Answer:
A
Step-by-step explanation:
Basically, this is an observational study because the researcher does not apply any treatment.
It's not an experiment because there is no experimentation involved. :)
It's not double-blind because in that case the researcher would have to apply something to two kinds of groups. one aware one the other not. not the case.
It's not D because The observations are comparing two kinds of subjects and they are not looking for a cause and effect.
your right Step-by-step explanation:
1. (0.5)2=1
2. (-0.2) + (-0.05) = -0.25
3. |-3 + 2.75| = 0.25
4. -(-0.25) = 0.25
5. 2x - 1.75x = 0.25x
So your answers are 3 and 4.
Answer:
First of all, lateral means the sides of the can in this case.
Calculate the surface area of the can, subtract the area of the top and bottom which are two circles, and theres the answer!
Step-by-step explanation:
1. SA= 2πrh+2πr^2
= 2(π)(1.3)(4) + 2(π)(1.3^2)
= 43.29- (π1.3^2)^2
=15.09
Please note that ^(a number) means to the power of (that number). Hope this helps!
Yo sup??
Lenght of two side will be equal to 20 in as its an isoceles triangle.
The third side will be
x^2=b^2+h^2 (by pythagoreas theorem)
=9^2+9^2
x=9√2 in
Therefore the perimeter is = 9+9+9√2
=9√2(√2+1) in
Hope this helps.
