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vlabodo [156]
3 years ago
10

Estimate the product of 25.311 × 4.65.

Mathematics
2 answers:
Radda [10]3 years ago
8 0
The best way is to round off the two multiplicands, not to round off the "exact" answer.

Round off 25.311 to 25 and round off 4.65 to 5.  Then the approx. product is 125.
Damm [24]3 years ago
3 0
The answer would be:

<span>117.69615

BUT since it's asking you to estimate, I would put:

"about 117.69"
</span>
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Alexander was offered a job that paid a salary of $24,000 in its first year. The salary was set to increase by 4% per year every
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9514 1404 393

Answer:

  $129,992

Step-by-step explanation:

The sum of a geometric series is given by ...

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Here, the first term is 24000, and the growth factor r is 1+4% = 1.04. The sum is then ...

  S5 = 24000·(1.04^5 -1)/(1.04 -1) ≈ 129992

The total earned over 5 years was $129,992.

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A spreadsheet can list the annual salaries and add them up. The salary each year is 1.04 times that of the previous year. That is shown in the attachment.

5 0
2 years ago
F(x) = x2 + 10<br> What is the average rate of chan<br> hange of f over the interval [-2, -1]?
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The average rate of change is given by [f(b) - f(a)]/(b - a), where a and b represent the interval [a, b].

Let a = -2

Let b = -1

[(-1)^2 + 10 - ((-2)^2 + 10)]/(-1 -(-2))

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[1 + 10 -4 -10]/(1)

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3 years ago
In october 2012, apple introduced a much smaller variant of the apple ipad, known as the ipad mini. weighing less than 11 ounces
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F(x) = \left \{ {{1} \atop {3.5}} \right.                        8.5≤
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8 0
3 years ago
Read 2 more answers
The random variable X is exponentially distributed, where X represents the time it takes for a person to choose a birthday gift.
garik1379 [7]

Answer:

The probability that X is less than 32 minutes is 0.736.

Step-by-step explanation:

Given : The random variable X is exponentially distributed, where X represents the time it takes for a person to choose a birthday gift. If X has an average value of 24 minutes.

To find : What is the probability that X is less than 32 minutes?

Solution :

If X has an average value of 24 minutes.

i.e. \lambda=24

The random variable X is exponentially distributed, where X represents the time it takes for a person to choose a birthday gift.

The exponentially function is \frac{1}{\lambda}e^{-\frac{x}{\lambda}}

The function form according to question is

f(x)=\{\frac{1}{24}e^{-\frac{x}{24}}, x>0\}

The probability that X is less than 32 minutes is

P[x

P[x

P[x

Therefore, the probability that X is less than 32 minutes is 0.736.

7 0
3 years ago
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