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pantera1 [17]
3 years ago
15

Which is a logarithmic statement for 10^3.5=3162.28?

Mathematics
1 answer:
sweet [91]3 years ago
6 0

Answer:

log(3162.28)  =  log( {10}^{3.5} )  = 3.5 log(10)  = 3.5 \times 1 = 3.5

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Sandy spent 3 hours on 2 science projects. At this rate, how long would it take her to complete 8 science projects
ycow [4]
Gotta put characters

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3 years ago
Erika starts with $245 in her checking account. After 5 weeks of adding the same amount each week, she has $570.
Lelechka [254]

570-245 = 325

325 / 5 = 65

she keep adding 65 dollars to her acc every week

4 0
3 years ago
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The mean weight 20 students in a room is 65 kg one student one student who weight is 88kg went into the room what is the new mea
umka2103 [35]

The new mean is 66.09

<u>Explanation:</u>

Mean weight of 20 students = 65kg

One student with 88kg entered the room.

New mean = ?

\frac{x_1+x_2+....+x_2_0}{20} = 65

\frac{x_1+x_2+....+x_2_0 + 88}{21} = ?

The above equation can further be written as:

x_1 + x_2 +....+x_2_0 = 65 X 20\\\\x_1 + x_2 +....+x_2_0 = 1300

New mean = \frac{1300 + 88}{21}

                 = 66.09

Therefore, the new mean is 66.09

6 0
3 years ago
The weekly earnings of students in one age group are normally distributed with a standard deviation of 47 dollars. A researcher
ELEN [110]

Answer:

Option D) 340

Step-by-step explanation:

We are given the following in the question:

Alpha, α = 0.05

Population standard deviation, σ = $47

Margin of error = 5

95% Confidence Interval:

\mu \pm z_{critical}\frac{\sigma}{\sqrt{n}}

\text{Margin of error} = z_{critical}\frac{\sigma}{\sqrt{n}}

Putting the values, we get,

z_{critical}\text{ at}~\alpha_{0.05} = 1.96

5 = 1.96(\dfrac{47}{\sqrt{n}} )\\\\\sqrt{n} = \dfrac{47\times 1.96}{5}\\\\n = 339.443776\\\Rightarrow n \approx 340

Thus, the correct answer is

Option D) 340

7 0
3 years ago
In the rectangular prism shown below, which lines are parallel?
olga_2 [115]

Answer:

JN and LP...............

8 0
3 years ago
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