290-10=280

280 is one standard deviation below.
All that are above mean is 50%.
One standard deviation below is 34%.
50%+34%=84% all of these bags weigh more than 280 g.
So,
100%-84%=16% should be bags that are less than 280 g.

Answer is b) 16 %.

5 0

2 years ago

Find parametric equations for the tangent line at the point (cos(3pi/6),sin(3pi/6), (3pi/6))

r-ruslan [8.4K]

$r(t)=(\cos{t},\sin{t},t)
\\r'(t)=(-\sin{t},\cos{t},1)
\\t= \frac{3\pi}{6} = \frac{\pi}{2}
\\ r'(t)=(-\sin{\frac{\pi}{2}},\cos{\frac{\pi}{2}},1)
\\ r'(t)=(-1,0,1)
\\
\\x=0+t(-1)=-t
\\y=1+t\times 0=1
\\z= \frac{\pi}{2} +t$

5 0

3 years ago

PLZ HELP!! <br><br> describe a real world situation when opposite qualities combine to make zero.

NeTakaya

Is there options just wondering

3 0

2 years ago

When planning his crops, Farmer Joe knows that his 5 acres can support corn and strawberries. He wants to make $5,500 from his c

qaws [65]

This can be solved using the system of equations:

5500 = 1000c + 1500s
5 = c + s

As the first equation can have different combinations, it is the second equation that defines just how much acres or corn or strawberries(or mathematically, it defines the values of c or s in the first equation) there are. Therefore, the equation " 5 = c + s" is the constraint.

3 0

2 years ago