3 years ago

Stuck on this question

Mathematics

1 answer:

sashaice [31]3 years ago

6 0

Answer:

9262

Step-by-step explanation:

just plug in 22 for n and calculate

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Racehorse A man buys a racehorse for $20,000 and en- ters it in two races. He plans to sell the horse afterward, hoping to make

RUDIKE [14]

Answer: $10,600

Step-by-step explanation:

Worth raises to $100,000 by winning both races

Worth raises to $50,000 by winning one race

Worth decreases to $10,000 by loosing both

Probabilty of winning both races= $0.2\times 0.3$

Probabilty of winning one race= $0.2\times 0.7+0.8\times 0.3$ =0.38

Probabilty of loosing both races= $0.8\times 0.7$ =0.56

Expected profit= $0.06\left ( 100,000-20,000\right )+0.38\left ( 50,000-20,000\right )+0.56\left ( 10,000-20,000\right )$

=$10,600

3 0

4 years ago

Determine the ordered pair that represents the coordinates of the point where the terminal side of the angle measuring 245∘ inte

rosijanka [135]

The point
$x = \sin \theta \: and \: y = cos \theta$
lies on the unit circle.

The reference angle for 245° is 65°.

Since 245° lies in the third quadrant,

cosine is negative and sine is negative

Therefore 245° intersect the unit circle at

$x = - \sin ( 65 \degree ) \: and \: y = - \cos(65 \degree)$
In terms of x and y, 245° intersects the unit circle at

$( - x,-y)$