Katie won't have more than 100 shells until the 7th day
Answer:
x^2 -17x+72
Step-by-step explanation:
(x – 8) (x – 9)
FOIL
first x*x =x^2
outer -9*x = -9x
inner -8*x = -8x
last = -9*-8 = 72
Add them together
x^2 -9x-8x+72
x^2 -17x+72
130 + 2x = 180
2x = 180 - 130
2x = 50
x = 50/2
x = 25
2x + 4y + 54 = 180
2(25) + 4y + 54 = 180
50 + 4y + 54 = 180
4y + 104 = 180
4y = 180 - 104
4y = 76
y = 76/4
y = 19
answer: x = 25 and y = 19
Answer:
See below
Step-by-step explanation:
ΔMNP rotates by 990°
So, the image lands at 270° or -90°
<u>Since initial position of the triangle is not given, I'll put every scenario:</u>
- Original Q1 → Image Q4
- Original Q2 → Image Q1
- Original Q3 → Image Q2
- Original Q4 → Image Q3
Y = x - 6
x = -4
plug in the second equation in to the first
y = -4 - 6
y = -1(4 + 6)
y = -1(10)
y = -10
The solution to the system is not listed in the options. The correct solution is (-4, -10).