
This is because



(that is, replace any instance of <em>x</em> in the definition of <em>g</em> with √<em>x</em> )
and


(replace any <em>x</em> in <em>f</em> with √<em>x</em> - 1)
Also acceptable:


(assuming <em>x</em> is not negative)
Answer:
50 black keys
Step-by-step explanation:
for every set of 7 white keys there are 5 black keys
72/7 = 10
so there is a total of 10 full sets of keys
then you have 2 white keys remaining but that doesn't matter because they will just be on the dies and already have a black key next
so this means that you only have to calculate the number of 10 sets of black keys and thats 5 x 10.
hope this helps : )
9-4=-5 would be the smallest answer
Answer:
A= $0.60
B= $5.62
Step-by-step explanation:
A: If you do 1.5*0.10, the product will be 0.15. If you do 1.5*0.50, the product would be 0.75. So, 0.75-0.15 is 0.6.
B: 2.5*0.50 is 1.25 and 1.25*0.10 is 0.125. So, if you add the products together, you would get 1.375 but because it's money, you have to round it to $1.38 and $7-$1.38 is $5.62.