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Math
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Algebra
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Age 13+
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level: GRADE 9
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English
Author's Instructions
Mathalas 2022
Grade 9
No.
Questions (Easy, 20 seconds, 1 point)
Answer
1
What value of the constant c will make x2+16x+c a perfect square?
16
2
If base angle of an isosceles triangle is 40°, what is the vertex angle?
100°
3
The ratio of two complementary angles is 2:3. Find the bigger angle
54°
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Math
-
Algebra
-
Age 13+
-
level: GRADE 9
-
English
Author's Instructions
Mathalas 2022
Grade 9
No.
Questions (Easy, 20 seconds, 1 point)
Answer
1
What value of the constant c will make x2+16x+c a perfect square?
16
2
If base angle of an isosceles triangle is 40°, what is the vertex angle?
100°
3
The ratio of two complementary angles is 2:3. Find the bigger angle
54°