1.
a. 60kg, 60g, 60cg, 60mg
b. 60mg, 60 cg, 60g, 60kg
2.
a. 7000m, 70m, 7m, 0.7m
b 0.7m, 7m, 70m, 7000m
3.
a. 20 daL, 400 ml, 60 L, 5cL
b. 5 cL, 60 L, 400 ml, 20 daL
hope this helps :)
ANSWER
EXPLANATION
The length of the two chords in the diagram are the same because equal chords are equal distance from the center.
We can see that the two chords are all 12 units from the center.
The line from the center meeting the chords at right angles bisects these chords.
Therefore
6x - 2y = 15
2y = 6x - 15
y = 3x - 7.5
slope = 3
answer
4. slope = 3 (last choice)
M(x, y) = ((x1 + x2)/2, (y1 + y1)/2); where (x1, y1) and (x2, y2) are the coordinates of G and H respectively.
M(4, 3) = ((5 + x2)/2, (-6 + y2)/2)
(5 + x2)/2 = 4 and (-6 + y2)/2 = 3
5 + x2 = 4 * 2 = 8 and -6 + y2 = 3 * 2 = 6
x2 = 8 - 5 = 3 and y2 = 6 + 6 = 12
x2 = 3 and y2 = 12
Therefore, the coordinates of H is (3, 12)
The coach's errors are;
- Wrong conversion when converting hour to seconds
- The wrong conclusion since Eliza was running fast enough at a speed of 34ft/s compared to 8.8ft/s
<h3>What is speed?</h3>
Speed is defined as the ratio of the time distance travelled by the body to the time taken by the body to cover the distance.
Given the speed that Aliza needs to run in order to exceed her fastest time in a race = 8.8 feet per second
If her coach determines that she is running at an average rate of 5.8 miles per hour, we need to first convert the speed her coach assumed to feet per second
Convert 5.8miles to feet per second
According to the coach's conversion
This shows that 5.8mi/hr is equivalent to 34.0ft/s according to the coach conversion rate.
From the coach's calculation, we see that the coach made the first error by using 60s as 1hr instead of 3600s as 1hr
The coach also made an error by saying Eliza is not running fast enough to exceed her fastest time. We can see that Eliza was running fast enough since her speed at 34ft/s exceed 8.8ft/s.
Hence the second error was a wrong conclusion made by the coach.
To know more about Speed follow
brainly.com/question/6504879
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