The two lines are perpendicular because both of the lines intersects
Answer: so Miguel payed $33
steps:
1. first find what 40% of $55 which gives us $22
2. Final Price = Original Price - Discount
Final Price = 55 - 22
Final Price = $33.00
-10x+9x+14-1=4
then you add similar elements which gives you -x+14-1=4
next you subtract the numbers 14-1=13
then subtract 13 from each side -x+13-13=4-13
then you simplify -x = -9
divide both sides my negative 1 -x/-1 = -9/-1
and then you get the answer: x=9
Answer:
x=m2/10 − 1/5
x=m2/9 − 8/9
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
clearly, the equation has to allow t=0, and for that point we need to get 100% (of carbon-14) as result.
and so we also see, that the function calculates the % of the remaining carbon-14.
so, we need the desired outcome 60(%),
because 60 = 100 - 40.
and again, we need a function that shows t=0.
the only answer option fulfilling both criteria is A.
B divides in the exponent by t, so t=0 is not in the domain of the function.
and C and D aim for the wrong remaining percentage.