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KATRIN_1 [288]
3 years ago
8

Add 3x2-4x+5, 9x - 10+2x2 and 7-5x2

Mathematics
2 answers:
mote1985 [20]3 years ago
6 0

Answer:

5x+2

Step-by-step explanation:

(3x2-4x+5)+(2x2+9x-10)+(-5x2+7)

Combine like-terms

The x-squared gets cancelled out

And you are left with 5x +2

Eva8 [605]3 years ago
4 0
I thinks this is the solution for this question. I tried doing it with explanations for you :) hope it helps

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1)fred eats 4 cups of brain flavored tofu each day. how many gallons does he eat every week?
denis-greek [22]

Answer: 1) 28 cups; 2)1.6 \frac{tablespoons}{minute}


Step-by-step explanation:

1) - As you know, there are 7 days in a week.

- Then, if Fred eats 4 cups of brain flavored tofu each day, you can calculate the amount he eats every week (which you can call x) by multiplying 4 cups by 7:

x=(4cups)(7)\\x=28cups

- Convert the result from cups to gallons:

x=(28cups)(\frac{0.0625gallons}{1cup})\\x=1.75gallons

2) - There are 60 minutes in an hour.

- Karen eats 3 pints of ice cream in an hour, therefore, she eats 3 pints in 60 minutes.

- You need to divide 3 pints by 60 minutes to calculate the amount she eats in an hour (which you can call y) by dividing 3 pints by 60 minutes:

y=\frac{3pints}{60minutes}

y=0.05\frac{pints}{minute}

- Convert the result to tablespoons:

y=(0.05pints)(\frac{32tablespoons}{1pint}=1.6tablespoons}

 - The answer is: 1.6\frac{tablespoons}{minute}

3 0
3 years ago
What is the answer to this question
Schach [20]
Vertical angles are equal

4x = 45 + 15
4x = 60
x = 60/4
x = 15
8 0
3 years ago
Read 2 more answers
Can you please help me with this
love history [14]
The grandparents that shop at Greggslist was 3 out of the 25 sampled.  That gives us a ratio of 3/25.  Convert this to decimal by dividing 3 by 25 and your answer is

3/25 = 0.12

Answer #3
5 0
4 years ago
Use the following quadratic to answer the questions below: x2 + 18x + 8 = 0
yanalaym [24]

Answer:

that is invalid question

Step-by-step explanation:

4 0
3 years ago
HELP PLEASE I NEED TO GET IT DONE BECAUSE ILL BE WITH MY FAMILY AT THANKSGIVING TOMORROW
dalvyx [7]

Answer:

6

Step-by-step explanation:

Straight line is 180

square = right angle=90

180-90=90

5x+(x+54)=90

6x+54=90

6x=36

x=6

Hope this helps :D

6 0
3 years ago
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