106.25
the answer would be 106.25 because i was taught to divide 465 by 4 and the subtract 10
Answer:
104.73cm²
Step-by-step explanation:
AREA OF SEMI CIRCLE
9cm-4cm = 5cm
5cm is the radius of the semi-circle
(πr²)/2 =
25π/2 = 12.5π
AREA OF SQUARE
16cm*9cm = 144cm²
AREA OF THE FIGURE SHOWN
144cm² - 12.5cmπ²
144cm² - 39.27cm² = 104.73cm²
Answer:
0.91517
Step-by-step explanation:
Given that SAT scores (out of 1600) are distributed normally with a mean of 1100 and a standard deviation of 200. Suppose a school council awards a certificate of excellence to all students who score at least 1350 on the SAT, and suppose we pick one of the recognized students at random.
Let A - the event passing in SAT with atleast 1500
B - getting award i.e getting atleast 1350
Required probability = P(B/A)
= P(X>1500)/P(X>1350)
X is N (1100, 200)
Corresponding Z score = 
Answer:
Step-by-step explanation:
High in the Rocky Mountains, a biology research team has drained a lake to get rid of all fish. After the lake was refilled, they stocked it with an endangered species of Greenback trout. Of the 2000 Greenback trout put into the lake 400 were tagged for later study. An electroshock method is used on individual fish to get a study sample. However, this method is hard on the fish. The research team wants to know the smallest number of fish that must be electroshocked to be at least 50% sure of getting a sample of two or more tagged trout.
we have to find out smallest number fish (n) that must be electroshoked to be atleast 50% &
species of Greenback trout of the 2000 greenback trout put into the lake 400
