Use the graph to determine a. the function's domain; b. the function's range; c. the
1 answer:
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Answer:
Step-by-step explanation:
Hello, let's say that the price was P, a real number.
After 20% discount it become P - 20% * P = P* (1-20%) = P * (1 - 0.2)
= P * 0.8
And then we take 15% for the VAT, the new price become P * 0.8 * ( 1 + 15%)
= P * 0.8 * 1.15
And this is equal to 22080, so
P * 0.8 * 1.15 = 22080
and the amount of the VAT is P *0.8 * 0.15
Hope this helps.
Thank you.
Answer:
Sometimes
Step-by-step explanation:
When x is a nonzero integer, then x can be
- negative;
- positive.
If x is negative, then is positive (multiplying negative number by -3 you get positive number).
If x is positive, then is negative (multiplying positive number by -3 you get negative number).
So, the statement "When x is a nonzero integer, the quantity -3x will be negative" is sometimes true.