21-12-2018
Mathematics

contestada

The area of a triangle is 18r2 - 27r-35. The width is 3r - 7 inches. Which of the following expressions represents the length in inches?

A.9r - 7

B.6r -5

C. 6r + 5

D. 9r + 7

Relax

Respuesta :

choixongdong choixongdong

21-12-2018

Answer:

C. 6r + 5

Step-by-step explanation:

A = L x W

Given A = 18r^2 - 27r -35 and W = 3r - 7

18r^2 - 27r -35 = (3r - 7)(6r + 5)

so L = 6r + 5

Answer Link

Otras preguntas

Forma negativa e interrogativa de: He comes to school by bus. Thanks.

short dialogue between two friends on the subject of income tax class

There are decigrams in a gram. There are hectoliters in a liter. A 2-column table with 7 rows. Column 1 has entries kilo, hecto, deka, unit, deci, centi, milli.

the width to length of a rectangle is 2:3 the width is increased by 25 percent by what percent should the length be changed to kepp the area the same

Écris chaque phrase avec les lettres majuscules et minuscules. Suis l'exemple. Ne change rien sauf les majuscules et minuscules. Modèle: EST-CE QUE VOUS ALLEZ V

(Convert 1.22 into fraction.)

11. Ankit rest a ball of radius 'r'cm at R against a step PQ. If PQ = 10cm and QR =15cm.then the diameter is a) 16cm b) 32.5 cm c) 28cm d) 42 cm

What elements would you look at in a paper? Are some more important than others? What is the role of basic English writing skills versus demonstrating content k

Guy A plows field in 30 minutes and guy B plows same field in 60 minutes if plowing same field at same time together how many minutes will it take the both to g

What times 7 make 27 it's not possible