The question was incomplete. Below you will find the missing content.
The square root function f(x) is x <= 7
Options are :
A. 7 is subtracted from the x-term inside the radical.
B. The radical is multiplied by a negative number.
C. 7 is added to the radical term.
D. The x-term inside the radical has a negative coefficient.
Option D is correct, which is : The x-term inside the radical has a negative coefficient.
Given, the domain of the square root function f(x) is x <= 7
Consider the function y = √x.
The domain of this function is x ≥ 0 and the range is y ≥ 0.
The expression inside the radical must be greater than or equal to zero.
Now, if x ≤ 7
x - 7 ≤ 0
7 - x ≥ 0
And the function y = √(7-x) will have the domain x ≤ 7.
This implies that the x-term inside the radical has a negative coefficient.
Therefore, the statement that the x-term inside the radical has a negative coefficient must be true.
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Answer: $2.95
Step-by-step explanation:
Given: Probability of losing the $7 = ![\dfrac{20}{38}](https://tex.z-dn.net/?f=%5Cdfrac%7B20%7D%7B38%7D)
Probability of winning $14 = ![\dfrac{18}{38}](https://tex.z-dn.net/?f=%5Cdfrac%7B18%7D%7B38%7D)
Then, the expected value = (- $7) x ( Probability of losing the $7) + $14 x(Probability of winning $14)
= ![(-\$ 7)\times\dfrac{20}{38}+(\$14)\times\dfrac{18}{38}](https://tex.z-dn.net/?f=%28-%5C%24%207%29%5Ctimes%5Cdfrac%7B20%7D%7B38%7D%2B%28%5C%2414%29%5Ctimes%5Cdfrac%7B18%7D%7B38%7D)
= ![-\dfrac{70}{19}+\dfrac{126}{19}](https://tex.z-dn.net/?f=-%5Cdfrac%7B70%7D%7B19%7D%2B%5Cdfrac%7B126%7D%7B19%7D)
= ![\dfrac{56}{19}\times\approx\$2.95](https://tex.z-dn.net/?f=%5Cdfrac%7B56%7D%7B19%7D%5Ctimes%5Capprox%5C%242.95)
∴ If a doctor pays $7 that the outcome is an odd number, the doctor's
expected value is $2.95.
<span>The theorem of Pythagoras "c" is the sum of the squares of the catheus
Answer Felse</span>
11)
Yes
11/14 : multiply top and bottom by 2, it will be equal 22/28
11/14 = 22/28
12)
No
3/10 is not equal 4/11
3/10 ≠ 4/11
13)
Yes
6/8 : multiply top and bottom by 3, it will be equal 18/24
6/8 = 18/24