Answer:
X= 130°
Step-by-step explanation:
360°= x°+107°+79°+44° (sum of angles in a quadrilateral)
360°= x°+230°
X= 360°-230°
X= 130°
F(1) = 160 is given to us. We'll use it to find f(2)
f(n+1) = -2*f(n)
f(1+1) = -2*f(1) ... replace every n with 1
f(1+1) = -2*160 ... replace f(1) with 160
f(2) = -320
Now use f(2) to find f(3)
f(n+1) = -2*f(n)
f(2+1) = -2*f(2) ... replace every n with 2
f(3) = -2*(-320) ... replace f(2) with -320
f(3) = 640
Finally, use f(3) to find f(4)
f(n+1) = -2*f(n)
f(3+1) = -2*f(3) ... replace every n with 3
f(4) = -2*640 ... replace f(3) with 640
f(4) = -1280
Final Answer: -1280
Answer:
11 for senior ticket and 13 for student ticket
Step by step explanation:
Make the equations 11x+7y=212 and 2x+14y=204 by saying x=senior ticket price and y=student ticket price
then substitute:
2x+14y=204 --> x+7y=102 --> x=102-7y
11x+7y=212 then use this equation ^ to make it 10x+7y-7y+102=212 --> 10x+102=212 --> 10x=212-102 --> 10x=110 --> x=11 so then price of senior ticket is 11 and then 11*11=121 and 212-121 is 91 and 91/7=13
1/17r - 17 = 42
1/17r = 42 + 17
1/17r = 59
r = 59 * 17/1
r = 1003 <== Rhode Islands population density (r)