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yKpoI14uk [10]
3 years ago
6

Please help i don't get thisD) -2≤f(x)≤9​

Mathematics
1 answer:
Eva8 [605]3 years ago
7 0

Answer:

it means, the minimum value/ lower limit and maximum value/ upper limit of the line graph along the x-axis is -2 and 9 respectively.

The graph lies between -2 and 9

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3 times a number is 54 less than the square of that number
Natasha2012 [34]

Answer:

-6

Step-by-step explanation:

3n = n² - 54

n² - 3n - 54 = 0

n² - 9n + 6n - 54 = 0

n(n - 9) + 6(n - 9) = 0

(n - 9)(n + 6) = 0

n = 9 , -6

hope this helps

8 0
2 years ago
Read 2 more answers
Tickets to a movie cost $7.25 for adults and $5.50 for students a group of friends purchased 8 tickets for $52.75 how many adult
irina1246 [14]

Answer:

The number of adults tickets and student tickets purchased is 5 and 3.

Given that,

Tickets to a movie cost $7.25 for adults and $5.50 for students.

A group of friends purchased 8 tickets for $52.75.

Here we assume the no of adult tickets and no of student tickets be x and y.

Based on the above information, the calculation is as follows:

7.25x + 5.50y = 52.75 .............(i)

x + y = 8

x = 8 - y..................(2)

Now put the x value in the equation (1)

So,  

7.25(8-y) + 5.50y = 52.75

7.25 × 8 - 7.25y + 5.50y = 52.75

58 - 1.75y = 52.75

5.25 = 1.75y

y = 3

So,  

x = 8 - 3

= 5

Therefore we can conclude that the number of adults tickets and student tickets purchased is 5 and 3.

-Hope this helps<3

4 0
2 years ago
Match the words to their definitions
Effectus [21]
Show me a picture of your
5 0
3 years ago
Read 2 more answers
Can someone please help me?
nadya68 [22]

Answer:

The answer is in the picture, hope it helps!

Step-by-step explanation:

3 0
2 years ago
Find the answer <br><br> A.<br><br> B.<br><br> C.
KATRIN_1 [288]
B. 68
I use the formula A= bh/2 it’s the same thing
8x17 = 136
136/2 = 68
6 0
3 years ago
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