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Mice21 [21]
4 years ago
13

An unbiased cubic die has numbers 1 to 6 inscribed on each side. on average, how many rolls will you need in order to get a 6?

Mathematics
1 answer:
GaryK [48]4 years ago
4 0
(5/6)^x < 0.5
x = ceiling( log(0.5) / log(5/6) )
<span>x = 4 

 Here I worked it out, hopefully this helps :) 

</span>
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3 years ago
Carol wants to make a quilt using a scale of 1.5 inches=2 feet. Her scale drawing is 7.5 inches by 10.5 inches. What is the area
cestrela7 [59]

Answer:

140 ft

Step-by-step explanation:

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4 years ago
The 1992 world speed record for a bicycle (human-powered vehicle) was set by Chris Huber. His time through the measured 200 m st
Reil [10]

Answer:

a) 30.726m/s and b) 5.5549s

Step-by-step explanation:

a.) What was Chris Huber’s speed in meters per second(m/s)?

Given the distance and time, the formula to obtain the speed is

v=\frac{d}{t}.

Applying this to our problem we have that

v=\frac{200m}{6.509s}= 30.726m/s.

So, Chris Huber’s speed in meters per second(m/s) was 30.726m/s.

b) What was Whittingham’s time through the 200 m?

In a) we stated that v=\frac{d}{t}. This formula implies that

  1. t=\frac{d}{v}.

First, observer that 19\frac{km}{h} =19,000\frac{m}{h}=\frac{19,000}{3,600}m/s= 5.2777m/s.

Then, Sam Whittingham speed was equal to Chris Huber’s speed plus 5.2777 m/s. So, v=30.726\frac{m}{s} +5.2777\frac{m}{s}= 36.003 m/s.

Then, applying 1) we have that

t=\frac{200m}{36.003m/s}=5.5549s.

So, Sam Whittingham’s time through the 200 m was 5.5549s.

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4 years ago
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Answer:

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
What is the relationship between the exponents of (3^2) ^4 and the exponents of 3 ^8​
zysi [14]

Answer:

They are equal

Step-by-step explanation:

Using the rule of exponents

(a^m)^{n} = a^{mn}

Given

(3^2)^{4} = 3^{2.4} = 3^{8}

The exponents of both expression are 8 and therefore equal

4 0
3 years ago
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