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Andrei [34K]
3 years ago
5

Simplify the expression (7x+1/2)+(6x-9 1/2)

Mathematics
1 answer:
monitta3 years ago
3 0
To make this easier to read, I'll be substituting 1/2 for .5; they mean the same thing, but it's less confusing to type it in its decimal form.
7x + .5 + 6x - 9.5
Combine like terms (x's can be added together, and so can reg. numbers)
(7x + 6x) + (.5 - 9.5)
13x - 9
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3 years ago
Carter wants to buy a new movie for $25 he already has $11 dollars saved and his mom will give him $2 for each chore he does wha
Drupady [299]

Answer:

38

Step-by-step explanation:

25+11=36+2=38 that is the answer

5 0
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Solve (x^2+2xy+y^2)(X+1)<br><br> Show steps
AleksandrR [38]

Answer:

\large\boxed{x^3+x^2+2x^2y+2xy+xy^2+y^2}

Step-by-step explanation:

Use FOIL: <em>(a + b)(c + d) = ac + ad + bc + bd</em>

<em />

(x^2+2xy+y^2)(x+1)\\\\=(x^2)(x)+(x^2)(1)+(2xy)(x)+(2xy)(1)+(y^2)(x)+(y^2)(1)\\\\=x^3+x^2+2x^2y+2xy+xy^2+y^2

4 0
3 years ago
A mountain climber ascends 800 feet per hour from his original position. After 6 hours, his final position is 11,600 feet above
coldgirl [10]
<span>To find the beginning position, we need to know how many feet the climber has ascended in the 6-hour time frame. At the rate of 800 feet per hour, this would total to 4,800 feet in 6 hours (800 * 6). Subtracting this amount from the final position would give the elevation at the beginning of the ascent: (11600 - 4800) = 6,800 feet above sea level to begin.</span>
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4 years ago
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ratelena [41]

Answer:

Domain: B but should be x > 0

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Step-by-step explanation:

The domain is the set of all x values. This is seen in the graph as all values on the x-axis which have a value for the function. Since this function begins at the y-axis (where x = 0) and continues right then the domain is x > 0.

The range is the set of all y values. This is seen in the graph as all values on the y-axis which have a value for the function. Since the function curves on the coordinate plane all along the y-axis, it has no restrictions. This means it has all y values as a part of the function. The range is all real numbers.

4 0
4 years ago
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