Question

4.Expand (x - 3 )( x - 7 ) 
plz answer fast plz
and those who has answer that is wrong muje option diye hai I have to choose from there let me share optio4.Expand (x - 3 )( x - 7 ) *

1 point

x² + 10x +21

x² - 10x -21

x² -10x +21

Orthocentre of an obtuse angled triangle is ________ *

1 point
Orthocentre of an obtuse angled triangle is ________ *

1 point

on the triangle

in the interior of a triangle

in the exterior of a triangle

3. The centroid divides the median in a ratio *

1 point

1:3

1:2

2:1

4.Expand (x - 3 )( x - 7 ) *

1 point

x² + 10x +21

x² - 10x -21

x² -10x +21

5.Find : ( 41 )³ using formula *

1 point

69821

62198

68921

6. For a pair of interior angles formed by parallel lines , if measure of one angle is 50°, the measure of another angle is _____ *

1 point

40°

130°

180°

7 Cube root of ( - 1331 ) *

1 point

-11

11

-19

8. Expand : (a - 1 ) ( a + 2) *

1 point

a² - 2a + 2

a² + 2a - 2

a² + a - 2

9. If the cube root of 729 is 9 , then cube root of 0.000729 is ____ *

1 point

0.9

0.09

0.009

10. Interior angles formed by two parallel lines and a transversal are ____ *

1 point

complementary

congruent

supplementary

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