9th GRADE MATH QUIZ

Problem 1 :

Simplify √20 - √225 + √80

Solution

Problem 2 :

The perimeter of the rhombus is 20 cm. One of the diagonals is of length 8 cm. Find the length of the other diagonal.

Solution

Problem 3 :

Jerry and Silvia wanted to go from the southwest corner of a square field to the northeast corner. Jerry walked due east and then due north to reach the goal, but Silvia headed northeast and reached the goal walking in a straight line. How much shorter Silvia's trip was, compared to Jerry's trip?

Solution

Problem 4 :

Solve log10 (2x + 50)  =  3

Solution

Problem 5 :

A set has only one element is called ____________ set 

Solution

Problem 6 :

Which of the following statement represents this Venn diagram?

Solution

Problem 7: 

If (x+p) (x+q) = x2-5x-300, find the value of p² + q²

Solution

Problem 8 :

The point of concurrence of the angle bisector of a triangle is called the _____________ of the triangle.

Solution

Problem 9 :

The angles are supplementary and larger angle is twice the smaller angle.Find the angles.

Solution

Problem 10 :

Find the distance between the points

A (-15,-3) and B (7, 1)

Solution

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Answers

1.    3(2√5 - 5)  

2.    6 cm 

3.    42 m²  

4.    475 

5.    Singleton set  

6.    B - A 

7.    625  

8.    in center  

9.    60°, 120° 

10.   10√5  

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