Mathematics: Gayy no need to show work two questions

Gayy no need to show work two questions

keke6361

11.01.2022

$\Delta=(-1)^2-4*1*(-72)=1+288=289$
$\sqrt{\Delta}=17$
$x_1=\frac{1-17}{2}=-8$
$x_2=\frac{1+17}{2}=9$

2. f(x)=x^2+12x+20

$\Delta=144-80=64$
$\sqrt{\Delta}=8$
$x_1=\frac{-12-8}{2}=-10$
$x_2=\frac{-12+8}{2}=-2$

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mia7955

11.02.2021

well its a whole

diameter is all the way across so take 8.5 and times it by 3.14 which is 26.69 that is your volume but if you want a more mathematical answer then

1 inch = 2.54 cm

16 oz = 1 lb

28.3 g = 1 oz

volume of a sphere = 4/3pi(r)^3

Step-by-step explanation:

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