Answer:
X = 3
Step-by-step explanation:
Answer:
Noor was right because the answer is 324
Step-by-step explanation:
the BODMA rule of solving the expression the bracket first before applying the index or before multiplying.
The correct way of solving the expression is
18 x 4x 4 + (9-3)(9-3)
= 18×16 + 6×6
= 288 + 36
= 324
But
Roopa solved it this way instead
18 x 4x 4 + (9×9-3×3)
= 18×16 + (81-9)
= 288 + 72
= 360
So, Noor was right while Roopa was wrong
Answer: Choice B
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Explanation:
The given matrix is
![\left[\begin{array}{cc|c}1&5&11\\4&-6&-3\end{array}\right]](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bcc%7Cc%7D1%265%2611%5C%5C4%26-6%26-3%5Cend%7Barray%7D%5Cright%5D)
The numbers to the right of the vertical bar represent the values on the right hand side of each equation in the final answer.
The numbers to the left of the bar represent the x and y coefficients of the equations. The first number of any given row is the x coefficient. The second number is the y coefficient.
For instance, the first row has 
to indicate the x coefficient is 1, and the y coefficient is 5. We end up with 1x+5y or simply x+5y. Putting everything together, the first equation would be x+5y = 11
Through similar steps, the second equation is 4x-6y = -3
Answer:
Option C. failing to reject a false null hypothesis
Step-by-step explanation:
Type II error states that Probability of accepting null hypothesis given the fact that null hypothesis is false.
This is considered to be the most important error.
So, from the option given to us option C matches that failing to reject a false null hypothesis.
It will be 90 feet considering the water triangle as shown as the figure
