Answer:
(-2,7) those are the coordinate. in which he will land
Answer:
10 minutes for 480 copies. Divide 480 by 10 and get 48 copies per minute. If you divide 720 by 48 you get 15, so it takes 15 minutes to make 720 copies.
Step-by-step explanation:
500,000 is that number rounded.
Part a: For variable X using z score you have (x-30)/10, replace X for this expression in (a), i mean Z=2+10((x-30)/10) = 2+x-30= put this in the way of z score = (x-18)/1, so the mean is 18 and standard deviation is 1.
Part b: Z=X+Y= (x-30)/10 + (x-20)/8 = solve adding fractions = (18x-440)/80 now divide all the numbers between 18 (because you need to show as z score way) = (x-24.4)/4.4, so the mean is 24.4 and standard deviation is 4.4.
For part c,do the same.
Answer:
None of the above.
Step-by-step explanation:
Let us check each of the answer choices one bye one.
Choice A: 
solving for y we get:
which is not equal to our function h(x).
Choice B: 
.
This gives 
which is not equal to our function h(x).
Choice C: 
and 
.
The first expression does not contain y, thus it is not equivalent to h(x). The second equation already gives the value of y , and we see that it is not equal to h(x).
Therefore we conclude that none of the choices given are correct.
