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3 years ago

Complete the factoring, 5x^2 - 40x = 5x( ) HELP ASAP PLS!

Mathematics

1 answer:

Aleksandr-060686 [28]3 years ago

8 0

Answer:

$5x(x-8)$

Step-by-step explanation:

Factor $5x$ out of $5x^{2} -40x$

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Jane will draw one card from the regular deck of 52 cards. In how many ways can she choose a jack or a black card?

elena-s [515]

Answer:

Step-by-step explanation:

In a regular 52 card deck, 26 are black (clubs or spades). Additionally, there are two red jacks (diamonds and hearts). This equals 28/52. As a probability, it would be 28/52=14/26=7/13. This could also be expressed as a percentage or decimal. 0.538 or 53.8%. But the question asks <em>how many ways</em> can she choose a jack or black card, so I’m assuming they don’t want the probability, just the number, which is 28.

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3 years ago

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Mika is a local farmer who is interested in how often residents in her town go to a farmer's market each month. She surveys 124

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Answer:

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3 years ago

Suppose a company needs temporary passwords for the trial of a new payroll software. Each password will have one digit followed

Alekssandra [29.7K]

Answer: The required number of passwords that can be created is 175760.

Step-by-step explanation: Given that a company needs temporary passwords for the trial of a new payroll software.

Each password will have one digit followed by three letters and the letters can be repeated.

We are to find the number of passwords that can be created using this format.

For the one digit in the password, we have 10 options, 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9.

Since there are 26 letters in English alphabet and letters can be repeated, so the number of options for 3 letters is

26 × 26 × 26 = 17576.

Therefore, the total number of ways in which passwords can be created using the given format is

$n=9\times17576=175760.$

Thus, the required number of passwords that can be created is 175760.

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3 years ago

3. A vehicle uses 15 gallons of gasoline to travel 13 miles. At this rate, how many miles can the

Tems11 [23]

1. Start by identifying what the question wants so we are looking for miles per 1 gallon.
2. Set up a statement. When the word “per” is being used it relates to a fraction or a ratio. In this question we need to find how many miles a single gallon will give us. So set it up as miles/gallons
3. Plug in your numbers. Now our statement is 13 miles/15 gallons
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Tip: always add in words into your calculations. Mainly the units you are using so you can quickly look and know what the units will be. This will help you in upper placement math as well

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3 years ago

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List 2 numbers between 5.2 and 5.03

Ann [662]

Answer:

5.1 and 5.05

Not really much to explain. Still, hope this helped!

P.S. (5.2 is more than 5.03, btw)

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3 years ago