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2 years ago

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On a class trip to the museum, 5/8 of the students saw the dinosaurs and 2/8 of the students saw the jewelry collection. What fr

action more of students saw the dinosaurs than the jewelry collection? Write in simplest form

1 answer:

Elina [12.6K]2 years ago

7 0

The kids at the jewelry collection had more students because over all 5 is bigger than 2.

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A survey of 1,000 men and women asked, "Do you earn over $50,000 per year?" The table below shows the responses for males and fe

frutty [35]

Male Female    Total
Income over $50,000   485 385   870
Income below $50,000 65   65 130
<span>Total   550 450   1,000

Probability of being male: 550/1000 = 0.55
Probability of earning over $50,000: 870/1000 = 0.87

0.55 x 0.87 = 0.4785

Probability of being male and earning over $50,000: 485/550 = 0.8818

</span><span>C) No, P(being male | the person earns over $50,000) ≠ P(being male)</span><span>

</span>

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3 years ago

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The second train will catch up with the first train in 1.6 hours

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2 years ago

Pentagon ABCDE is shown on the coordinate plane below.

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Point D will pass from (1,-2) to (-1,2)

The second choice is the correct one.

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What number would you multiply (6x-y+4) by so that the result is an equivalent expression to (3x+9x)-(2y-8) Be sure to enter you

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Answer:

2

Step-by-step explana

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3 years ago

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What is the equation of the sinusoid shown in the graph?

ololo11 [35]

Answer:

<em>Answer: C</em>

Step-by-step explanation:

<u>The Cosine Function</u>

The graph of a cosine function is a sinusoid that starts at its maximum value of 1 at x=0 and takes x=2π radians to complete a full cycle. The function of the parent cosine function is:

$y=\cos x$

Both the amplitude A and the angular frequency w of a cosine can be modeled by the function

$y=A\cos(\omega x)$

The graph of the cosine function shown in the figure has an amplitude of A=3 and it completes a full cycle at x=π/2, thus:

$\frac{\pi}{2}\omega =2\pi$

Thus:

$\omega = 4$

Therefore, the equation of the sinusoid is:

$y=3\cos (4x)$

Answer: C

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2 years ago

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