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olchik [2.2K]
2 years ago
6

8. An $18,000 car depreciates at a rate of 16% per year. How old will the car be when it is worth $12,000?

Mathematics
1 answer:
blsea [12.9K]2 years ago
7 0
16 years the answer
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Whoever answers question 19 correctly with both parts of the questions answered
diamong [38]
Let's focus on 0.7*0.8 for now. 

Start by drawing a large square. Cut this figure into 10 rows and 10 columns. So this means you'll have 10*10 = 100 little squares. 

Now highlight the first 7 rows. Shade in all 70 squares (7*10 = 70)
Starting on the left side, highlight the first 8 columns. You'll shade in 80 squares (8*10 = 80)

Use different colors for your highlighting or somehow indicate different shading styles. This way you can see the overlapping region. The overlapping region consists of 56 squares (7 rows, 8 columns ---> 7*8 = 56 little squares)

Each little square represents 0.01, so having 56 of them means we have 0.56

This shows that 0.7*0.8 = 0.56

-----------------------------------------------------------

How is this different if we had 1.7*0.8? Well we can break 1.7 into 1+0.7 to have

1.7*0.8 = (1+0.7)*0.8
1.7*0.8 = (1)*0.8+(0.7)*0.8
1.7*0.8 = (1*0.8)+(0.7*0.8)

The portion (0.7*0.8) was done earlier. That result was 0.56. So we just need to compute (1*0.8), which is simply 0.8; recall that 1 times any number is that number itself.

Now simply add 0.8 to 0.56 to get 1.36

So, 1.7*0.8 = 1.36


5 0
3 years ago
What is the domain of the function y=√4x+8<br> Can you show your work too, please? (:
kirill115 [55]
y=  \sqrt{4(x+2)}
y = 2 \sqrt{x+2}

The domain would be -2, the x-intercept. 
6 0
3 years ago
Lable -4 1/2, 5.6, -2 3/8 and 1.35 from least to greatest
tiny-mole [99]
-4 1/2, -2 3/8, 1.35, 5.6
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2 years ago
Evaluate ba−1.2 when a=4 and b=12.
sergeinik [125]

Answer:

46.8

Step-by-step explanation:

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2 years ago
What is the range of the given function?
Paladinen [302]

{x | x = –5, 1, 4, 6}  

8 0
3 years ago
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