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bearhunter [10]
3 years ago
9

I think im right can anyone confirm that but if im not please tell me

Mathematics
2 answers:
EleoNora [17]3 years ago
6 0

Answer:

Step-by-step explanation:

f(x) = x²-8x-20

a= 1

a >0 so...

-parabola opens up

-vertex is a minumum

Minimum because parabola opens up !

____ [38]3 years ago
4 0

Answer:

Your answer is incorrect. Answer choice is B: Minimum because the parabola opens up.

Step-by-step explanation:

You almost got it right, it is minimum, but the parabola opens up.

A you can see the minimum is plotted at the spaces (4, -36)

The parabola is opening upwards.

Hope this helps please mark brainliest :)

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There is 100 people in each train car so how many people are they in each train there is ten cars in each train and thirty train
snow_tiger [21]

Information given:

- <u>100 passengers in each train car</u>

- <u>10 train cars total</u>

- <u>30 trains total</u>

<em>So we are trying to find the total number of passengers on all 30 trains?</em>

<u />

Step-by-step:

100 x 10 = <u>1,000 passengers per train</u>

1,000 x 30 = <u>30,000 passengers total within the 30 trains</u>

Answer: <u>30,000 passengers</u>

<em>Hopefully this answered your question :)</em>

6 0
3 years ago
Please help me
Andrej [43]
B 2/3

Solution

6÷9= 2/3
5 0
3 years ago
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Jackie runs and dances for a total of 55 minutes every day. She dances for 25 minutes longer than she runs.
AlladinOne [14]

9514 1404 393

Answer:

  A: x + y = 55; y - x = 25

  B: 15 minutes running

  C: no

Step-by-step explanation:

<h3>Part A:</h3>

The two equations relate to the total number of minutes, and to the difference specified in the problem statement.

  x + y = 55 . . . . . . total time is 55 minutes

  y = x + 25 . . . . . . dances 25 minutes longer

__

<h3>Part B:</h3>

We can substitute for y in the first equation to find the value of x, the time spent running.

  x + (x +25) = 55

  2x = 30 . . . . subtract 25

  x = 15 . . . . . . divide by 2

Jackie spends 15 minutes running each day.

__

<h3>Part C:</h3>

The value of y from is found using the second equation:

  y = x +25 = 15 +25 = 40

Jackie <u>will not spend 45 minutes dancing</u> if she meets the requirements on times.

5 0
2 years ago
What number is 10 times greater than 2?
Vladimir79 [104]
You would do 10 x 2 and you would get 20
7 0
3 years ago
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I need help with question number 3.
bezimeni [28]

Answer:

F

Step-by-step explanation:

if you put 6 red apples and 7 green apples in each basket then you will have 6 identical baskets of 6 red apples and 7 green apples.

5 0
3 years ago
Read 2 more answers
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