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Serga [27]
2 years ago
14

) How long does he travel at 30 km/h, if he travels 1.2 h at 20 km/h?​

Mathematics
1 answer:
GREYUIT [131]2 years ago
4 0

Step-by-step explanation:

please mark me as brainlest

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Find the exact values of the indicated trigonometric functions. Write fractions in lowest terms.
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For this case we have that by definition of trigonometric relations of a rectangular triangle, that the sine of an angle is given by the opposite leg to the angle on the hypotenuse of the triangle. While the tangent of the same angle is given by the leg opposite the angle on the leg adjacent to the angle.

Then, according to the figure we have:

sin (B) = \frac {7} {25} = 0.28\\tg (B) = \frac {7} {24} = 0.2917

Answer:

sin (B) = \frac {7} {25}\\tg (B) = \frac {7} {24}

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3 years ago
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The doghouse shown has a floor , but no windows. Find the total surface area of the dog house, including the door.
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Step-by-step explanation:

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3 years ago
A number cube was rolled as part of an experiment. The results are shown in the table. Explain how to find the experimental prob
pychu [463]

The experimental probability of rolling a 6 is 9/60  which can be determined by dividing the frequency of the observation 6 with the total frequency of the experiment.

<u>Step-by-step explanation:</u>

Experimental probability is different from theoretical probability because the former is obtained by experimentation  while the latter is what we expect theoretically.When we take a number of observations, the experimental probability and theoretical probability need not be the same.

In this question we have to determine the experimental probability of 6. It can be determined by dividing the frequency of the observation 6 by the total frequency of the experiment.

frequency of 6=9

total frequency=frequency of 1+frequency of 2+frequency of 3+frequency of 4+frequency of 5+frequency of 6

=13+11+9+8+10+9

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P(6)=frequency of 6/total frequency

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