book Maths Puzzle Numerical Ability

Is there a difference between linear algebra and vector algebra?

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book Other Question

iF PARALLEL LINES ARE CUT BY A TRANSVERSAL, WHAT COULD BE THE MEASURE OF TWO OF THE ALTERNATE INTERIOR ANGLES?

1. 50 AND 50 2. 50 AND 130 3. 75 AND 75 4. 75 AND 150

A. 1 & 2
B. 2 & 3
C. 3 & 4
D. 1 & 3 I need help calculating the area between the y-axis and y = x squared, from y = 4 and y = 9. I beleive my graph would show a parabola, however I am not sure. Would you please hel