Mean is 0.43 kg.
0.43+0.1+0.1= 0.45
0.45 is two standard deviation above.
All that are below mean is 50%,
Two standard deviation above is 95%/2=47.5%
50%+47.5% =97.7% are balls that are less than 0.45 kg.
100%-97.7%=2.5% balls that are more than 0.45 kg
2.3%=0.025
800*0.025 = 20 <span>soccer balls weigh more than 0.45 kg
Answer is b) 20.</span>
Answer:
Step-by-step explanation:
(x)7 steak(dependent variable) = $44.10
(y)11 steak(independant variable)=$69.30
y=kx
11/7=1.57142857143
reduce that to 3 decimal spaces
y=1.57x
y=1.57(7)
11=1.57(7)
or
cross multiply
7 × $69.30 and 11 × $44.10
and get 485.1 for both
Angle is half the arc
46/2= 23 C
<span><span>A vehicle travels at a rate of 65 m/h, How long does it take the vehicle to travel at 25 miles?
Apply the "distance formula":
d = rt
25 = 65t
25/65 = t
5/13 hour = t
or
0.385 hour = t
or
23.08 minutes = t
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