lindseyneville68 lindseyneville68

04-05-2021
Mathematics

contestada

the width of a rectangle is 7 cm less than twice its length. its area is 30 square cm. find the dimensions

Respuesta :

MarvelDude MarvelDude

04-05-2021

Answer:

l = 6 cm

w = 5 cm

Step-by-step explanation:

l(2l - 7) = 30

2l^2 - 7l - 30

(2l + 5)(l - 6)

l = 6

2(6) - 7 = 5

Answer Link

Otras preguntas

What is the perimeter of the figure? 16 cm 46 cm 48 cm 110 cm

Many of water's emergent properties, such as its cohesion, its high specific heat, and its high heat of vaporization, result from the fact that water molecules

Is DNA individualistic, entirely?

what mass of Ca(OH)2 will react with 25.0 g of phosphoric acid to form the preservative calcium propionate according to the equation?

f $24,000 is invested in an account for 30 years. Calculate the total interest earned at the end of 30 years if the interest is: (a) 7% simple interest: $

Which vitamin is produced by the skin in response to ultraviolet light? (A) vitamin A (B) vitamin B (C) vitamin C (D) vitamin D

Which statement by the nurse indicates a need for further education related to a focused neurovascular assessment on Edith Jacobson? A.) The skin temperature ab

Fats have only saturated fatty acids and are ________ at room temperature due to ________ melting points. Oils have unsaturated fatty acids and are ________ at

I need to explain/show work. Help please I don’t understand this problem

What is the main duty of the Legislative branch?make laws