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Marizza181 [45]
3 years ago
14

Expand & simplify (3x-4)^2 - (x+1)(x-1) Please anyone? I'm really bad at maths-

Mathematics
1 answer:
Mnenie [13.5K]3 years ago
5 0
The answer would be 8x^2-24x+17
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wo neighboring homeowners, , 2, simultaneously choose how many hours to spend maintaining a beautiful lawn. The average benefit
Fantom [35]

To calculate the average benefit of hours we must add all the values then divide by the number of values that we have.

<h3>What is the average?</h3>

Average is a term that refers to a value that represents the mean of a group of values. For example, if my friends and I have a race to run from point A to point B and our times are:

  • 69 seconds.
  • 58 seconds.
  • 45 seconds.
  • 120 seconds.
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The average time of my group of friends would be:

69 + 58 + 45 + 120 + 76 = 368

358 ÷ 73.6 seconds

The average of my group of friends would be 73.6 seconds.

According to the above, to identify the average profit per hour of my neighbors who own their lawns, you must use the same formula to obtain the result.

Note: This question is incomplete because the are some information missing. However I can answer it based on my prior general knowledge.

Learn more about average in: brainly.com/question/897199

5 0
3 years ago
Where is the blue dot? Fill in the blank
OverLord2011 [107]

Answer:

-19

Step-by-step explanation:

It's every 3 numbers because -7 would be between -10 & -4

7 0
3 years ago
Sampling every 100th invoice would be an example of:_______a. Randomization.b. Proxemics.c. Stratification.d. JRP.e. Observation
gregori [183]

Answer: C. Stratification

Step-by-step explanation: There are diverse samping techniques employed for statistical purposes depending on the tipe and nature of data available or other factors. When a data population is sampled in sects such that the entire data is divided into a equals groups at a fixed intervals based on a certain criteria, it is called stratified sampling. Here, data is divided into strata, with each stratum containing a fixed amount of samples with each partition taking place at regular interval. In the scenario stratification process is employed by sampling at a fixed and regular interval, however, the random nature of the data is not violated.

8 0
4 years ago
Ben wrote this expression. 123.4 + 520.06 Find the value of the expression.​
charle [14.2K]

Answer:

  • 643.46

Step-by-step explanation:

Hope it helps! :)

5 0
3 years ago
Please help!! I need answers by 8:00 ​
Llana [10]

Answer:

First is x-10=y Second is x/4=y

Step-by-step explanation:

7 0
3 years ago
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