Answer:
11x + 6x^2 -57
Step-by-step explanation:
(7x2 + 5)(x - 3) + 2x (3x - 4)
1. Multiply 7x2
(14 + 5)(x - 3) + 2x (3x - 4)
2. Add 14+5
(19)(x - 3) + 2x (3x - 4)
3. Distribute 2x to 3x-4
(19)(x - 3) + 6x^2 - 8x
4. Distribute 19 to x-3
19x - 57 + 6x^2 - 8x
5. Simplify.
11x + 6x^2 -57
Answer:right I was just look for the same thing when I tried to work it
Step-by-step explanation:
There are 60 seconds in one minute, and 60/5=12, so the race car would travel 100 feet every 5 seconds 12 times in one minute. You can simply multiply 100 by 12 to get your answer.
100x12=1200
The race car travels 1,200 feet in one minute.
Answer:
The shortest length of wire that can be used is 29.47 ft.
Step-by-step explanation:
To solve this problem we can follow the following steps:
1) We have the dimensions of the floor of the room. The shortest distance between its opposite corners is the diagonal. We calculate the diagonal using the Pythagorean theorem.
2) Since the speaker is on the ceiling, and the amplifier is on the floor, then 7 more feet of wire is needed to reach the speaker. <em>Observe the attached image</em>
3) The final distance (d) is:
Answer:
1
1
2
4
Step-by-step explanation:
