desstinee863
09.03.2021 •
Mathematics
HALP
MATH
Select the correct answer. Solve the system of equations. y= 4x + 5 y = x^2 + 12x+ 20
O A. (3,17) and (5,-15)
O B. (-3,-15) and (-5,-7)
O C. (-3,-17) and (-5,-25)
O D. (-3,-7) and (-5,-15)
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Ответ:
trhgytrhgytrfgyrgttht
tygtfrytvfgtftghujgmbdxv
Step-by-step explanation:
Ответ:
Step-by-step explanation:
Using the identity (x + 0.5)^2 = x(x + 1) + 0.25:
4.5^2 = 4 * 5 + 0.25 = 20.25
Also 4.45^2 = 19.8
so 4.47^2 will be closer to 20 than 4.5^2.