Step-by-step explanation:
F(2)=3(2)²-7
=5
................
Answer:
Step-by-step explanation:
If two ratios make a proportion then it can be shown as:
Let's verify the answer choices with this method
A. 1/4 and 5/25
- 1*25 = 4*5
- 25 = 20, incorrect, not a proportion
B. 1/4 and 7/24
- 1*24 = 4*7
- 24 = 28, incorrect, not a proportion
C. 1/4 and 10/48
- 1*48 = 4*10
- 48 = 40, incorrect, not a proportion
D. 1/4 and 9/36
- 1*36 = 4*9
- 36 = 36, correct, this is a proportion
Answer:
18ft^2
Step-by-step explanation:
I'm going to use a dilation method to help solve this.
First we need to find your base. So 12/4 = 3.
6*3 = 18.
18 ft^2
First we will multiply both sides by 2 to eliminate 1/2 from h.
2 x A = 1/2bh x 2
2A = bh
Now we divide both side by b to eliminate b from h.
2A / b = bh/b
2A/b = h