2 years ago

Multiply (8.42×10^3)(5×10^2) in scientific notation

Mathematics

1 answer:

Liono4ka [1.6K]2 years ago

3 0

4.21 x 106 is the answer

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The prime number you are looking for is 141

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Problems; e.g. 200 bottles of equal capacity hold 350 litres of water.

zheka24 [161]

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Step-by-step explanation:

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In a Las Vegas casino, gamblers lose a mean of on each roulette game, with a standard deviation of . (Since the standard deviati

aivan3 [116]

Answer: Hello your question is poorly written attached below is the complete question

answer:

0.1515

Step-by-step explanation:

Number of bets = 200

mean number of losses = $0.2

Standard deviation = $2.74

Determine P ( winning after 200 bets )

Average of 200 bets > 0. i.e. P( X > 0 )

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applying Z - distribution

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2 years ago

Need help on question 5 please.

Irina18 [472]

Answer:

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Step-by-step explanation:

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2 years ago

Solve the following system of equations by the substitution method.

ruslelena [56]

5x = y + 6 (I)
2x - 3y = 4 (II)
-------------------
We have:
5x = y + 6 → $x = \frac{y+6}{5}$

Soon:
2x - 3y = 4 → $2* (\frac{y+6}{5}) - 3y = 4\to \frac{2y+12}{5} - 3y = 4$
least common multiple (5)
 $\frac{2y+12}{5} - 3y = 4\to \frac{2y+12}{\diagup\!\!\!\!\!5} - \frac{15y}{\diagup\!\!\!\!\!5} = \frac{20}{\diagup\!\!\!\!\!5}$
$2y + 12 - 15y = 20$
$- 15y + 2y = 20 - 12$
$- 13y = 8$
$\boxed{\boxed{y = - \frac{8}{13} }}\end{array}}\qquad\quad\checkmark$

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3 years ago