Alexi wants to hang a mirror in his boat and put a frame around it. The mirror and frame must have an area at 19.25 square feet.

Question

2 years ago

9

Alexi wants to hang a mirror in his boat and put a frame around it. The mirror and frame must have an area at 19.25 square feet.

The mirror is 3 feet wide and 5 feet long. Which quadratic equation can be used to determine the thickness of the frame, x.
1. 2x^2+8x-19.25 = 0
2. 3x^2+5x-19.25 = 0
3. 4x^2+16x-4.25 = 0
4. 4x^2+16x+15 = 0

Mathematics

2 answers:

Zina [86] · Answer 1 · 2022-08-07T16:52:55+03:00

Zina [86]2 years ago

7 0

Given:
area of mirror and frame : 19.25 square ft.
dimensions of the mirror: length = 5ft ; width = 3ft

area of mirror = 5 ft * 3 ft = 15 square feet.
area of frame = 19.25 square feet - 15 square feet = 4.25 square feet.

I think the correct answer is 3.) 4x² + 16x - 4.25

In-s [12.5K] · Answer 2 · 2022-08-07T18:48:14+03:00

In-s [12.5K]2 years ago

7 0

Answer:

The answer is C

4x^2+16x-4.25=0

I took the test

Step-by-step explanation: