Jahniyamconald Jahniyamconald

15-11-2018
Mathematics

contestada

A farmer has a rectangular pen for her goats. The length of the pen can be represented by the expression 2x - 1. The width of the pen can be represented by the expression x + 4. Which of the following expressions represents the area of the farmer's rectangular pen?

Respuesta :

jimrgrant1 jimrgrant1

15-11-2018

area = 2x² + 7x - 4

the area (A ) of a rectangle = length × width

A = (2x - 1 )(x + 4 ) ← expand using FOIL

= 2x² + 8x - x - 4 = 2x² + 7x - 4

Answer Link

Otras preguntas

A uniform electric field of magnitude 108 kV/m is directed upward in a region of space. A uniform magnetic field of magnitude 0.80 T perpendicular to the electr

Identify the sentence that has correct subject-verb agreement. A. She said that neither fruit nor vegetables was very fresh at the market. B. She said that nei

1- Fill in the gaps with modal verbs . Use: Must/ can/ should/ have to/ will/ would - my husband _____ speak three languages - I _____ play the guitar when I w

Given that 25.0 mL of mercury has a mass of 340.0 g, calculate (a) the density of mercury and (b) the mass of 120.0 mL of mercury.

Explain why converting from meters to centimeters uses a different exponent than converans meters to millimeters.

a cell phone battery uses 1/3 of its charge in 3/8 of a day. How much charge will it use in one day?

I thought he would go to the hospital if he let her do that to him, so I warned him, “Bailey, if you let her do that to you, you’ll be sorry.” Who said this?

Rex runs one mile in 5 minutes, Stan runs one mile in 6 minutes, and Tim runs one mile in 7 minutes. There are 5280 feet in one mile. By how many feet does Tim

which of the following groups would NOT have been sold into slavery by Equianos african tribe? A. Adulterers B. Kidnappers C. Manufacturers D. Prisoners of war

Identify the following as elements or compounds: NH3, N2, S8, NO, CO, CO2, H2, SO2.