Answer:
C and E
Step-by-step explanation:
We are given that
A.
Hence, it is not in proportional relationship with (0.2,0.3)
B.(2.7,4.3)
Hence, it is not in proportional relationship with (0.2,0.3).
C.(3.2,4.8)
Hence, the ordered pair (3.2,4.8) are in a proportional relationship with (0.2,0.3).
D.(3.5,5.3)
Hence, the ordered pair (3.5,5.3) are not in a proportional relationship with (0.2,0.3).
E.(5.2,7.8)
Hence, the ordered pair (5.2,7.8) are in a proportional relationship with (0.2,0.3).
Answer:
Option D is correct.
The equation with roots 3 plus or minus square root 2 is x² - 6x + 7
Step-by-step explanation:
The roots of the unknown equation are
3 ± √2, that is, (3 + √2) and (3 - √2)
The equation can then be reconstructed by writing these roots as the solutions of the quadratic equation
x = (3 + √2) or x = (3 - √2)
The equation is this
[x - (3 + √2)] × [x - (3 - √2)]
(x - 3 - √2) × (x - 3 + √2)
x(x - 3 + √2) - 3(x - 3 + √2) - √2(x - 3 + √2)
= x² - 3x + x√2 - 3x + 9 - 3√2 - x√2 + 3√2 - 2
Collecting like terms
= x² - 3x - 3x + x√2 - x√2 - 3√2 + 3√2 + 9 - 2
= x² - 6x + 7
Hope this Helps!!!
Answer:
2.67 bushels of corn
Step-by-step explanation:
We can see it in the picture.
Answer:
$28.50
Step-by-step explanation:
21 ÷ 14 = 1.5
19 · 1.5 = 28.50
Hope this helps!!
Idkfjdjiwkwhdjajajasjjaikajshsiskjdhdjdjsjjsjsjsjsjss
