Find the vertex of the equation x2-4x+5=0

A model for consumers' response to advertising is given by the equation N (a) = 2000+500 ln (a) Where N (a) is the number of units sold, a is the amount spent on advertising, in thousands of dollars, & a≥1.

If John has 25 apples and Bill has 15 apples how many apples do they have in all.

Look at different shapes shaded what do they show about fractions ir different wholes

What does this equal? 6 (x+1) + 5=13-2+6x

Stacey filled her 1-2cup measuring cup seven times to have enough flour for a cake recipe. How much flour does the cake recipe call for?

The real number 8.09 belongs to which set of number A. natural numbers B. irrational numbers C. integers

8. 72 is what percent of 45?

Let f (x) = x^2 - 2x + 2 and g (x) = x - 3. find f (x) times g (x)

A survey found that 9 out of 100 people are left-handed. On the basis of this survey, how many people in a group of 8000 are likely to be left-handed? A. 900 B. 800 C. 720 D. 72

If 80% of an item is $200.00 what is the original cost