Two expressions each represent the sale price of the item are:
Expression B : 0.8p is correct
Expression D: p - 0.2p is correct
<em><u>Solution:</u></em>
The regular price of an item at a store is p dollars
The item is on sale for 20% off the regular price
Therefore,
Regular price = p dollars
Discount = 20 % of regular price
Therefore,
Discount = 20 % of p
Sale price = Regular price - discount price
Sale price = p - 0.2p
Thus Expression D: p - 0.2p is correct
On solving, sale price = p - 0.2p
Sale price = 0.8p
Thus expression B : 0.8p is correct
The answer to the question is 25%
He would need 1194 square inches of wrapping paper
The maximum value attained by the function will be 4
4 = 4cos(2x - π)
cos(2x - π) = 1
2x - π = 0
x = (nπ)/2
From x = 0 to x = 2π, n = 1, 2, etc
The equation will yield +4 for odd values of n and -4 for even values of n
Answer:
Step-by-step explanation:
<u><em>First time drawing:</em></u>
Total outcome is 8
Favorable outcome is 2
The probability that the first marble drawing in random is blue is
= 
<u><em>Second time drawing (with no replacement): </em></u>
Total outcome is 7 (8 - 1 = 7)
Favorable outcome is 2
The probability that the second marble drawing in random is yellow is
<em>The probability that the first marble is blue and the second marble is yellow is</em> × = 
=
