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3 years ago

Please help me please lots of points

Mathematics

2 answers:

Anuta_ua [19.1K]3 years ago

6 0

The answer in scientific notation would be 5×10^1 Which is 50 in standard notation

To get this you first look for you two numbers which are 1*10^21 and 5*10^22

However a key word in this word problem is how many times greater than

When you see this, you will divide so 1×10^21 ÷ 5×10^22 = 5×10^1

When you have your answer to convert it into standard notation you just add one 0 to the 5 giving you 50, because its only to a power of 1

Therefore, the diameter of the IC 1101 is 50 times greater than the diameter of the Milky way

tigry1 [53]3 years ago

5 0

uhh as each scientific notation is 10 more, so therefore 5 x 10

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yaroslaw [1]

Answer:

They multiplied the exponents instead of adding.

Step-by-step explanation:

Essentially, 2^2 x 2^3 is (2)(2) x (2)(2)(2) which is 5, not 6

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What is the <br>greatest common factor of 27 and 18?

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Answer:

Step-by-step explanation:

27:

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2 years ago

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Zina [86]

Answer and Explanation:

Gina wanted to swim at the pool. She is allowed to spend at most $30. The cost to swim in the pool is 3 dollars per hour plus a flat fee of $3. How many hours can Gina swim without going over her spending limit?

This problem can be represented by $3x+3\leq 30$ .

'x' would be the number of hours. "At most" means less than or equal to. So, the value of x would have to be less than or equal to 30.

$3x+3\leq 30-3\\\\3x\leq 27\\\\3x/3\leq 27/3\\\\\boxed{x\leq9}$

So, Gina would have a maximum of 9 hours to swim in the pool.

Hope this helps.

3 0

3 years ago

Domain and range of the function and it’s inverse

sineoko [7]

Answer:

B (second table in list)

Step-by-step explanation:

The function is a quadratic with vertex and y-intercept at (0,-2). The parabola opens up meaning only y - values above -2 are a part of the function. Since range is the set of all y values, then the range is $y\geq -2$ .

The domain is not restricted and it is all real numbers.

The inverse of the function is where x and y are switched. So the range becomes the domain and vice verse.

This means the domain of the inverse is $x\geq -2$ and the range of the inverse is all real numbers.

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3 years ago