Answer:
85 degrees
Step-by-step explanation:
The angles in a quadrilateral add to 360 degrees, so x+109+96+70=360.
This means that x=360-109-96-70=85 degrees
This can be solved by using the 30 60 90 triangle. The 30-60 side is equal to 2x, here it is 2x=18. The 60-90 side is equal to x. So this side is 18/2=9. The 30-90 side is by the way equal to the root of x, so here the root of 18
Answer:
x=-2
Step-by-step explanation:
You need the standard formula
the standard formula will be
-2x²-8x+18
x=-b/2a
=-(-8)/2(-2)
=8/-4
=-2
Answer:
She completes a lap every 3 minutes and 45 seconds
Step-by-step explanation:
Divide 60 by 16.
