Answer:
(first and brainliest??) 27 degrees
Step-by-step explanation:
The top triangle's missing angle is 75 degrees because 85+20=105 and 180-105=75. Knowing this, we know that the angle that's connecting the two triangles is also 75 degrees. 78+75=153 and 180-153=27
ANSWER:
D. - 4√6 - 3√2
STEP-BY-STEP EXPLANATION:
Let's first write the expression which we will be solving.
= √-6 ( √-16 - √3 )
Next, we will expand the expression.
= - √96 - √18
Then, we will simplify the surds using their highest factor that is a square number.
= - √16×6 - √9×2
= - 4√6 - 3√2