SSLC MATHS online quiz 9(EM)

(x+1)² = 2(x-3) standerd form of this quadratic equation

• x² + 2x + 1 = 0

• x² + 4x + 7 = 0

• x² + 7 = 0

• x² + 5 = 0

The distance between the points (-5,7) and (-1,3) is

• 4 $\sqrt{2}$

• 2 $\sqrt{8}$

• $\sqrt{8}$

• 2 $\sqrt{32}$

Total surface area of a solid sphere is

• $3\pi r^2$

• $4\pi r^2$

• $2\pi r^2$

• $\pi r^2$

x, 13, y, 3 , If this is an AP then the values of x and y are

• (8,18)

• (15,5)

• (18,8)

• (16,6)

The value of  $\tan^2\ 45^0$  is

• 2

• 1

•  $\frac{1}{\sqrt{2}}$  

• 1/2

If in two linear equations  $\frac{a_1}{a_2}=\frac{b_1}{b_2}=\frac{c_1}{c_2}$  then these two lines are mutually

• coincides

• intersects

• parallel

• above all

The radie of two concentric circles are 6cm and 12cm , then the ratio of their circumferences

• 2:1

• 1:4

• 4:1

• 1:2

Among the following similar figurs are

• equilatral triangles

• right angled triangle

• rectangles

• parallelograms

x² - 3x - 10 = 0 Zeroes of this equation are

• (5, -2)

• (-5, 2)

• (-2, 3)

• (-2,-1)

LCM of 18 and 45 is

• 81

• 90

• 9

• 45