3 years ago

If abc is parallel to dec=55 cde=65 and abc=2x

Mathematics

1 answer:

MrMuchimi3 years ago

3 0

Answer:

Step-by-step explanation:

ye4ayea

You might be interested in

Which of the following is the graph of the line y=-3/4x+5 ?

Naddika [18.5K]

Slope : -3/4
Y -intercept (0,5)

3 0

2 years ago

You go shopping and spend $150 on new clothes. You buy 5 shirts and 3 pants but do not remember how much each cost and have lost

natali 33 [55]

5 shirts for 15 a piece 3 pants for 25 a piece

8 0

3 years ago

Is 0.009 greater or less than .9

Ede4ka [16]

It is equal to. I think its because the zeros don't count

4 0

3 years ago

If cos Θ = square root 2 over 2 and 3 pi over 2 < Θ < 2π, what are the values of sin Θ and tan Θ? sin Θ = square root 2 ov

densk [106]

Answer:

$\huge\boxed{\sin\theta=-\dfrac{\sqrt2}{2};\ \tan\theta=-1}$

Step-by-step explanation:

We have:

$\\cos\theta=\dfrac{\sqrt2}{2},\ \dfrac{3\pi}{2}$

For sine use:

$\sin^2x+\cos^2x=1\to\sin^2x=1-\cos^2x$

Substitute:

$\sin^2\theta=1-\left(\dfrac{\sqrt2}{2}\right)^2\\\\\sin^2\theta=1-\dfrac{(\sqrt2)^2}{2^2}\\\\\sin^2\theta=1-\dfrac{2}{4}\\\\\sin^2\theta=\dfrac{4}{4}-\dfrac{2}{4}\\\\\sin^2\theta=\dfrac{4-2}{4}\\\\\sin^2\theta=\dfrac{2}{4}\to\sin\theta=\pm\sqrt{\dfrac{2}{4}}\\\\\sin\theta=\pm\dfrac{\sqrt2}{\sqrt4}\\\\\sin\theta=\pm\dfrac{\sqrt2}{2}$