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olya-2409 [2.1K]
2 years ago
5

&

Mathematics
1 answer:
Nady [450]2 years ago
6 0

Answer:

the answer is B and C

Step-by-step explanation:

9x4=36

6x6=36

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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
balu736 [363]

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
New York City's temperature was "18° F in the morning. If the
pshichka [43]

Answer:

9° F

Step-by-step explanation:

We do 18 - 9 to get 9 ° F

6 0
2 years ago
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NEED HELP IN MATH , SERIOUS ANSWERS PLEASE
Damm [24]
The answer would be they are congruent. 

It's because there was no vertical/horizontal stretch and compression listed in the problem's transformations. The figure was translated throughout the graph. 

4 0
3 years ago
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Still have to times it by 20%
Brut [27]
Times what by 20% ? If you can ask me the full question i would love to help!
6 0
3 years ago
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The cost to hire a plumber for x hours is shown on the graph. For this graph, what does the y-intercept of the line of best fit
Alenkasestr [34]
The y-intercept represents the flat charge to hire the plumber

Explanation: The y-intercept is 0 hour, which can represent flat charge
5 0
2 years ago
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