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Sati [7]
3 years ago
14

Which expressions are equivalent? Select Equivalent or Not equivalent for each pair of expressions. 3(a−b) and 3a−3b 2a(2+b) and

4ab
Mathematics
2 answers:
Lapatulllka [165]3 years ago
5 0
The first one is <span>Equivalent and the second is nonequivalent</span>
zysi [14]3 years ago
5 0

i just took the test, the first one is equivalent and the second one is not.

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Eva8 [605]

Answer:

164 Cm^3

Step-by-step explanation:

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3 years ago
In parallelogram DEFG, DH = x + 5, HF = 2y, GH = 3x – 1, and HE = 5y + 4. Find the values of x and y.
earnstyle [38]
The diagonals of a parallelogram bisect each other.

DH = HF and GH = HE

x + 5 = 2y
3x - 1 = 5y + 4

Solve the first equation for x.
x = 2y - 5

Now substitute 2y - 5 for x in the second equation.

3(2y - 5) - 1 = 5y + 4

6y - 15 - 1 = 5y + 4

6y - 16 = 5y + 4

y = 20

Now substitute 20 for y in the first original equation.

x + 5 = 2y

x + 5 = 2(20)

x + 5 = 40

x = 35

Answer: x = 35 and y = 20
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3 years ago
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Is a + b = b + a a commutative or associative property of addition
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aksik [14]

Answer:

4/15

Step-by-step explanation:

Experimental probability is the actual times the event occurs divided by the number of trials

Actual times : 8

Number of trials: 30

Experimental probability of a 2: 8/30 = 4/15

5 0
3 years ago
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