1 |
The fourth proportional w of x : y::v : w is: |
xyv
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2 |
The third proportional of x2 and y2 is: |
x<sup>2</sup>y<sup>2</sup>
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3 |
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u = wk<sup>2</sup>
u = vk<sup>2</sup>
u = w<sup>2</sup>k
u = v<sup>2</sup>k
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4 |
If (img), then: |
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5 |
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u = v<sup>2</sup>
u = kv<sup>2</sup>
uv<sup>2 </sup>= k
uv<sup>2</sup> = 1
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6 |
Find x in proportion 4:x::5:15 |
12
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7 |
In continued proportional a:b = b:c, c in said to be ______ proportional to a and b: |
Third
Fourth
Means
None of these
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8 |
In continued proportion a:b = b:c, ac = b2, b is said to be _______ proportional between a and c: |
Third
Fourth
Means
None of these
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9 |
In a proportion a : b :: c : d, b and c are called: |
Means
Extremes
Fourth proportional
None of these
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10 |
In a proportion a:b:c:d, and d are called: |
Means
Extremes
Third proportional
None of these
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11 |
In a ratio x:y, y is called: |
Relation
Antecedent
Consequent
None of these
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12 |
In a ratio a:b, a is called: |
Relation
Antecedent
Consequent
None of these
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13 |
The Discriminant of ax2+bx+c=0 is: |
b<sup>2</sup>-4ac
b<sup>2+</sup>4ac
-b<sup>2+</sup>4ac
-b<sup>2</sup>-4ac
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14 |
The nature of the roots of equation ax2+bx+c=0, is determined by: |
Sum of the roots
Product of the roots
Synthetic division
Discriminant
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15 |
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-2
2
4
-4
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