Substitute y=4x to the second equation:
x^2 + (4x)^2 = 17
x^2 + 16x^2 = 17
17x^2 = 17
x^2 = 17/17
x^2 = 1
x = 1 and -1
When x=1, y=4(1) = 4
When x=-1, y=4(-1) = -4
Thus the solutions would be (1,4) and (-1,-4). That would correspond to D. and A.
Paul owes paula 35 cents...she has a pocket full of nickels,dimes,and quarters.
largest number of coins would be : 7 nickels (7 coins)
smallest number of coins would be : 1 quarter and 1 dime (2 coins)
the difference is : 7 - 2 = 5 coins <=
Answer:
15
Step-by-step explanation:
7+8
Let the unknown be x


Both the base number are 3, so we equate the exponent:




Answer: 1/6