Answer:
-16c
Step-by-step explanation:
Decrease means minus in this case
So:
-8c-8c=-16c
Answer:
<em>29.2 and 60.8 </em>
Step-by-step explanation:
x° + x° + 31.6° = 90°
2x + 31.6 = 90
2x = 58.4
x° = 29.2°
90° - 29.2° = 60.8°
<em>29.2</em><em> and </em><em>60.8</em><em> </em>
now, bear in mind that, the population is doubling every half-hour, so, in 3hrs, it doubled 6 times, thus, our time is 6 for 3hrs, since the cycle is every 30mins
now, for 24hrs? well, that's 48 half-hours, thus t = 48
i DON;T KNOW MAYBE 10+9=21 is the correct answer. let me know if it right! hope u have a grate day
Formula for the area of a circle:
A = πr² [A = area r = radius]
The radius is (half) the diameter. Since the diameter = 10cm, the radius = 5cm.
You know:
r = 5cm Substitute/plug this into the equation
A = πr²
A = π(5)²
A = 25π -> A = 25(3.14)
A = 78.5cm²