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Anika [276]
2 years ago
15

Help me please help help help help

Mathematics
1 answer:
Elena L [17]2 years ago
4 0

Answer:

area of trapezium:

a+b divided by 2, times by the height.

so its 8+20=28.

28/2=14.

14*14=196.

area=196

Step-by-step explanation:

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Solve <br><br> 0.6(10n + 25) = 10 + 5n ?
Pachacha [2.7K]

Answer: x=-5

<u>Simplify both sides of the equation</u>

(0.6)(10n)+(0.6)(25)=10+5n(Distribute)\\6n+15=10+5n\\6n+15=5n+10

<u>Subtract 5n from both sides</u>

6n+15-5n=5n+10-5n\\n+15=10

<u>Subtract 15 from both sides</u>

n+15-15=10-15\\n=-5

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In a class of 29 students, 19 are female and 14 have an a in the class. there are 8 students who are male and do not have an a i
vodomira [7]

Answer:

5/ 19 ≈ 0.26 = 26%

Step-by-step explanation:

given: student is female. there is a 100% chance that the student is female

probability we want = (favorable outcomes) / (total outcomes)

total outcomes = 19 because there are 19 female students and the student must be female

favorable outcomes = 19 - 14 = 5 females who do not have an A in the class

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Mark is treating his family to ice cream. He buys 4 sundaes and 3 cones for a total of $26. Brian also buys ice cream for his fa
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Given a rectangle with a perimeter of 24 inches, why dimensions maximize the area?
Pepsi [2]

Answer:

The dimensions are 6 by 6

Step-by-step explanation:

Calculus answer:

2x +2y= 24

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2x=24-2y

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(12-y)(y)= 12y- y^2

the Derivative is = 12-2y

Then set that equal to zero 0=12-2y

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Confirm that 6 is a maximum by using a wiggle graph

wiggle graph -∞<---inc--6---dec-->∞

6 is a maximum

plug into original equation

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x=6

----------------------------------------------------------------------------------------------------

y=6

x=6


     



5 0
3 years ago
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