1. Eyeballing the data, the best fit will be pretty close to a line between the leftmost point and the rightmost point.
We estimate those points as (4,220) and (28,470)
The point point form for a line joining (a,b) and (c,d) is
(c-a)(y-b) = (d-b)(x-a)
(28 - 4)(y - 220) = (470 - 220)(x - 4)
24(y - 220) = 250(x-4)
24y - 5280 = 250x - 1000
24y = 250 x + 4280
y = (250/24) x+ (4280/24)
Approximately that's,
y = 10.4 x + 178
Answer: 4th choice, 10.4x + 180
2. For 48 wheelbarrows,
y = 10.4(48)+180 = 679.2
Answer: 679.2 liters of sand
A-b=c
one answer is
hihihihi
Answer: A quotient is the answer to a division problem. The divisor is the number of parts you divide the dividend by. The dividend is the number you are dividing .
Step-by-step explanation:
Answer: x^2-2x-1
Step-by-step explanation:
0=x^2+2x+1
x^2-2x-1
Answer: 10
Step-by-step explanation:
