You just foil it. Multiply in by in the out. and the out by in and out by out
Answer:
300000 lol
Step-by-step explanation:
i have spoken, that is all, goodbye:)
According to question,
= 8x² + 6x - 2 = 228
= 8x² + 6x - 230 = 0
= 2(4x² + 3x - 115) = 0
= 2(4x² + 23x - 20x - 115) =0
= 2(x(4x +23) -5(x - 23) )= 0
= 2((x-5)(4x+23)) = 0
x = 5 , x = -23/4
let x = 5
so length 4x - 1
= 4 × 5 - 1
= 19 ft
width = 2x + 2
= 2 × 5 + 2
= 22 ft
_______
gosh! finally did it.. was too big -_-
Answer:
i. daily charge = £13
ii. fixed charge = £6
Step-by-step explanation:
Number of days (x) | Cost in £ (y)
1 | 19
2 | 32
3 | 45
4 | 58
5 | 71
Using the given table, we can represent this situation with an equation in slope-intercept form, y = mx + b, where,
m = slope = daily charge
b = y-intercept = fixed charge
✔️Thus, using the coordinates of any two given pairs, say (1, 19) and (2, 32):
Slope (m) = ∆y/∆x = (32 - 19)/(2 - 1) = 13/1
Slope (m) = 13
Therefore daily charge = £13
✔️To find y-intercept (b), substitute (x, y) = (1, 19) and m = 13 into y = mx + b.
Thus:
19 = (13)(1) + b
19 = 13 + b
b = 19 - 13
b = 6
Therefore, fixed charge = £6
✔️Substitute m = 13 and b = 6 into y = mx + b to represent the function given for the situation:
y = 13x + 6
Equation B is linear. A linear equation will not contain exponents.
