The LCM of x² + 2x -15 and x²-9 is:

• (x + 5) (x +3)

• (x + 5) (x -3)(x+3)

• (x-1) (x-14)

• (x+7) (x - 5)

The radius of the base of the cone is 7cm, and the vertical height is 15cm then The volume of the cone is

• 2310 cm³

• 1440 cm³

• 660 cm³

• 770 cm³

Tags

CCSS.8.G.C.9

CCSS.HSG.GMD.A.3

Three sides of a triangle are 6cm, 8cm, and 10cm. Then the area of triangle is

• 24cm²

• 48cm²

• 18 cm²

• 576 cm²

Tags

CCSS.6.G.A.1

A card is drawn randomly from the pack of 52 playing cards. Find the probability of getting the card is diamond or jack

• 8/13

• 4/13

• 17/52

• 7/13

Tags

CCSS.HSS.CP.B.7

A man observes the top of a tower 40m high and finds the elevation of 30⁰ . Find the distance between the man and the foot of the tower.

• 40m

• 23.09m

• 69.28m

• 20m

Tags

CCSS.HSG.SRT.C.8

The product of two consecutive even numbers is 168. Find the numbers.

• 16, 18

• 42 and 4

• 12 and 14

• none of the above

The curved surface area of the cylinder whose radius of the base is 10 cm and height is 14cm .

• 1466.67 cm²

• 2112 cm²

• 880 cm²

• 4400cm²

A coin is tossed two times. find the probability of getting head two times

• 1/2

• 1/4

• 3/4

• 1/8

Factorize: x³+8

• (x+2) (x+2) (x+2)

• (x+2) (x² +2x +4)

• (x-2) (x+2) (x-2)

• (x+2) (x² - 2x +4)

Tags

CCSS.HSA.APR.C.4

In probability, the set of all possible outcomes is called

....................