Answer:
the third angle= 180-x-(4x+15)
Step-by-step explanation:
if we subtract the two other angles the result will be the measure of the last one
Answer:
x= 1.75 y= 6.75
Step-by-step explanation:
substitution method
Answer:
99
x is a mean of 99 bowlers scores
Step-by-step explanation:
Sample mean x is the mean of data samples taken from a population.
x is the sample mean
Number of population = 466
Number of samples = 99
Since, x is the mean of data samples, then x is the mean of the 99 sample data taken.
Therefore, x is a mean of 99 bowlers scores.
Y = x + 14 (the larger bus has 14 more seats)
2x + y = 65 ( 2 x two times the seats , as it makes 2 trips the smaller van so the seats will be full twice maximum)
2x + x + 14 = 65 (sub the value of y = x+14 in the second equation)
3x = 51
x = 17 seat (smaller)
y = 31 seat (larger)
Answer:
C) 
Step-by-step explanation:
By the cos double angle formula, we know 
Substituting 
into the formula, we get
.
The answer is C.
