3pi/7 < pi/2 because 3/7 < 1/2, and pi/2 is a right angle. Conclusion: the angle opposite side a is an acute angle. In this situation the triangle could be a right triangle, in which case C would be true, but it does not have to be a right triangle, so don´t choose C. Similarly, it could be an acute triangle, in which case B would be true, but it does not have to be, so don´t choose B. Also, A says the angle opposite side a is obtuse, which is false. So don´t choose A. That leaves D, which says the angle opposite side a is acute, which we know is true. So the answer is <span>D. b^2 + c^2 > a^2</span>
A= P(1+r)^t, where P= initial value, r= interest rate in %, and t = number of years.
However, if there isa decrease in value, the formula becomes:
A= P(1-r)^t and in our case :
A = 30,000(1- 0.24)^t OR A = 30,000(0.76)^t
25% sugar syrup means it has 25% sugar and 75% water
Let the total weight of solution is 'x'
amount of sugar = 15g = 25% of x = x/4
x/4 = 15
x = 60
so, amount of water required is = 75 % of x = 3/4 x
putting x = 60
amount of water required = 45 g
Log shows exponent in wich you need to put base to get x,
so you have the only choice here it is A,
<span> 3^2 = x , here is the base 3, exponent 2,
</span>A. Log base of (3) x = 2
