TavcateldFlo TavcateldFlo

12-01-2017
Mathematics

contestada

Solve the equation for c.

c(c + 3) - c(c - 4) = 9c - 16

1.6

2.6

2

8

Respuesta :

doodle10 doodle10

14-01-2017

Answer = 8

Because:

c(c + 3) - c(c-4) = 9c - 16
c^2 + 3c - c^2 + 4c = 9c - 16
3c + 4c = 9c - 16
7c = 9c - 16
7c + 16 = 9c
16 = 2c
8 = c

Answer Link

Otras preguntas

Jim found four pieces of wire in his tool drawer. Here are their lengths 5, 9.71, 14.1, 15.68 what is the total lenghts?

what is science in societal perspective

The graph of the invertible function h is shown on the grid below. What is the value of h^-1 (-1)?

Which of the following results is highly meets for the query (maps) English (us) A result that contains toafmaos for European countries A dictionary page that b

what is point of view?

To fuel its waste-to-energy" program, the country of Sweden has begun importing garbage from other countries, which it uses to power a quarter of a million hous

Which of the following statements about alcohols is false? A. Ethanol is soluble in water. B. Ethanol has a higher boiling point than ethane. C. Ethanol produce

Fossil fuels can be burned to power vehicles like cars, but they can also be used to: A. Jump start nuclear fission B. Power solar cells C. Generate electricity

In the triangle above, the cosine of a is 0.8.What is sine of b?

210 oranges, 252 apples and 294 pears are equally packed in cartons so that no fruit is left. What is the biggest possible number of cartons needed? i also want