22. El dueño de una casa quiere ampliar un armario rectangular que tiene un área de (x ^2+ 3x + 2) pies^2?
La longitud es (x + 2) pies. Una vez construido
el armario, el área será (x^2+ 8x + 15) pies?
con una longitud de (x + 3) pies.
a.
Halla las dimensiones del armario antes de
la construcción.

b.

Halla las dimensiones del armario después
de la construcción.

C En cuantos pies aumentarán la longitud y el ancho después de la construcción

518,400

step-by-step explanation:

the area is multiplying all the given measurements together.

40 * 18 * 30 * 24 = 518,400

the largest number of the four options is 1.8 x 10-2

you have it in scientific notation.

1.80 x 10-6   = 0.00000180

1.80 x 10-4   = 0.000180 (bigger, or "less small", than the former one)

so

1.8 x 10-2       = 0.0180. as you see. the "less small", or the biggest one of them all.

as you have negative exponent, it means you are dividing 1.8 by 100 (i.e. moving the dot towards left, two times).

if you had positive exponent for the scientific notation, power of tenths, you would be multiplying times 100 (moving the dot towards right) as below:

1.8 x (10)2 = 180

so. if you have negative exponent in scientific notation, move the dot toward left. if it is positive, toward right as many times the exponent tells you.

1.) 21

2.) 0.453

3.) 1.5

4.) 48

5.) $ 22

step-by-step explanation: