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2 years ago

Choose the property of addition that justifies the equation.

Mathematics

1 answer:

maks197457 [2]2 years ago

5 0

Answer:

1. Associative Property

2. Commutative Property

3. Identity Property

Step-by-step explanation:

1. 2 + (b + 6) = (2 + b) + 6

Associative Property

2. (4 + x) + 6 = 6 + (4 + x)

Commutative Property

3. 0 + a = a

Identity Property

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What is 2.75 rounded to the nearest hundredth

almond37 [142]

Well first off we need to know how to round or what rounding is. Rounding is the approximation of numbers usually decimals to a approximate cut off number for numbers that are too long or hard to work with/remember. To round a number you simply need to look at the number behind that number whether its a whole number (integer) or a decimal, either one will work. Now continuing on (on) how to round the number, look at the number after it and if it is 5 or above the number rounds up +1 and all numbers behind that turn to 0. For example 3.25500 round to the nearest hundredth, 3.26(000). Now if the number is 4 or smaller then you don't do anything at all (no rounding) and all the numbers after the being rounded number turn to 0's like so, 3.254(0000) rounded to the nearest hundredth, 3.25(00000). So now that we know how to round and what rounding is we need to look at are hundredth place on are number here and see what the next number is after that, in this case it is 0 because there is no stated number there the default next number is 0 like so,
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Enjoy!=)

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3 years ago

Graph the system of inequalities presented here on your own paper, then use your graph to answer the following questions: y <

Mandarinka [93]

Part A:
The first thing you should do is to graph both lines. Notice that one is of positive slope and another of negative slope.
The solution of the inequation system is given by the shaded region. That is, all the points that are in the shaded region satisfy the system of inequations.
Part B:
the point (-2, -2) is NOT included in the solution area (it is not in the shaded region.
Mathematically it is demonstrated by substituting inequalities and seeing that they are not satisfied
inequality 1
-2 <4 (-2) - 2
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inequality two
-2> = - (5/2) (- 2) - 2
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3 years ago

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vivado [14]

Answer:0.36

Step-by-step explanation:

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3 years ago

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Serga [27]

A function can only have one y value for every x value.

the answer is D

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3 years ago

Read 2 more answers

A company has installed new machinery that will produce a savings rate (in thousands of dollars per year) of S'(x) = 225-x^2, wh

Kipish [7]

Answer:

After 15 years the use of said machine is no longer profitable

Step-by-step explanation:

it should be used, as long as the money generated is not smaller as the costs generated. By setting both formulas equal (calculating the x value for when they are equal) you get x = 15 and x = -2.5(which doesnt make sense in this context).

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3 years ago

Choose the property of addition that justifies the equation.​

Choose the property of addition that justifies the equation.