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krok68 [10]
3 years ago
9

Find the sum: (3x3 + 2x2 + x + 4) + (2x3 - x2 - 3x + 1)​

Mathematics
2 answers:
Darina [25.2K]3 years ago
7 0
Answer: 5x3 + x2 - 2x + 5

Make sure to combine like terms and watch out for if it’s subtraction or addition.
BabaBlast [244]3 years ago
7 0

Answer:

24-4x

Step-by-step explanation:

That's your answer

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2x^6/20x^7 <br> pls help me i have a test today and i don’t know how to solve it
Vedmedyk [2.9K]

Answer:

\frac{1}{10x}

Step-by-step explanation:

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3 0
3 years ago
A poster is to have a total area of 125 cm2. There is a margin round the edges of 6 cm at the top and 4 cm at the sides and bott
jeka57 [31]

Answer:

The correct answer is 15 cm.

Step-by-step explanation:

Let the width of the required poster be a cm.

We need to have a 6 cm margin at the top and a 4 cm margin at the bottom. Thus total margin combining top and bottom is 10 cm.

Similarly total margin combining both the sides is (4+4=) 8 cm.

So the required printing area of the poster is given by {( a-10 ) × ( a - 8) } cm^{2}

This area is equal to 125 cm^{2} as per as the given problem.

∴ (a - 10) × (a - 8) = 125

⇒ a^{2} - 18 a +80 -125 =0

⇒ a^{2} - 18 a -45 = 0

⇒ (a-15) (a-3) = 0

By law of trichotomy the possible values of a are 15 and 3.

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Thus the required answer is 15 cm.

7 0
2 years ago
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NEED ANSWER NOW PLEASE!
Len [333]
For this case, the first thing you should do is the following sum:
 income = Annual Salary + benefits
 Substituting values we have:
 income = (48500) + (2500 + 5000)
 income = 56000
 Answer:
 
She can expect a total amount of income with benefits from:income = 56000
 (option 4)
7 0
3 years ago
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