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WorksheetsGrade 11-12 Elimination
Total questions: 15
Worksheet time: 30mins
Solve x2 – 49 = 0 by extracting the roots.
5 and -5
6 and -6
7 and -7
8 and -8
What constant should be added to both sides of the equation x2 + 4x – 21 = 0, so that it can be solved by completing the square?
2
4
6
9
Simplify √28
7√2
7√4
4√7
2√7
Rationalize the denominator of the expression
x−88x and simplify.
x−88x
x−864x2
x−88xx+8
x−88xx−8
3. Which of the following is a quadratic equation written in standard form?
3m + 8 = 15
x2 - 5x + 10 = 0
x2 + 19 = -3x
(x – 4)2 + 8 = 0
5. What must be added to t2+20t+? to make it a perfect square trinomial?
100
400
40
20
Which of the following represents the distance d between the two points (x1, y1) and (x2, y2) ?
d=(x2+x1)2+(y2+y1)2
d=(x2+x1)2−(y2+y1)2
d=(x2−x1)2+(y2−y1)2
d=(x2−x1)2−(y2−y1)2
The 10th term of an arithmetic sequence is 22 with a common difference of -2. Find a1.
34
36
40
42
How many terms are in an arithmetic sequence whose first term is -3, common difference is 2, and last term is 23?
12
13
14
15
Two fair coins are tossed. The probability of getting two heads is
1
3
41
61
What is the distance between N(4,7) and M(11,7)?
6 units
7 units
8 units
9 units
What is the radius of the circle given the equation, x2+y2=92 ?
9
18
81
90
The product of a positive integer n and all the positive integers less than it is ___________.
powers of n
multiples of n
n-factors
n factorial
What is the sum of ? 47−37+7
7
2 7
7 7
8 7
The perimeter of a parallelogram is 54. The ratio of the lengths of the sides is 2:7. What are the lengths of the sides?
4 and 14
6 and 21
8 and 28
24 and 30
