Showing Mcqs of math -- (543)

Solve: - 3/2 * x + 4/3 * y = 8 3/2 * x + 1/3 * y = 2

x = 3 Y = 4

x = 0, y = 6

x = 6 y = 0

x = 1, y = 1

Solve: 7x + 11y = 1 8x + 13y = 2

x = - 5 y = 3

x = - 7 y = 5

x = - 3 y = 2

none

The conditions for the polynomial equation a * x ^ 2 + bx + c = 0 to be quadratic is

a > 0

a < 0

a≠0,

a≠0, b ne0

A real number is said to be algebraic if it satisfies a polynomial equation with integral coefficients. Which of the following numbers is not algebraic?

2/3

sqrt(2)

0

π

The minimum value of x ^ 2 + 8x + 17 is

-1

1

0

17

Solve (7x + 1)/(7x + 5) = (3x + 1)/(5x + 1)

1, -2/7

-1 , 2/7

-1 , -2/7

1 , 2/7

 3 chairs and 2 tables cost Rs. 700, while 5 chairs and 3 tables cost Rs. 1100. What is the cost of 2 chairs and 2 tables?

R .393

RS.493

RS.600

RS.625

One root of the quadratic equation x ^ 2 - 5x + 6 = 0 is 3. Find the other root

2

-2

1

-1

 x = 3 is solution of the question 3x ^ 2 + (k - 1) * x + 9 = 0 then k has value

13

-13

11

-11

How many seconds longer does it take to drive 1 mile at 40 miles per hour than at 60 miles per hour?

15

30

40

60