Answer:
Yes
Step-by-step explanation:
If an object travels at a constant speed, then the distance traveled is directly proportional to the time spent traveling, with the speed being the constant of proportionality. The circumference of a circle is directly proportional to its diameter, with the constant of proportionality equal to π.
Answer:
Hello there! How are you doing? I am doing fine! I'll answer the question now.
So basically, to find a missing side length of a triangle you have to use Pythagorean theorem, which is A^2 + B^2 = C^2. Plug in 11^2 and 9^ = C^2 since we need to find the side length of C. 11 squared is 121 and 9 squared is 81, so you're left with, 121 + 81 = C^2. You are then left with, after adding, 102 = C^2. You then would take the square root of 202 and get 14.20 as the length of C. Now it is closet to 15 cm, so we can assume that side length of side C, would be indeed 15 cm, not 20 cm.
Hope this helped! I can help with other stuff too! And bye! :)
Step-by-step explanation:
Answer: Scalene means "a triangle that has three unequal sides"
therefore it is D
Answer:
GH > HJ
The correct symbol is " >" (greater)
Step-by-step explanation:
we know that
In the triangle GHJ applying the law of sines
substitute the given values
Isolate GH
therefore
GH > HJ
The correct symbol is " >" (greater)
Answer:
12 mph
Step-by-step explanation:
The relationship between jogging speed and walking speed means the time it takes to walk 4 miles is the same as the time it takes to jog 8 miles. Then the total travel time (0.75 h) is the time it would take to jog 1+8 = 9 miles. The jogging speed is ...
(9 mi)(.75 h) = 12 mi/h . . . average jogging speed
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<em>Check</em>
1 mile will take (1 mi)/(12 mi/h) = 1/12 h to jog.
4 miles will take (4 mi)/(6 mi/h) = 4/6 = 8/12 h to walk.
The total travel time is (1/12 +8/12) h = 9/12 h = 3/4 h. (answer checks OK)
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<em>Comment on the problem</em>
Olympic race-walking speed is on the order of 7.7 mi/h, so John's walking speed of 6 mi/h should be considered quite a bit faster than normal. The fastest marathon ever run is on the order of a bit more than 12 mi/h, so John's jogging speed is also quite a bit faster than normal. No wonder he got tired.