Answer:
total students = 40probability of selecting a student from art club= 12/40= 3/10
Step-by-step explanation: because am big math
In mathematics there is a rule of exponents where we can "distribute" the powers/exponents in the numerator and denominator of any expression. Therefore, given an expression as
, the exponent n can be "distributed" as:
.
In our case, the power, n=11; a=7 and b=4. Thus, the expression
, can be written as
.
Thus, out of the given options, option A is the correct option.
Answer:
2.7
3
6
Step-by-step explanation:
2.7×3 = 8.1
3x3=9
6×3= 18
18-8.1= 9.9 < 10
18-9= 9 < 10
18-18=0 < 10
We can solve the length of u using Laws of Cosine since we are given with lengths of two side and one angle.
The solution is shown below:
cos U =( s²+t²-u²)/2st
cos 37°= (9²+15²-u²)/2*9*15
0.79863*270=306-u²
u²=306-215.63
u=9.5 units
Therefore, the length of u is 9.5cm.