4) Se a = 7, b = - 3 e c = 2, a equação do 2º grau que corresponde a esses coeficientes é: 2x (x+1) + 5x² - 5x = - 2 2x² + 7x - 5 = 0 3x² - 7 = 0 4 (x² + 7) - 3x - 7 = 0 Nenhuma das alternativas acima.

What is 4/6+1/3 can y'all tell me this is for homework and I can't seem too figure it out

At Aliyah's Printing Company LLC there are two kinds of printing presses: Model A which can print 40 books per day and Model B which can print 45 books per day.

Can a common denominator of mixed numbers be 20?

Allison has 5 times as many baseball cards as football cards. In all, she has 120 baseball and football cards. How many baseball cards does allison have?

6 out of every 20 people in the U. S. who were over the age of 25 had completed four years or more of college. If a community has 1860 residents over the age of 25 with four or more years of college, how many residents over the age of 25 live there?

The guidelines for prescribing a particular drug specify a dose of 300 mg per kilogram of body weight per day. How should you find how much of the drug should be given to a 30-kg child every 8 hours?

Marcos is cutting ribbons for a craft project. each ribbon needs to be 3/4 yards long. if each piece is always within plus or minus 1/16 yards how long are the shortest and longest pies of ribbon ... i don't get it

Find The diagram is not to scale. m 96degree 118degree 115degree 104degree a. 107° b. 117° c. 63° d. 73°

How many pumpkin plants would be in 2 rows

Which of the following is equivalent to the expression below (-3+5) + (m-11