Explanation is in the file
tinyurl.com/wpazsebu
D is not a terminating decimal because it repeats *hint the dash mark above the 4*
Answer:
Step-by-step explanation:
cos 225 = -cos 45 = -1/√2.
sin 225 = -sin45 = -1√2.
Answer:
see explanation
Step-by-step explanation:
Let c represent the number of children, then
number of men = 4c and number of women = 2c
Sum the numbers of each and equate to 266
4c + 2c + c = 266, that is
7c = 266 ( divide both sides by 7 )
c = 38
Thus
4 × 38 = 152 and 2 × 38 = 76
The group consists of 38 children, 152 men and 76 women
Do a proportion. 28/100= 7/x. Now cross multiply and divide. 7 x 100=700 and 700 divided by 28 is 25. There are 25 students in the class. Answer is 25
