt{3}}$

Rationalize

$k = \frac{18*\sqrt{3}}{\sqrt{3}*\sqrt{3}}$

$k = \frac{18\sqrt{3}}{3}$

$k = 6\sqrt{3}$

✔️Find f:

Reference angle = 60°

Opposite = 9

Adjacent = f

Therefore, using trigonometric ratio, we have:

$tan(60) = \frac{9}{f}$

Multiply both sides by f

$f*tan(60) = 9$

Divide both sides by tan(60)

$f = \frac{9}{tan(60)}$

$k = \frac{9}{\sqrt{3}}$

Rationalize

$k = \frac{9*\sqrt{3}}{\sqrt{3}*\sqrt{3}}$

$k = \frac{9\sqrt{3}}{3}$

$k = 3\sqrt{3}$

8 0

3 years ago

Having trouble with proving Lines Parallel on this page. Help?

snow_tiger [21]

For #1. Step 1: Set the equations equal to one another: (3x + 20) = (2x + 40)

Step 2: Subtract 2x on both sides of the equal sign: (3x-2x + 20) = (2x-2x + 40)

x + 20=40

Step 3: Subtract 20 on both sides of the equal sign: x + 20-20= 40-20

x=20

Step 4: plug in 20 for x: 3(20) + 20= 80 & 2(20) + 40= 80