BvbkrockMegsx BvbkrockMegsx

29-04-2016
Mathematics

contestada

A rectangle has an area of 10x^2-29x-21 square units. Which of the following could represent the primeter of the rectangle in terms of x?
a. 2x-7
b. 5x+3
c. 7x-4
d. 14x-8

Respuesta :

apologiabiology apologiabiology

29-04-2016

area=LW
10x^2-29x-21=area
factor and those are the lengh and width
(2x-7)(5x+3)
perimiter=2(L+W)
P=2(2x-7+5x+3)
P=2(7x-4)
P=14x-8

answer is D

Answer Link

Otras preguntas

Analysis: 1. What is a density-dependent limiting factor? 2. When do density-dependent factors operate most strongly? 3. List four density-dependent limiting fa

y+3=-3(×+2) Point slope form equation when graphed

20 million children under the age of 5 are overweight globally. A. True B. False

The point-slope form of the equation of a line that passes through points (8, 4) and (0, 2) is y - 4 =1/4(x-8). What is the slope - intercept form of the equati

Assign test_stat_72 to the value of the test statistic for the years 1971 to 1973 using the states in death_penalty_murder_rates. As before, the test statistic

A ______________ involves random assignment of participants and manipulation of the causal variable, while a ______________ may have manipulation of the causal

Your soccer team has won 9 games out of 12 games. You lost 3 out of 12 games. What is the relative frequency of winning a game.

On February 15, 2013, Asteroid 2012 DA14 passed within 17,200 miles [mi] of the surface of the Earth at a relative speed of 7.8 kilometers per second [km/s ].

To what ecosystem are coral reefs compared? Why is it important to conserve biodiversity

In a certain small town, 3 professional burglars are currently out of prison: Alex, Becky, and Carl. Alex has in the past committed 55% of the burglaries commit