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givi [52]
3 years ago
5

Write 8.34* 10^4 in standard from

Mathematics
2 answers:
Kamila [148]3 years ago
7 0

Answer:

83,400

Step-by-step explanation:

Just carry the decimal point over to the right 4 places.

Musya8 [376]3 years ago
7 0

Answer:

The standard form of this equation would be 83,400

Step-by-step explanation:

When changing something from scientific notation to standard form, you simply move the decimal place to the right by the number in the exponent. Since it is a 4, we move it two places to the end of the number and then add two 0s for the two more remaining.

83,400

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Let x be normally distributed with mean μ = 133 and standard deviation σ = 23. use table 1.
Svetlanka [38]
A) z value =  (x - π) / <span>σ   = 100 - 133 /  23  =  -1.43
p(<= 100) = 0.0764

</span>
8 0
3 years ago
Approximately 5% of calculators coming out of the production lines have a defect. Fifty calculators are randomly selected from t
baherus [9]

Answer:

0.2611 = 26.11% probability that exactly 2 calculators are defective.

Step-by-step explanation:

For each calculator, there are only two possible outcomes. Either it is defective, or it is not. The probability of a calculator being defective is independent of any other calculator, which means that the binomial probability distribution is used to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

And p is the probability of X happening.

5% of calculators coming out of the production lines have a defect.

This means that p = 0.05

Fifty calculators are randomly selected from the production line and tested for defects.

This means that n = 50

What is the probability that exactly 2 calculators are defective?

This is P(X = 2). So

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 2) = C_{50,2}.(0.05)^{2}.(0.95)^{48} = 0.2611

0.2611 = 26.11% probability that exactly 2 calculators are defective.

3 0
3 years ago
Anyone know how to do this
svlad2 [7]

Answer:

The area of the rectangle on the left side is

9cm \:  \times 4cm = 36 {cm}^{2}

The area of the bottom rectangle is

6cm \times 2cm = 12 {cm}^{2}

The total area of the composite figure will be

36 {cm}^{2}  + 12 {cm}^{2}  = 48 {cm}^{2}

Step-by-step explanation:

The area of any given rectangle can be found by multiplying the length of that rectangle by its width. The rectangle on the left side has a length of 9cm but the width is unknown. To find the width, we subtract 6cm from the width of the bottom rectangle: 10cm. And that gives us 4cm.

Therefore, we can now calculate the area to be: length × width = 9cm × 4cm = 36cm²//

The area of the bottom rectangle can be found similarly by multiplying the length: 2cm by the width: 6cm of that rectangle. And the result gives us: 2cm × 6cm = 12cm²//

The total area of the composite figure is calculated by adding the results from the left and bottom rectangles together. And that gives us: 36cm² + 12cm² = 48cm²//

8 0
3 years ago
Find the value of 8!<br> O A. 56<br> O B. 16,777,216<br> O c. 40,320<br> O D. 64
Ksivusya [100]

8! is 40,320

Step-by-step explanation:

  • Step 1: Find 8! (8 factorial).

Factorial of 8 is the product of 8 and all the integers below 8.

⇒ 8! = 8×7×6×5×4×3×2×1

        = 40,320

8 0
3 years ago
What's the answer for 13x-37+2x+13​
USPshnik [31]

Answer:

11x+50

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
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