Reason: This is 8^-3*x, which means that 1/8^3 =1/512x
8^7=1/512x
8^7 = 2097152
2097152=1/512x
Multiply by the reciprocal of the fraction to get rid of it.
x=2097152*512
2097152*512 = 1073741824
So, x=1073741824
8^7=x*8^-3 = x=1073741824
tan(77/36) = 0.037348004173
It looks like that on the calculator.
Infinity is not a number, it's a concept that says that the amount of numbers never ends.
x+y*y=6 = x=6-(y^2)
7x+7=112
subtract 7 from both sides.
7x=105
105/7 = 15, so x=15.
With this knowledge, the answer must be A because it is the only answer where x=15.
Multiply by m on both sides.
49=7m
divide by 7 on both sides.
m=7
10% of 380=38, so 90% of 380=380-38=342
