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AysviL [449]
3 years ago
8

If f(x) =2x²-x, find f(-4)-f(9)​

Mathematics
1 answer:
sergeinik [125]3 years ago
3 0
F(-4) = 36
f(9) = 153
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A population increases 3% each year. If the city is now 5 million, what will the population be in 5 years?
Step2247 [10]
5 million x 3% = 150,000
1 Year = 5,150,000

5.15 million x 3% = 154,500
2 Years = 5,304,500

5,304,500 x 3% = 159,135
3 Years = 5,463,635

5,463,635 x 3% = 163,909.05
4 Years = 5,627,544.05

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8 0
3 years ago
25% of what number is 19
vaieri [72.5K]

Answer:

76

Step-by-step explanation:

Normally you would do 76 * 0.25

For this I did 19 / 0.25

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4 0
3 years ago
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enrollment in the ski/snowboard club increased by 30% this year. there are now 182 students in the club. how many students were
user100 [1]
Increasing by 30% results in multiplication by 130/100, or 13/10.  Setting the original amount of students to x, we write the equation:

13x/10=182

We multiply by 10 for a result of:

13x=1820

Dividing by 13, we have:

x=140

Thus, 140 students were in the club last year.
8 0
3 years ago
Why is my foot a foot long?
fiasKO [112]

Answer:

It's not.

Step-by-step explanation:

The measure 'foot' came from the French Emperor Charlegmane. He proclaimed that the length of his foot is now a measurement. Unless your foot is exactly as big as Charlegmane's foot, it's not a foot.

4 0
2 years ago
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0.4x + 6.1, x= -5. (show work)
yan [13]

Answer:

<u>4.1 </u>

Step-by-step explanation:

0.4(-5)+6.1

0.4 times -5 is -2

-2 +6.1 = <u>4.1 </u>

3 0
3 years ago
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