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mote1985 [20]
2 years ago
15

2 HC)A jar contains 0.65 liter of lime juice and 0.40 liter of orange juice. Meg poured a liter 0.35 liters of cranberry juice i

nto the jar. She then drank 0.10 liters of the mixture
A: Write an expression to represent the total amount of juice left in the jar

B: simplify the expression and identify which property is used in each step
Mathematics
1 answer:
Alika [10]2 years ago
5 0

Answer:

(0.65 + 0.40+ 0.35) - 0.10

Step-by-step explanation:

hope it helps!

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When testing for current in a cable with eight ​color-coded wires, the author used a meter to test five wires at a time. How man
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Answer:

56 different tests

Step-by-step explanation:

Given:

Number of wires available (n) = 8

Number of wires taken at a time for testing (r) = 5

In order to find the number of different tests required for every possible pairing of five wires, we need to find the combination rather than their permutation as order of wires doesn't disturb the testing.

So, finding the combination of 5 pairs of wires from a total of 8 wires is given as:

^nC_r=\frac{n!}{r!(n-r)!}

Plug in the given values and solve. This gives,

^8C_5=\frac{8!}{5!(8-5)!}\\\\^8C_5=\frac{8\times 7\times 6\times 5!}{5!\times 3\times2\times1}\\\\^8C_5=56

Therefore, 56 different tests are required for every possible pairing of five ​wires.

6 0
3 years ago
Given the rational expressions 7/(x ^ 2 - 12) and (2x - 1)/(x + 2) which of the following is true?
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Answer:

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Step-by-step explanation:

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Which property is illustrated by the following statement? 5z + 1 = 1 + 5z
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It is the commutative property of addition
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I do not know math and im not in highschool im in middle school T_T
Ymorist [56]

Answer:

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Step-by-step explanation:

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