Keith determines the zeros of the function fx to be 6 and 5

Keith determines the zeros of the function f(x) to be -6 and 5. What could be Keith\'s function? A. f(x)=(x + 5)(x + 6) B f(x) m (x + 5)(x-6) C. f(x) = (x - 5) (x + 6) D. f(x) = (x -5)(x-6) 3. Solve the equation 6^2 - 2x - 3 - 0 and express the answer in simplest radical form. 4. What are the values of x in the equation x^2 + 4x - 1 = 0? In physics class. Esther learned that force due to gravity can be determined by using the formula F = Gm_1m_2/r^2 Solve for r in terms of F, G. m_1, and m_2. To watch a varsity basketball game, spectators must buy a tickct at the door. The cost of an adult ticket is $.1.00 and the cost of a student tickct is $1.30. If the number of adult tickets sold is represented by a and student tickets sold by. which expression represents the amount of money collected at the door from the ticket sales?

Solution

1)zeros x= -6 and x =5

f(x ) = (x+6)(x-5)

Option c

3) 6x^2 -2x -3 =0

similar to quadraticecfunction : ax^2 +bx +c =0

x = ( -b +/- sqrt(b^2 -4ac) /2a

= ( 2 +/- sqrt(4 +3*6*4)/12

= 1/6 + / - sqrt(19)/6

4) x^2 +4x -1 =0

similar to quadraticecfunction : ax^2 +bx +c =0

formula for roots : x = ( -b +/- sqrt(b^2 -4ac) /2a

x = ( -4 + /-sqrt( 16 +4) )/2

= ( -4 +/- sqrt20 )/2

= -2 +/- sqrt5

option c

9. sqrt32

now 32 = 2*2*2*2*2 = 4*4*2

So, sqrt(32) = sqrt(4*4*2) = 2*2*sqrt2 = 4sqrt(2)

Option b