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3 years ago

Mr. Smith's first test's data: 55, 42, 78, 99, 69, 83, 74, 83, 97.

Mathematics

2 answers:

irina1246 [14]3 years ago

5 0

Answer:

arrange it first in increasing order

42,55,69,74,78,83,83,97,99

n=9

we have

Q2=(n+1)/2th term=(9+1)/2th term=5thterm=78

Citrus2011 [14]3 years ago

4 0

Answer:

Step-by-step explanation:

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sdas [7]

Answer:

Step-by-step explanation:

Side of the square = hypotenuse of triangle = √(4² + 2²)=√(16 + 4)=√(20)

Area of a square = (side)² = (√20)² = 20 units²

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3 years ago

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nika2105 [10]

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3 years ago

What best describes the number 5 write prime composite neither prime non composite or both prime and composite

dalvyx [7]

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4 years ago

A runner crossed the finish line at the time shown on the clock. The runners time was 2 hours and 45 minutes. What time did the

dsp73

Answer:

The race began at 12.

Step-by-step explanation:

He finish at 2 hours and 45 minutes. If you go back 2 hours and 45 minutes from the clock it is 12.

7 0

4 years ago

The area of the circle above is 314 units2. What is the circumference of the circle? use 3.14

aleksandrvk [35]

Answer:

$r =\sqrt{\frac{314 units^2}{3.14}} = 10 units$

And the circumference is given by this formula:

$C = 2\pi r$

And replacing the value fo r we got:

$C = 2\pi *10 units = 62.8 units$

And then the final answer would be 62.8 units for the circumference.

Step-by-step explanation:

For this case we know that the area for a circle is given by:

$A = \pi r^2$

And we know that $A = 314 units^2$

We can find the radius from the previous formula like this:

$r^2 = \frac{A}{\pi}$

$r^2 = \frac{314 units^2}{\pi}$

$r =\sqrt{\frac{314 units^2}{3.14}} = 10 units$

And the circumference is given by this formula:

$C = 2\pi r$

And replacing the value fo r we got:

$C = 2\pi *10 units = 62.8 units$

And then the final answer would be 62.8 units for the circumference.

8 0

3 years ago