9 more keepers would need to be added i believe <span />
Answer:
2.99973 but i would put 3 just incase
Step-by-step explanation:
just search on the internet "right triangle calculator" and click one of the links
ANSWER:}------> <u><em>line b</em></u>
<span>SALES: 5x² + 2x – 80
</span>- COST: 5x² – x + 100
= ------------------
PROFIT: 0x²+3x-180
(+3x because we subtracted a negative (-x), which is called adding, similarly taking away 100 from negative 80 is -180.)
Checking:
5x² + 2x – 80
5(500)²+2(500)-80 = 1,250,920
5x² – x + 100
5(500)² – (500) + 100= 1,249,600
Profit = 1,250,920 - 1,249,600 = 1,320
0(500)²+3(500)-180 = 1,320 YAY! {:-)
Double Checking:
5x² + 2x – 80
5(5000)²+2(5000)-80 = 125,009,920
5x² – x + 100
5(5000)² – (5000) + 100= 124,995,100
Profit = 125,009,920 - 124,995,100 = 14,820
0(5000)²+3(5000)-180 = <span>14,820</span> YAY! {:-)
Step-by-step explanation:
y=2x+1
(-0.8; -0.6)
(x, y)
-0.6=2×(-0.8)+1
-0.6=-0.6
it's true
y=-3x-3
-0.6=-3×(-0.8)-3
-0.6=-5.4
it's not true
i hope you have understood how to do this exercise, so you can do B
