Show by substitution whether the number r is a solution of the corresponding quadratic equation.2x2 + 6x - 8 = 0; r = - 1
A. Yes
B. No
Answer: B
You might also like to view...
Find a value for a so that the equation models the data. y = x - a
A. 5 B. 3 C. -4 D. 4
Use factoring to find the zeros of the quadratic function. List the x-intercepts of the graph of the function.G(x) = x2 - 3x
A. x = 0, x = 3 B. x = 0, x = -3 C. x = -3 D. x = 3
The oxygen consumption of a bird embryo increases from the time the egg is laid through the time the chick hatches. In a typical galliform bird, the oxygen consumption (in milliliters per hour) can be approximated by
?
?
where t is the time (in days) since the egg was laid. (An egg will typically hatch at around 
.)
?
Find 
. Round your answer to two decimal places.
?
A. 
B. 
C. 
D. 
E. 
Write the expression as the sum or difference of multiples of logarithms.loga 8x6yz3
A. loga 8 + 6 loga x + loga y + 3 loga z B. 8 + loga y + loga z3 C. 18 loga 8xyz D. loga 8 - 6 loga x - loga y - 3 loga z