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noname [10]
4 years ago
13

Adding polynomial expressions

Mathematics
1 answer:
slamgirl [31]4 years ago
3 0

Answer:Start with: 1.2x2 + 6x + 5 + 3x2 − 2x − 1.

2.Place like terms together:2x2+3x2 + 6x−2x + 5−1.

3.Which is:(2+3)x2 + (6−2)x + (5−1)

4.Add the like terms:5x2 + 4x + 4.

Step-by-step explanation:

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A box has the shape of a rectangular prism with height 31 cm. If the height is increased by 0.7 cm, by how much does the surface
vlada-n [284]

Answer

Step-by-step explanation:

since the left side is 31 the right side would be 31 too so multiply 31x31

19x3.4 i think

3 0
3 years ago
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What is the range of the function?
AleksAgata [21]
The range of the function on the graph is all real numbers greater than or equal to 2 because the range of a function is what the value of y could be, and y begins at 2 and keeps increasing indefinitely.
Hope this helps!

8 0
4 years ago
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What percentage is 40kg of 1tonne?
shepuryov [24]

So using the conversion of 1 metric ton to kg, we see that there are 1000 kg in 1 ton. Then we can divide 40 by 1000 to find the decimal:

\frac{40}{1000}=0.04

Then to convert this decimal to a percentage, we must multiply by 100%:

0.04*100=4

So now we know that 40 kg is 4% of 1 ton.

5 0
4 years ago
Find the equation of a line that is parallel to the line x=13 and contains the point (-1,8)​
pantera1 [17]

Answer:

The slope of the line x = 13 is undefined , therefore to find the equation of a line that is parallel to the line, so the equation of the line parallel to it could be x = any real number

Step-by-step explanation:

8 0
4 years ago
Gustavo and yuki were asked to find an explicit formula for the sequence 19, 0, -19, -38...
KiRa [710]

Answer:

<h2>Neither Gustavo nor Yuki</h2>

Step-by-step explanation:

It's an arithmetic sequence.

0-19=-19\\-19-0=-19\\-38-(-19)=-38+19=-19

The difference is constant.

The explicit formula of an arithmetic sequence:

a_n=a_1+(n-1)d

Substitute:

a_1=19,\ d=-19

a_n=19+(n-1)(-19)             <em>use distributive property</em>

a_n=19-19n+19\\\\a_n=(19+19)-19n\\\\a_n=38-19n

4 0
3 years ago
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