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Sophie [7]
3 years ago
6

Expand and simplify (2x^2)(4x+5)-8x(x^2-2)

Mathematics
1 answer:
Olegator [25]3 years ago
5 0
The answer would be 10x^2 + 16x

good luck on whatever it is you’re doing ^^
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Hi uwu pls help me?? i really need it :'( dont make me cry
densk [106]

Answer:

4z-(3z) z

Step-by-step explanation:

I hope that helps

8 0
3 years ago
You spend 15 minutes doing homework. You spend 3 hours watching television. Write the ratio of the amount of time spent doing ho
german

The ratio of the amount of time spent doing homework to the amount of time spent watching TV is 1/12.

  • The time spent on doing the homework is 15 minutes.
  • The time spent watching television is 3 hours.
  • To calculate the ratio, we must have the same units for both quantities.
  • We have to convert the time spent watching television from hours to minutes.
  • 1 hour is 60 minutes.
  • 3 hours has 3*60 minutes.
  • 3 hours have 180 minutes.
  • So, the time spent watching television is 180 minutes.
  • The ratio of the amount of time spent doing homework to the amount of time spent watching TV is 15/180.
  • We need to simplify the fraction.
  • 15/180 is equal to 1/12.
  • Thus, the ratio of the amount of time spent doing homework to the amount of time spent watching TV is 1/12.

To learn more about fractions, visit :

brainly.com/question/10354322

#SPJ9

3 0
1 year ago
Which of these is an example of typing at a rate of 42 words per minute?
algol [13]
C. Typing 210 words in 5 minutes.

Explanation:
42 words per minute is equivalent to 210 words in minutes:

Write the 42 wpm and 210 words in 5 mins as a ratio:
42 : 1 and 210 : 5

Multiply both sides in the ratio 42 : 1 by 5:
42 x 5 = 210
1 x 5 = 5
= 210 : 5

Therefore 210 words in 5 mins is an example of the unit rate 42 wom because it is equivalent.

Hope this helps!
-SpaceMarsh
(Brainliest pls, tysm!)

7 0
3 years ago
What is the equation of the graphed line written in standard form?
Marianna [84]

Answer:

The answer is A)x = –3

Step-by-step explanation:

y=0 x=-3

3 0
3 years ago
Read 2 more answers
1 cup is equal to 8 fluid ounces. How many fluid ounces are in 3 cups, 3 fluid ounces?
Gnesinka [82]

Answer:

If one cup is 8 then 3 cups is 24

Step-by-step explanation:

This can be solved by multiplying:

1*8=8

3*8=24

4 0
3 years ago
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