Answer:
(d) 0.8736
Step-by-step explanation:
Unless you have a table of the normal distribution available, this is a calculator problem. Your calculator, or any spreadsheet, can tell you the probability is ...
P(-1.23 ≤ z ≤ 2.12) ≈ 0.8736
6 feet * 7 feet = 42 feet²
18 feet * 21 feet = 378 feet²
42 feet² was painted for $52
1 feet² will be painted for $52/42
378 feet² will then be painted for: ($52/42) * 378
= $468
Hence 18 feet by 21 feet will be painted for $468
Hope this helps.
Answer:
≥-17
Step-by-step explanation:
Answer:
b = 60.26
Step-by-step explanation:
To comfortably solve for b, we employ the SINE RULE
SINE RULE:
sinA/a = sinB/b = sinC/c
Where a, b and c are the sides (length) of the triangle
Where A, B , and C are the ANGLES of the triangle.
Comparing angles to resolve for b, we have:
sinA/ a = sinB/b
sin46.7 / 44 = sin85.3 / b
Cross Multiply to solve for b, we have:
b * sin46.7 = 44 * sin85.3
b * 0.728 = 44 * 0.997
b = 43.868 / 0.728
b = 60.258
b = 60.26