I will give u brainliest! pls help

it should be the first one is using mis-calibrated equipment, and then

air pressure and temperature or humidity. next  human error then. can then high quilty equipment and can not.

i think it because equal matrices have equal dimensions, only square matrices can be symmetric. for all indices and . every square diagonal matrix is symmetric, since all off-diagonal elements are zero. in linear algebra, a real symmetric matrix represents a self-adjoint operator over a real inner product space.

v 154.9= 0.9 length length s little over 154.9cm