Answer:
1) 144 ft
2) 292.5 ft
Step-by-step explanation:
1) SA= lw+ 4(1/2( <em>l </em>)h)
SA=6*6+ 4(1/2( 6 )9)
SA=36+ 4(1/2( 6 )9)
SA=36+ 4( 3*9 )
SA=36+ 4( 27 )
SA=36+ 144
2) SA= 1/2( / )h+ 3(1/2( <em>l </em>)h)
SA=1/2( 15 )13+ 3(1/2( 10 )13)
SA=7.5*13+ 3 ( 5*13 )
SA=7.5*13+ 3 ( 65 )
SA= 97.5+ 3 ( 65 )
SA=97.5+ 195
SA= 292.5
Represent the thickness of the frame by x. Framing the mirror will increase both its length and width by 2x. The area of the mirror with the frame is the product of the length and width which can mathematically be expressed as,
A = (3 + 2x)(2 +2x) = 8
The equation above can be simplified into 4x^2 + 10x -2 = 0. This equation can still be further simplified by dividing it by 2. However, it will give an answer which is not found on the choices. Thus, the answer is the third choice.
It would be 300 text message for the plan to cost the same each month
Mark as brainly
8x - 3y = 24
y-intercept ⇒ x = 0
subtitute
8 · 0 - 3y = 24
-3y = 24 |divide both sides by (-3)
y = -8
