Find the discriminant and the number of real roots for this equation. x2 + 2x + 8 = 0

a. 32; two real roots

b.-28; one real root

c. 32; one real root

d.-28; no real roots

163.89 to the hundreds place

Claire thinks that if she draws a parallelogram with 2 congruent sides, it must be a rhombus. Jacob thinks that she would need to draw a parallelogram with at least 3 congruent sides before she could be sure it was a rhombus.

A species' population dropped from 2000 in the year 2000 to 1200in the year 2011. Find the percent decrease in its population

Burt's burger barn sold 495 hamburgers today. The number sold with cheese was half the number sold without cheese. How many of each kind were sold?

What do you need to do before you can add the fraction

A construction compony purchased 24 boxes of nails. Each box cost $87. How much did the nails cost the construction company?

What would 0.9 go with? 2/25 23/50 14/20 90%

What is the area of rectangle with a length of 6 inches and a height of 1/12 inch

A school puts on a play. the play costs $1,200 in expenses. the students charge $4.00 for tickets. there will be one performance of the play in an auditorium that seats 500 people.

Consider the function: y=f (x) = (1/2) ^x the values of f (-7) is: a) 0.0078 b) 0.78 c) 64 d) 128 the value of f (5) rounded to the nearest ten thousand is: a) 0.0309 b) 0.0312 c) 0.0313 d) 32