Answer:
y=8x-6
Step-by-step explanation:
The average time of the 20 athletes who did not qualify for the final is 11.2 seconds .
<u>Step-by-step explanation:</u>
Here we have , Twenty-eight athletes participate in a 100-meter race. The time of each athlete is measured during the qualification round. The average time is 11 seconds. The 8 athletes with the fastest time qualified for the final. The average time of these 8 athletes is 10.5 seconds. Let's have equations for this:
where 
are athletes
⇒ 
⇒ 
⇒ 
⇒ 
, where m is average time of the 20 athletes who did not qualify for the final.
⇒ 
⇒ 
⇒ 
∴ The average time of the 20 athletes who did not qualify for the final is 11.2 seconds .
We have to wright 100,000 using exponents. The exponent of number shows how many times you use the number in multiplication.
For example: 64 = 8², because: 64 = 8 · 8or: 64 = 4³, because 64 = 4 · 4 · 4 In this case:100,000 = 10 · 10 · 10 · 10 · 10Therefore:100,000 = 10^5 ( or "10 to the fifth power" )Answer: 10^5.
Answer:
40 students play all three games .
Step-by-step explanation:
You have universal and it says everyone likes all three games so your union is same as universal and there is no complement or any one who didn't like any games so use formule of universal = n A + n B + n C - n only interaction or who likes any two .Solve it and you will get your answer
