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kobusy [5.1K]
3 years ago
11

Use the bar graph to find the experimental probability of the event.

Mathematics
1 answer:
julsineya [31]3 years ago
7 0

Answer:

Add total rolls:

The number of rolls is the height of each bar:

14 + 12 + 16 + 15 + 13 = 70

70 total rolls

The numbers greater than 3 are 4 and 5

4 was rolled 15 times and 5 was rolled 13 times

15 + 14 =28 Total times

The probability of that happening would be 28/70 which reduces to 2/5

The answer as a fraction is 2/5 which is 40% as a percentage.

IF your graph matches this data :)

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Using a compass, construct an accurate copy of triangle DEF. Check that EF = 4.6 cm. ​
MaRussiya [10]

Step-by-step explanation:

construct 90° then measure 4.6 cm and draw a line from F to D

5 0
2 years ago
Nik needs to estimate how many books will fit in a bin. Each book is 0.75 feet tall, 0.75 feet wide, and 0.25 feet thick. The bi
cricket20 [7]

Step-by-step explanation:

first you find the volume of a bin.

that is multiplication of 3 dimensions given.

4*4*4=64 cubic feet...

now volume of books..

0.75*0.75.0.25=0.14 cubic feet

now the number of books that will fit the bin=volume of bin/volume of books

64/0.14=455

455 books

7 0
3 years ago
What is the sum _71/6 +35/6 in the simplest terms ? Show your work
adoni [48]

Answer:

The answer in simplest term is 35.33333334.

Step-by-step explanation:

First, we need to divide 71 and 6.

71/6 = 23.66666667.

Now we need to divide 35 and 6.

35/6 = 11.66666667.

Now we need to add the two quotients.

23.66666667 + 11.66666667 = 35.33333334.

And that is the final answer.

I hope this helps!

7 0
3 years ago
HELP ON THIS PROBLEM!!<br><br> Solve the following 0deg&lt; x&lt; 360deg: cos x= cos 2x
blsea [12.9K]

Answer:

x=0^\circ,120^\circ,240^\circ,360^\circ

Step-by-step explanation:

<u>Use identities to set the equation up as a quadratic</u>

\cos x=\cos 2x;\:0^\circ \leq x \leq 360^\circ\\\\\cos x=2\cos^2 x-1\\\\0=2\cos^2 x-\cos x-1

<u>Make the substitution u=cos(x) and solve the quadratic</u>

<u />0=2u^2-u-1\\\\0=(2u+1)(u-1)

\displaystyle 0=2u+1\\\\0=2\cos x+1\\\\-1=2\cos x\\\\-\frac{1}{2}=\cos x\\\\120^\circ,240^\circ=x

0=u-1\\\\0=\cos x-1\\\\1=\cos x\\\\0^\circ,360^\circ=x

Hence, x=0^\circ,120^\circ,240^\circ,360^\circ

7 0
2 years ago
A right triangle has sides of length 3ft., 4ft., and 5 ft. what is the perimeter? what is it’s area?
ella [17]

Answer:

the perimeter is 12 feet

the area is 60 feet

Step-by-step explanation

perimeter=adding all sides

area=multiplying all sides

7 0
3 years ago
Read 2 more answers
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