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Ierofanga [76]
3 years ago
8

Y=-0.5x^2+25x-150.5

Mathematics
1 answer:
makkiz [27]3 years ago
5 0
There you answer
It was hard for me to get it
Have a good day

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Joanie watched 1 3 of a movie in the morning, and she watched some more at night. By the end of the day, she still had 2 5 of th
saw5 [17]

Answer:Joanie watched 4/15 of the movie  at night

Step-by-step explanation:

Let total amount of movie to watch = 1 whole since we are dealing with fractions

Amount of movie watched in the morning = 1/3

Amount watched at night = x

Amount remaining= 2/5

so that  Total amount of movie to watch - Amount watched in morning and night = Amount remaining to watch

1 - ( 1/3 + x ) = 2/5

1- 2/5 = 1/3 + x

3/5 =1/3 + x

3/5 - 1/3 = x

9- 5/15 = x

x= Amount watched at night = 4/15

5 0
3 years ago
PLEASE HELP!!!<br> If f(x) = -2x^2 + x - 5, what is f(3)?
kow [346]

Answer:

  • <u>f(3) = -10</u>

Step-by-step explanation:

<u>Given</u>

  • f(x) = -2x² + x - 5

<u>Solving</u>

  • To find f(3), substitute x = 3 in the function
  • ⇒ f(3) = -2(3)² + (3) + 5
  • ⇒ f(3) = -2(9) + 8
  • ⇒ f(3) = -18 + 8
  • ⇒ <u>f(3) = -10</u>
4 0
2 years ago
Read 2 more answers
Need help asap with these
IRISSAK [1]

Answer:

1. 6n - 15

2. x + 10

3. -4d + 15

4. true, associative property

5. distributive, commutative

Step-by-step explanation:

1. distribute 3/4 into the parentheses, so multiply 3/4 * 8 and 3/4 * -20

2. distribute the 2 into the parentheses so multiply 2 * 3x and 2 * 5, then combine like terms

3. distribute -3 into the parentheses so -3 * 4D and -3 * -5 then add like terms

4. add like terms on both sides of the equal sign and you get 10x on both sides. this is the associative property because it doesn't matter what's inside or outside the parentheses you get the same answer no matter how you add them up

5. the first part is distributive because you distributed the three into the parentheses and the second part is commutative because you switch them around and you can get the same answer

6 0
3 years ago
What is 3x 2 2/3 x 1/3
avanturin [10]

Answer:

2.66

Step-by-step explanation:

8 0
2 years ago
Mr. Jones feeds his big cat 1/3 of a can of cat food and he feeds his small cat half
sasho [114]

Answer:

1/2

Step-by-step explanation:

1/3 + 1/6 = 1/2

5 0
3 years ago
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