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3 years ago

What is the value of x enter your answer in the box.

Mathematics

1 answer:

ira [324]3 years ago

7 0

We can use vertical opposite angles. Which means the opposite angles where 2 lines intersects is the same.
3x + 50 = 6x - 10 (vert. Opp. Angles)
3x = 6x - 60
-3x = - 60
X = 20°

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Assume that you have a binomial experiment with p = 0.5 and a sample size of 100.

Shalnov [3]

Answer:

Option D) 50

Step-by-step explanation:

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p = 0.5

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$E(X) = np$

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3 years ago

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Step-by-step explanation:

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3 years ago

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trasher [3.6K]

Answer:

Given:

$\textsf{Mass of a dust particle} = \sf 7.5 \times 10^{-10}$

$\textsf{Mass of an electron} = \sf 9.1 \times 10^{-31}$

To calculate how many electrons have the same mass as one dust particle, divide the mass of a dust particle by the mass of an electron:

$\begin{aligned}\implies \dfrac{\textsf{Mass of a dust particle}}{\textsf{Mass of an electron}} & = \sf \dfrac{7.5 \times 10^{-10}}{9.1 \times 10^{-31}}\\\\& = \sf \dfrac{7.5}{9.1} \times \dfrac{10^{-10}}{10^{-31}}\\\\& = \sf 0.8241... \times 10^{(-10-(-31))}\\\\& = \sf 0.8241... \times 10^{21}\\\\& = \sf 8.2 \times 10^{20}\end{aligned}$

Therefore, approximately $\sf 8.2 \times 10^{20}$ electrons have the same mass as one dust particle.

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2 years ago

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snow_lady [41]

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4 years ago