Answer:
its 2. 20cm³ or 3. 32cm³
Step-by-step explanation:
I'm dont know if im right because the picture is asking for something different then the question
Answer:
<h3>d. The roots are real, rational and equal.</h3>
Step-by-step explanation:
The discriminant of a quadratic equation is expressed using the equation:
D = b²-4ac. It talks about the nature of the roots of a quadratic equation.
If D>0, then the roots is real and unequal/distinct
If D<0 the roots are unreal and imaginary
If D = 0, the roots are real and equal (one real root)
According to this question, since the root given is a real value and also one value, then the the roots are real, rational and equal. Note that the root is rational since we can write it as a ratio of two integers e.g 34 = 34/1. 34 and 1 are integers
Answer:
87.471
Step-by-step explanation:
Given that scores for test, quiz, final exam , average quizzes.
There are weight given as 55% for quiz, 30% for homework, 5% Final Exam 10% Tests:
Now to calculate the student final grade, we can use weighted average method.
Final exam average
67
90
44
29
100
100
100
75.71428571
Use the averages to find:
Score Weight Score*weight
Quizzes 90 55% 49.5
Homework 85 30% 25.5
Tests 75.71 10% 7.571
final exam 98 5% 4.9
total 87.471
Hence answer is 87.471
