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ElenaW [278]
4 years ago
15

Is y = 2x^2 - 4x + 10 a function

Mathematics
1 answer:
Likurg_2 [28]4 years ago
5 0
Actually, if you replace y with f(x), then it would be a function.  Please mark Brainliest!!!
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Joseph has a job walking dogs and gets paid per dog. He needs to walk 45 dogs to earn enough money to pay for his soccer team fe
rusak2 [61]

Using proportions, it is found that it will take him 22.5 hours to walk the 45 dogs.

<h3>What is a proportion?</h3>

A proportion is a fraction of a total amount, and the measures are related using a rule of three. Due to this, relations between variables, either direct or inverse proportional, can be built to find the desired measures in the problem.

He walks 3 dogs in 1 hour and 30 minutes, we means that the time in hours it takes for him to walk a dog is:

t = 1.5/3 = 0.5 hours.

Hence the time it will take him to walk 45 dogs is given by:

45 x 0.5 = 22.5 hours.

More can be learned about proportions at brainly.com/question/24372153

#SPJ1

8 0
1 year ago
What is the square root of 98/2
timurjin [86]

Answer:

7

Step-by-step explanation:

\sqrt{ \frac{98}{2} }  =  \sqrt{49 }  = 7

I hope it helped you

8 0
2 years ago
I really need help on this !!
Naddik [55]

Answer:

r = -1

Step-by-step explanation:

(y2-y1)/(x2-x1)=m

(r,7)=(x1,y1) and (3,4)=(x2-y2) and m=-3/5

so plug in...

(4-7)/(4-r)=-3/5

then solve for r which will get that r = -1

numerator: 4-7=-3

denominator: 4-r=5 -> 4-5=0+r -> -1=r

4 0
3 years ago
10 + 2-x\3 = 7<br><br><br> \ = divided by<br><br> TIA!
Lemur [1.5K]
Your answer to this problem is 15


10 + 2 - 15 / 3 = 7


Hope it helped :)

8 0
4 years ago
Solve the following computation: 8.29 – 3.112
Ymorist [56]

Answer:

5.178

Step-by-step explanation:

Cancel the 9 for an 8

\hspace{10px}8.290\\\underline{-3.112}\\\text{     } \text{    }5.178\\

5 0
4 years ago
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