The brain volume centimeters to the power of three of 50 brains very from a low of 916 CM power of 3 to a high of 1,496 cm to a power of 3 use the range rule of thumb to estimate the standard deviation and compare the result to the exact standard deviation of $157.4 cm to the power of 3 assuming the estimate is accurate if it is within 15 cm to the power of three

i think c. but don't trust it.

step-by-step explanation:

54 km / hours

step-by-step explanation:

we need to convert seconds to hours

60 seconds = 1 minutes

60 minutes = 1hour

15 m         60 second   60 minutes

  * *         = 54000 meters/ hour

second     1 minute             1 hour

now we need to convert meters to km

1000 m = 1 km

54000 m       1 km

*   = 54 km / hours

hour               1000m

34.5 cm

step-by-step explanation:

generally for a circular segment of angle, θ° and radius r

arc length

= (θ/360) x circumference

= (θ/360) x 2πr

in our case, θ = 60°, π=3.142 and r = 33 cm

substitute into above formula

arc length

= (60/360) x 2(3.142)( 33) = 34.5 cm