WILL GIVE BRAINLIEST 36 POINTS Please show the steps.
Which linear system of equations does the matrix represent M=[87|4] [20|5]
A. 8x+7y+4z=0
2x+0y+5z=0
B. 8x+7y=4
2x+0y=5
C. 8x-7y-4z=0
2x+0y+5zz=0
D. 8x+7y=-4
2x+0y=-5

Given: m∠ adb = m∠cdb ad ≅ dc prove: m∠ bac = m∠bca lol

Neoli is a nurse who works each day from 8: 00 am to 4: 00 pm at the blood collection centre. she takes 45 minutes for her lunch break. on average, it takes neoli 15 minutes to collect each sample and record the patient's details. on average, how many patients can neoli see each day?

Estimate the area under the curve f(x) = 16 - x^2 from x = 0 to x = 3 by using three inscribed (under the curve) rectangles. answer to the nearest integer.