Answer:
what's the question i need more info
Equation = a² + b² = c²
a = 80
b = 39
c = Diagonal
a² + b² = c²
80² + 39² = c²
6400 + 1521 = c²
c² = 7921
c = √7921
c = 89
Answer = 89 units
Answer: 2
Step-by-step explanation: so just plug in the numbers first 3(4)-2(-1)-9+3(-1)
then easy just solve remember two negatives equal a positive so 3 times the 4 is 12 and then -2 and -1 is just a positive 2 then minus the 9 and then add -3 because a positive and a negative is a negative and written out that all is 12+2-9+(-3) then it's 14-9 which is 5 then 5+ (-3) is positive 2 so boom lol I hope this helps! let me know if you need any more help! :')
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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9) We need to find the limit as x approaches 2 of f(x) - g(x).
When we are approaching a certain value, we are essentially finding values that are infinitesimally approaching x = 2, to the point where we find the exact value when x hits 2.
Thus, by substituting x = 2 into f(x) - g(x), we are finding the value at which the functions' difference hits x = 2.
Every other question repeats this process, so by applying the above process, your answers should come out smoothly.
Let me know if you need any more assistance, and I can guide you through them.