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Ksju [112]
3 years ago
6

Please explain!! 20 points and I will mark brainliest

Mathematics
1 answer:
nika2105 [10]3 years ago
8 0
No, her current average is 225. She would need to score 350 points to get a 250.
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Brainliest for whoever gets this right!
r-ruslan [8.4K]

Answer:

The lines that make this up are y = 5, x = 4 and y = x so the answer is y ≤ 5, x ≥ 4 and y ≥ x.

5 0
3 years ago
Evaluate the expression when x= -3.<br><br> x2-5x-8
never [62]

Step-by-step explanation:

  • x²-5x-8

When x=-3, then

  • (-3)²-5×(-3)-8
  • 9+15-8
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4 0
3 years ago
Read 2 more answers
Three students are arguing over who can run the fastest. Student A says that she can run 2/3 mile in six minutes. Student B says
Liula [17]

Answer:

student A- can run 2/3 mile in six minutes

1/9 mile/min

student B- can run 1/2 mile in 4 minutes

Speed=1/8 mile/min

student C- can run 4/5 mile in 8 minutes

speed=1/10 mile/min

Step-by-step explanation:

5 0
3 years ago
A function g is defined by g:x→3−2sinx,for 0◦ ≤x≤A◦,where A is a constant.
Crank
<span>hmmm: g maps x onto 3-2sin(x) for all x from 0 to A degrees g(x) = 3-2sin(x) the inverse would have to be arcsin (3-x)/2, which only has a radian output between -pi and pi i believe. but this is just from memory</span>
6 0
3 years ago
How do I set this up
Mrac [35]

To justify the yearly membership, you want to pay at least the same amount as a no-membership purchase, otherwise you would be losing money by purchasing a yearly membership.  So set the no-membership cost equal to the yearly membership cost and solve.

no-membership costs $2 per day for swimming and $5 per day for aerobic, in other words, $7 per day.  So if we let d = number of days, our cost can be calculated by "7d"

a yearly membership costs $200 plus $3 per day, or in other words, "200 + 3d"

Set them equal to each other and solve:


7d = 200 + 3d

4d = 200

d = 50

So you would need to attend the classes for at least 50 days to justify a yearly membership.  I hope that helps!

5 0
3 years ago
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