Answer:
12.
Step-by-step explanation:
We have been given format of different numbers. We are asked to find the missing value for our given format.
Taking square root of 9 and 16 we will get,
Similarly, we can see that by taking the square root of all the on the left side of equation and adding them we get right side of equation.
Upon taking square root of 25 and 49 we will get,
Therefore, the missing number of our given sequence is 12.
I can’t really see it get a clear picture
ANSWER
The points (1,2) and (7,2) lie on the given curve.
EXPLANATION
The given parametric equations are:
and
We make t the subject in the first equation to obtain:
We substitute this into the second equation to get:
When x=1,
When x=2
When x=7,
Therefore the points (1,2) and (7,2) lie on the given curve.
Answer:
4% of students tried both questions.
Step-by-step explanation:
Given:
Total students taking the exam = 50
Number of students who answered the first question = 16
Number of students who answered the second question = 33
Number of students who din't answer any = 3
To find the percent of students who tried both questions.
Solution:
Total students who answered at least one question =
Number of students who tried both questions can be given as :
⇒
⇒
⇒
Percentage of students who tried both questions can be given as:
⇒
⇒
⇒
Thus, 4% of students tried both questions.