Answer:
a = 60
b = 60
Step-by-step explanation:
We know that BC is 90°, because of the square thingy.
YB is 30°.
Now we do 180 - 30 - 90 = 60 (180 is the straight angle)
60 = b
Then a is the same.
Answer:
492,063.49 times
Step-by-step explanation:
In order to find how many times 6.3 × 10^11 fits in 3.1 × 10^17, you can change its exponent to 10^17 and see how many times the resulting number would fit:
6.3 × 10^11
--> .0000063 (decimal moved left 6/number divided by 10^6) × 10^17 (multiplied by 10^6)
This statement is the same as 6.3 × 10^11.
Now, you can just see how many times .0000063 fits in 3.1 by dividing 3.1 by .0000063:
3.1 ÷ .0000063 = 492,063.492
So, 6.3 × 10^11 fits in 3.1 × 10^17 492,063.49 times (rounded to the hundredths).
Answer: average y = -8 average y =2
ARC : -4
Step-by-step explanation:
3 hours and 57 minutes assumingthe 4:27 is also pm