Answer:
16
Step-by-step explanation:
100/6.25=16
They are similar triangles so 20/4=15/x
solve for x
20x=15*4=60
x=3
Answer: girl
Step-by-step explanation: I think that you’re a girl because usually I would say boy, but then they say, “Nope!”, do I think this is a really trick question because this can describe either a boy or a girl.
Averaging formula:
A=sum of n values / n
Substitute the variables,
c is the average,
a and b are the test scores
∴
rearrange for b
Answer:
Step-by-step explanation:
This question is asking you "what angle gives you a cos of -square root 3/2"? The cosine by definition is the side adjacent to the angle over the hypotenuse. So set up the right triangle. We do not know which quadrant we are in since we are not told that, but if the cos is negative, then we are in either QII or QIII. In QII this is a 150 degree angle, and in QIII this is a 210 degree angle.
