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-Dominant- [34]
3 years ago
7

NEED HELP AND WILL MARRK BRAINLIEST!!! It's due today!!

Mathematics
1 answer:
fenix001 [56]3 years ago
5 0

Answer:

Dot plot, because a small number of scores are reported individually.

Step-by-step explanation:

Histogram is usually used when a group of data to be represented is usually large and given in ranges or intervals.

However, for a data set, such as the scores of the group of 12 students who participated in a dance competition are  reported individually, and not as ranges or intervals, a dot plot would best for representing this small number of scores.

See attachment below to see how we can easily represent the given scores of the students on a dot plot. Each dot represents a score value for each student.

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6:00 pm

Step-by-step explanation:

Just simply subtract the time of the movie by the duration of Jeannie and her partner's dinner.

7:30 pm is the time of the movie

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6:00 pm is the latest time they should arrive at a restaurant

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Which of the following is equivalent to 75/4 <br> A- 18 3/18<br> B- 18 3/4<br> C- 71<br> D- 79
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4 years ago
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From a point on the ground that is 120 feet from the base of a vertical tree, the angle of elevation to the top of the tree is 3
andriy [413]

Answer:

\boxed {\boxed {\sf 69.28 \ feet}}

Step-by-step explanation:

Assuming that the tree is perpendicular with the ground, we can use trigonometric ratios to find the height of the tree.

First, let's draw a diagram. From the point on the ground to the base, it is 120 feet and forms a 30 degree angle. We want to find the height of the tree, which is labeled h. (The diagram is attached and not to scale).

Next, recall the ratios.

  • sin(θ)= opposite/hypotenuse
  • cos(θ)= adjacent/hypotenuse
  • tan(θ)= opposite/adjacent

We see that the height is opposite the 30 degree angle and 120 is adjacent.

  • opposite=h
  • adjacent=120

Since we are given opposite and adjacent, we must use tangent.

tan ({\theta)=\frac{opposite}{adjacent}

Substitute the values in.

tan(30)=\frac{h}{120}

We are solving for h, so we must isolate it. It is being divided by 120 and the inverse of division is multiplication. Multiply both sides by 120.

120*tan(30)=\frac{h}{120}*120

120*tan(30)=h

120*0.5773502692=h

69.2820323=h

Round to the hundredth place (2 decimal places). The 2 in the thousandth place tells us to leave the 8 in the hundredth place.

69.28 \approx h

The height of the tree is about <u>69.28 feet.</u>

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3 years ago
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