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Margarita [4]
3 years ago
11

X cm

Mathematics
1 answer:
Drupady [299]3 years ago
3 0

Answer:

Step-by-step explanation:

x×x=x²

2×x=2x

2×x=2x

2×2=4

Add like terms to make the equation:

x^{2} +4x+4=7

So<em>:</em>

<em />x^{2} +4x=3

<em />

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Is the expression X^3 equivalent to X^3•3•3
k0ka [10]

Answer:

I think if you take the x out it would be equivalent

Step-by-step explanation:

3•3•3

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3 years ago
Calls from a call box are charged per minute at one rate for the five minutes, then a different rate for each additional minute.
nirvana33 [79]

Answer:

  c.  $0.75 per minute at one rate for the first 5 minutes and $0.25 per minute thereafter

Step-by-step explanation:

The last 5 minutes of the 12-minute call cost ...

  $5.50 -4.25 = $1.25

so the per-minute rate at that time is ...

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__

You know the answer at this point, but if you want to check the rate for the first 5 minutes, you can subtract 2 minutes from the 7-minute call to find that ...

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5 0
3 years ago
1. If a - b = 4 and a + b = 12, what is the<br> value of a?
Marta_Voda [28]
A=8

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^^^^^^^ ^^^^^^
8+4=12 8-4=4
A=8
8 0
3 years ago
The scale on a map is 1 cm : 6 km. If two cities are 13 cm apart on the map, what is the actual distance between the cities?
AnnZ [28]

Answer:

78 km!

Step-by-step explanation:

13 cm * 6 km per cm = 78 km in actual distance

4 0
2 years ago
The quality-control manager of a large factory is concerned about the number of defective items produced by workers. Thirty work
kotegsom [21]

Answer:

a. There is no blocking variable, and incentive plans will be randomly assigned to the workers.

Step-by-step explanation:

The Randomized Complete Block Design (RCBD) is a standard experimental design where experimental units or subjects are grouped as blocks (also known as replicates). In RCBD, subjects within each block are randomly assigned to the experimental units within a block. RCBD is a type of design that reduces variability by controlling variation within each treatment, thereby enhancing the estimation of the treatment effects (combinations of the factor levels of the different factors).

6 0
3 years ago
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