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iragen [17]
3 years ago
13

)The histogram shows the number of gold medals won by different numbers of students at an art competition. Which of the followin

g statements is correct regarding the number of students and the number of gold medals won?
A histogram titled Gold Medals Won is shown. The horizontal axis is labeled Number of Gold Medals with bins 0 to 2, 3 to 5, 6 to 8, and 9 to 11. The vertical axis is labeled Students with values from 0 to 10 at intervals of 1. The first bin goes to 4, the second goes to 6, the third goes to 8, and the last goes to 2.

A total of 8 gold medals were won by all the students.
Eight gold medals were won by 6, 7, or 8 students.
A total of 8 students won all the gold medals.
Eight students won 6, 7, or 8 gold medals.
Mathematics
2 answers:
Mnenie [13.5K]3 years ago
8 0

Answer:

Eight students won 6, 7, or 8 gold medals.

Step-by-step explanation:

We see that the third bin is labelled 6 - 8. Since this is on the horizontal, or x, axis, this means that the students in this "bin" have won 6 - 8 medals, which is the same as saying winning 6, 7, or 8 medals.

Because this "bin" goes to 8, that means that there are 8 students who earned this many medals.

Thus, the answer is D.

Hope this helps!

luda_lava [24]3 years ago
6 0

Answer:

Last one:

Eight students won 6, 7, or 8 gold medals.

Step-by-step explanation:

Eight students won 6, 7, or 8 gold medals

The values on vertical axis axis are frequencies.

Frequency corresponding to 6 - 8 is 8 which means 8 students won 6 to 8 gold medals, i.e 6 7 or 8 gold medals (because no. of medals has to be a natural number)

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3 years ago
The height of a stuntperson jumping off a building that is 20 m high is modeled by the equation h = 20 -57, where t is the time
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A stuntman jumping off a 20-m-high building is modeled by the equation h = 20 – 5t2, where t is the time in seconds. A high-speed camera is ready to film him between 15 m and 10 m above the ground. For which interval of time should the camera film him?

Answer:

1\leq t\geq \sqrt{2}

Step-by-step explanation:

Given:

A stuntman jumping off a 20-m-high building is modeled by the equation

h =20-5t^{2}-----------(1)

A high-speed camera is ready to making film between 15 m and 10 m above the ground

when the stuntman is 15m above the ground.

height h = 15m  

Put height value in equation 1

15 =20-5t^{2}

5t^{2} =20-15

5t^{2} =5

t^{2} =1

t =\pm1

We know that the time is always positive, therefore t=1

when the stuntman is 10m above the ground.

height h = 10m  

Put height value in equation 1

10 =20-5t^{2}

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5t^{2} =10

t^{2} =\frac{10}{5}

t^{2} =2

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Therefore ,time interval of camera film him is 1\leq t\geq \sqrt{2}

7 0
3 years ago
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Answer:

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So,

Fraction of pick up cars = \frac{1}{4}(\frac{1}{3})=\frac{1}{12}

Therefore,

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3 0
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