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miss Akunina [59]
3 years ago
13

Which is a quadratic function?

Mathematics
1 answer:
ryzh [129]3 years ago
5 0

Answer: f(x)=5x^2-4x+5

Step-by-step explanation:

A quadratic function is as following; ax^2+bx+c

Notice that it cannot be f(x)=0x^2-4x+7 because if you solve; 0x^2=0 which eliminates the x^2.

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igomit [66]

Answer:

4 + (3s/10) gallons

Step-by-step explanation:

Originally, there are 4 gallons. Add that to the expression. Every second, 3/10 gallon are filled. So s times 3/10 equal the total number of gallons added. Add both expressions together to get the answer.

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3 years ago
Find the radius or diameter of each circle with the given dimension (Will give brainliest to correct answer)
Firdavs [7]

Answer:

3.14 = pi

1.) R = 1.5 and A = 7.065

2.) D = 28 and A = 615.44

3.) R = 10 and A = 314

Step-by-step explanation:

R = 0.5×d

Area of circle = π×r²

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Answer:

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3 years ago
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3 years ago
Six more than 1/5 a number is 12. What is the number
suter [353]

Answer:

Step-by-step explanation:

let x be the number

6+1/5x=12

1/5x=12-6

1/5x=6

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x=30

check: 6+(1/5*30)=6+6=12

8 0
3 years ago
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