Sorry but I’m not that good with math I’m just trying to get my own answers but I pray that you get someone smart to help you answer it
Answer:
The answer in each numeral is:
- <u>f(4) = 28</u>
- <u>f(10) = -19</u>
- <u>f(-5) = -33</u>
- <u>f(9) = -9</u>
Step-by-step explanation:
To obtain the result in each case, you must replace the variable (n) by the value that appears in the second case, I'll explain it with the first exercise:
- 1. f(n) = 5n + 8
- f(4) = ?
As you can see, in the second doesn't appear f(n), but f(4), that means you must replace the "n" in the equation by 4, if we do this, we obtain:
- 1. f(4) = 5*(4) + 8
- f(4) = 20 + 8
- <u>f(4) = 28</u>
The first answer is 28, now we'll continue with the next exercises:
- 2. f(n) = -2n + 1
- f(10) = -2*(10) + 1
- f(10) = -20 + 1
- <u>f(10) = -19</u>
- 3. f(n) = 6n - 3
- f(-5) = 6*(-5) - 3
- f(-5) = -30 - 3
- <u>f(-5) = -33</u>
- 4. f(n) = -n
- <u>f(9) = -9</u>
In this form, <u><em>you can prove the answers are: 28, -19, -33, and -9 respectively</em></u>.
Answer:
666.67 ft^2
Step-by-step explanation:
We start with a 4x5 scale room
We then use the 1:20 scale to multiply the 4 and the 5 by 20
4*20=80
5*20=100
We now have the dimensions of the actual room, 80in.x100in.
Area=length*width
A=100*80
A=8000 in^2
We are not done yet, though. To get feet, you convert inches to feet. 1 foot=12 inches.
8000/12=666.667, or 666.67, or 667, depending what you would round to
Answer: bottom right
Step-by-step explanation:
Step-by-step explanation:
240 miles = 9 gallons of gas
1 mile = 9/240
= 3/80 (0.0375) gallons of gas
216 miles = 3/80 (0.0375) × 216
= 8.1 gallons of gas
