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Gekata [30.6K]
3 years ago
9

F(x) = - x2 + 2x; {–1, 2, 3}

Mathematics
1 answer:
soldi70 [24.7K]3 years ago
3 0
A is the correct answer just put the values from the domain and see for yourself
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The admission fee at an amusement park is $2.00 for children and $6.80 for adults. On a certain day, 388 people entered the park
san4es73 [151]

Answer: 188 children and 200 adults were admitted

Step-by-step explanation:

Let x represent the number of children that were admitted.

Let y represent the number of adults that were admitted.

On a certain day, 388 people entered the park. It means that

x + y = 388

The admission fee at the amusement park is $2.00 for children and $6.80 for adults. The admission fees collected on that day totaled $1736. It means that

2x + 6.8y = 1736- - - - - - - - - - 1

Substituting x = 388 - y into equation 1, it becomes

2x + 6.8y = 1736

2(388 - y) + 6.8y = 1736

776 - 2y + 6.8y = 1736

- 2y + 6.8y = 1736 - 776

4.8y = 960

y = 960/4.8

y = 200

x = 388 - y = 388 - 200

x = 188

4 0
3 years ago
Write the expanded form for this expression <br><br> -1/2(y - x)
grin007 [14]

Answer:  =-1/2x+-1/2y

Step-by-step explanation:

5 0
2 years ago
Use mental math to find a solution for 2/8= 3/x+2
asambeis [7]

Answer:

2/3 + 3/5 = 19

15

= 14

15

≅ 1.266667

Step-by-step explanation:

Add: 2

3

+ 3

5

= 2 · 5

3 · 5

+ 3 · 3

5 · 3

= 10

15

+ 9

15

= 10 + 9

15

= 19

15


8 0
3 years ago
van budgets 12 a day for groceries for weekdays and 15 a day for weekends. write an expression in simplest form to show his groc
Ksenya-84 [330]
The budget of Van for groceries for 1 week is:

12 $ (per a weekday) * 5 (weekdays) + 15 $(per a weekend day) *2 (weekend days) = 60$ +30$ = 90$

The budget of Van for w weeks is:

90 $ (per week) * w (weeks) = 90w dollars.


Answer: 90w $
6 0
3 years ago
Solve for x.<br> 109= -x + 267<br> X=<br> x 5<br> ?
SOVA2 [1]

Answer:

x=158

Step-by-step explanation:

109=-x+267

-267     -267

-158=-x

x=158

(also i noticed part of your question says x=(?)*5 and 31.6*5 is 158 so that would be 31.6)

7 0
2 years ago
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