Answer:

You simply need to multiply

.
Multiply the numerators.

Multiply the denominators.

Simplify.
Answer:I need help with this so that’s why I looked it up
Step-by-step explanation:
Answer:

Then just plug in the values depending on the bridge you chose I'm pretty sure
also can I get brainliest?
You’re answer is 21
7(3)= 21 I hope I’m right :))
The x coordinate of S will be 1/2 * 2a = a.
and since the half triangle is 30-60-90 the y coordinate will be sqrt3 a
so S is (a , sqrt3a)