Answer:
4
Step-by-step explanation:
140 because 2 is below 5 so its 140
The base is 6.
In order to find this, we can set the legs equal to each other since legs have the same length in an isosceles triangle.
x + 1 = -x + 7
2x + 1 = 7
2x = 6
x = 3
Now that we have the value for x, we can plug into the equation to get the value for the base.
3x - 3 = base
3(3) - 3 = base
9 - 3 = base
6 = base
Answer: B. 461 acres
Step-by-step explanation:
Given : In an agricultural study, the average amount of corn yield is normally distributed with a mean of 185.2 bushels of corn per acre, with a standard deviation of 23.5 bushels of corn.
i.e.
Let x denotes the amount of corn yield.
Now, the probability that the amount of corn yield is more than 190 bushels of corn per acre.
[Formula : ]
[∵ P(Z>z)=1-P(Z<z)]
[using z-value calculator or table]
Now, If a study included 1100 acres then the expected number to yield more than 190 bushels of corn per acre :-
hence, the correct answer is B. 461 acres .
-------------------------------------------------------------------
Formula:
-------------------------------------------------------------------
Area of a triangle = 1/2 a b sin C
-------------------------------------------------------------------
Find Area:
-------------------------------------------------------------------
Area = 1/2 (8) (9) sin (47)
Area = 26.33 yd²
-------------------------------------------------------------------
Answer: 26.33 yd²
-------------------------------------------------------------------