Answer:
The percentage of the data between 580 and 620 is 68.26 %
Step-by-step explanation:
Given,
Mean, = 600,
Standard deviation, = 20,
Using the equation,
Z-score for the data 580 =
While, the z-score for the data 620 =
Using normal distribution table,
P(580 < z) = 0.1587
Also, P(620 > z) = 0.8413
Hence, the percent of the data is between 580 and 620 = P(620 > z) - P(580 < z)
= 0.8413 - 0.1587
= 0.6826
= 68.26 %
B. 16 cm2
C. 8 cm2
D. 6 cm2
E. 4 cm2
The answer is C) 8 cm squared.
That is because 64/8 = 8 cm squared. Hope this helps!!!
Answer:
C. 8 cm2
Step-by-step explanation:
If the big square is 64 cm2, then each side is 8 cm (8cm x 8cm = 64 cm2)
Each of the small squares then has both sides of half the side of the big one, then, each small square has 4cm x 4cm = 16 cm2
Ihen, each small triangle's area (such as ABH) is (b.h)/2, being the base and the height equal to the sides of the small square. Each small triangle is (4cm x 4cm)/2=8cm2