Specimens of two different types of twines were selected, and the fatigue limit (MPa) was
determined for each specimen, resulting in the
accompanying data.
Type 1: 350 350 350 358 370 370 370 371 371 372
372 384 391 391 392
Type 2: 350 354 359 363 365 368 369 371 373 374
376 380 383 388 392

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.

d is the correct answer

causes

fossil fuels burn

cities become more industrialized

human population grows worldwide

the answer is 12 as i may remember

: )