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Sonja [21]
3 years ago
11

Add the following polynomials, then place the answer in the proper location on the grid. Write the answer in descending powers o

f a. Add: 2a3 + 5a - 7 and 5a2 - 6a + 12
Mathematics
1 answer:
SSSSS [86.1K]3 years ago
3 0
Combine  2a^3+5a-7 and 5a^2-6a+12.

Rewrite this so that the second expression is beneath the first:

2a^3+5a-7 
5a^2-6a+12

Combine like terms.  The highest order term is 2a^3:

2a^3+0a^2 +5a-7 
        +5a^2 - 6a+12
----------------------------
2a^3 + 5a^2 - a + 5 (answer)

Note how these terms are in descending order by power of a.

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I need help finding the are of this
Allisa [31]

Answer:

78.5

Step-by-step explanation:

3.14*5*5=78.5

3 0
3 years ago
400 people were surveyed for this grab how many more people prefer vanilla than do strawberry
Marysya12 [62]

Using proportions, it is found that 68 more people prefer vanilla than do strawberry.

<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.

Researching this problem on the internet, it is found that, out of 400 people:

  • 35% preferred vanilla.
  • 18% preferred strawberry.

Hence the amounts are:

  • V = 0.35 x 400 = 140.
  • S = 0.18 x 400 = 72.

The difference is:

140 - 72 = 68.

68 more people prefer vanilla than do strawberry.

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

#SPJ1

8 0
2 years ago
Jose bought 1.5 pounds of apples for $3.60.
ipn [44]
I think the answer would be 81.60
8 0
4 years ago
Read 2 more answers
What is the value of x<br><br><br> 25 points!!!!!!!!!!!!!!!
Orlov [11]
A triangle's interior angles will add up to be 180°.  If you take what you have...the 39° and 141°...and add them up to be 141. Subtract the 141 from the 180° and you will get the value of x...

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4 0
4 years ago
For the sequence of even natural numbers 6,8,10,12,... find a13, the 13th term.
marshall27 [118]

b

Step-by-step explanation:

the pattern goes by 2s so you do 13 times 2 plus 4 which would be your 0th term because six is your first term so you add 4 and 26 you get 30 and it is not 33 because that is the 14th term

3 0
3 years ago
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