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3 years ago

Suppose a coin were flipped 25 times. Which of the following would be a simple event?

Mathematics

2 answers:

Lemur [1.5K]3 years ago

7 0

Wouldnt it be getting 25 heads

Crazy boy [7]3 years ago

6 0

Its ether C or D because a coin has a 50% chance on landing on heads or tails so divide 25 by 2 which is 12.5 so guess C or D

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How many centimeters long is a leg of an isosceles right triangle if its hypotenuse has a length of 8√2 centimeters?

andrew-mc [135]

Answer:

The leg is 8 cm long

Step-by-step explanation:

An isosceles right triangle has the length of its hypotenuse and opposite equal

Let us call the length x

From Pythagoras’ , the square of the hypotenuse equals the sum of the squares of the two other sides

Thus, we have ;

x^2 + x^2 = (8 √2)^2

2x^2 = 128

x^2 = 128/2

x^2 = 64

x= √64

x = 8 cm

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3 years ago

Write answer as x=<br><br> x-21=99

murzikaleks [220]

X=120
This is the answer because 120-21=99

7 0

3 years ago

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svetoff [14.1K]

Answer:

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Step-by-step explanation:

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3 years ago

Please Help? A circle has an arc length of 5π in. The central angle for this arc measures π/3 radians. What is the area of the a

Zielflug [23.3K]

Answer:

The area of the associated sector is $\frac{25}{24}\pi \ in^{2}$

Step-by-step explanation:

step 1

Find the radius of the circle

we know that

The circumference of a circle is equal to

$C=2\pi r$

we have

$C=5\pi\ in$

substitute and solve for r

$5\pi=2\pi r$

$r=2.5\ in$

step 2

Find the area of the circle

we know that

The area of the circle is equal to

$A=\pi r^{2}$

we have

$r=2.5\ in$

substitute

$A=\pi (2.5^{2})=6.25\pi\ in^{2}$

step 3

Find the area of the associated sector

we know that

$2\pi\ radians$ subtends the complete circle of area $6.25\pi\ in^{2}$

by proportion

Find the area of a sector with a central angle of $\pi/3\ radians$

$\frac{6.25\pi }{2\pi} =\frac{x}{\pi/3}\\x=6.25*(\pi/3)/2\\ \\x=\frac{25}{24}\pi \ in^{2}$

8 0

3 years ago

In the figure to the right, if AC=12 and BC=9, what’s the radius?

Lynna [10]

Answer:

it aproximatley 7.937 rounded to the nearest tenth its 7.9

Step-by-step explanation:

3 0

4 years ago

Read 2 more answers