Find the value of x. Show all work. (9x+9)° 45 5x

Mathematics

1 answer:

Lapatulllka [165]2 years ago

5 0

Angles on a straight line add to 180 degrees. This means that the missing angle in the triangle is 180 - 9x + 9.

Next, angles in a triangle add up to 180 degrees. This means that:
45 + 5x + 180 - 9x + 9 = 180

We can simplify this down:
234 - 4x = 180

Now subtract 234 from both sides:
-4x = -54

Finally divide both sides by -4:
x = 13.5 degrees

Hope this helps!

You might be interested in

Find the nonpermissible replacement for s in this expression s-1/s-5

Mrrafil [7]

Answer: s^2-5s-1/s

Step-by-step explanation: Simplify the expression.

Hope this helps you out! ☺

6 0

2 years ago

How to convert from rectangular to polar coordinates pre calc?

Verizon [17]

Given the polar coordinate (r,θ), write. x=rcos θ and. y=rsin θ.Evaluate cos θ and. sin θ.Multiply cos θ by. r. to find the x-coordinate of the rectangular form.Multiply sin θ by. r. to find the y-coordinate of the rectangular form.

6 0

2 years ago

Please help this is a 30 60 90 triangle

natka813 [3]

Answer:

See below

Step-by-step explanation:

$x = \frac{1}{2} \times \sqrt{6} \\ \\ x = \frac{ \sqrt{6} }{2} \\ \\ y = \frac{ \sqrt{3} }{2} \times \sqrt{6} \\ \\ y = \frac{ \sqrt{3 \times 6} }{2} \\ \\ y = \frac{ \sqrt{18} }{2} \\ \\ y = \frac{ 3\sqrt{2} }{2}$