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geniusboy [140]
3 years ago
7

(2x2 - 4x + 7) + (3x3 - 9x)

Mathematics
1 answer:
Leviafan [203]3 years ago
5 0
The answer is 20-13x
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Can someone answer this question?
Ber [7]
I hope this helps you

5 0
3 years ago
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it takes 1 hour longer to fly to st paul at 200 mi/h than it does to return at 250 mi/h. How far away is st.paul​
gtnhenbr [62]

Answer:

1000 miles

Step-by-step explanation:

We will use the distance equation to find the answer to this problem.

D = RT

Where

D is distance

R is rate

T is time

At 250 miles per hour, suppose it takes t hours to go to st. paul. Thus, we can write:

D = 250t

Now, at 200 mi per hour, it takes 1 hour longer, so the time is "t + 1", so we can write:

D = 200(t+1)

We can equate both and see:

250t=200(t+1)\\250t=200t+200

Now, we solve for t first:

250t=200t+200\\250t-200t=200\\50t=200\\t=\frac{200}{50}\\t=4

We want the distance of St. Paul, so we can use any equation. lets use the 1st equation:

D = 250t

we know t = 4

so

D = 250 * 4 = 1000 miles

Distance to St. Paul is 1000 miles

7 0
3 years ago
Solve x^2+3x+2=0 using the quadratic formula
zzz [600]

Answer:

x=−1,−2

Step-by-step explanation:

thats the answer

8 0
3 years ago
Gabe is planning on riding the roller coaster 25 times. If he has already ridden 36% of his 25 times, how many times has Gabe al
AVprozaik [17]
If you do 25 x X = 100
It would be x = 4
So we would divide 36% by 4 to get how many times he rode, which is 9
So he already has ridden 9 times.
BRANLIEST? :)
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3 years ago
Which situation does this graph best represent?
Murljashka [212]
I think it is a graph showing the growth of Eric's dog
7 0
3 years ago
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