Answer:
D 56
Step-by-step explanation:
cos x = 5/9
x = 56°
have a great day
Answer:
228
Step-by-step explanation:
10 * 10^2 - 7.79* 10^3
they have to be to the same power to add or subtract
change 10*10^2 to proper scientific notation (only 1 number before the decimal) 1*10^3
1*10^3 - 7.79*10^3 = (1-7.79) * 10^3=-6.79*10^3
We know that
Based on the table
Percent%=[1-Decay factor]*100%
so
for decay factor=0.98
Percent%=[1-0.98]*100%----> 2%
for decay factor=0.50
Percent%=[1-0.50]*100%---->50 %
for decay factor=0.64
Percent%=[1-0.64]*100%----> 36%
for decay factor=0.23
Percent%=[1-0.23]*100%----> 77%
therefore
the answer is
36%
5^(-4) / 5^3 = 5^(-4 - 3) = 5^(-7)
