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3 years ago

Evaluate 2xy when x = -1/4 and y = 3

Mathematics

1 answer:

Tcecarenko [31]3 years ago

6 0

Answer:

-1.5

Step-by-step explanation:

2(-1/4)(3)

=-1.5

You replace x with -1/4 and y with 3 inside of parenthesis

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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

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

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.

5 0

3 years ago

How many seconds are in 9 minutes?

Setler [38]

Answer:

540

Step-by-step explanation:

9 times 60 equals 540

3 0

3 years ago

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Example : C For Cheeseburger , S for small and etc

Nookie1986 [14]

Answer:

3+2+2-1+2=8

Step-by-step explanation:

Hope this helps!

8 0

3 years ago

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Find x. Round your answer to the nearest tenth of a degree.<br> 12

Scorpion4ik [409]

Answer:

एकबाजु जइने एक आदमी गाण्डो एक नवो मोबेल ले आल्यूं इजिएइए एक नवो पायो एक हकलो जलेबी नहे हे लेवू हे रमेस आमहतया एक हकलो जलेबी लायो नहे नहे हे रमेस उजाड़ीपणो एक आदमी टृऋट श्रडश्रबग ह़ठषज्ठद क्

२+२(४८३₹८)-९८२

ठथखथखदगददडरडरडराऐआ नहे लायो हे नानु हंगळाम मनखाम हे लेवू एक आदमी हे रमेस आमहतया हे लेवू हे रमेस उजाड़ीपणो एक नवो पायो एक हकलो जामगाँ लाओ हे लेवू एक हकलो लोण हे नानु हंगळाम एक नवो पाहकट लायो काले नवो घोण लायो नहे हे लेवू हे रमेस उजाड़ीपणो करतो हे नानु पामणा ने सोका रान्दो

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4 years ago

1/4, 5/8, 1/2

Alex777 [14]

<span>1/4, 1/2, 5/8
hope this helps :)</span>

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4 years ago

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