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Lady_Fox [76]
3 years ago
7

Please help!

Mathematics
2 answers:
kondaur [170]3 years ago
5 0
The perimeter in this case will be:

p=2x+y  and we are told that p=84yd so

2x+y=84

y=84-2x

Now for the area:

A=xy, and using y found above in this gives you:

A=x(84-2x)

A=84x-2x^2  now taking the derivatives gives you the velocity and acceleration of the area function...

dA/dx=84-4x and d2A/dx2=-4

Since the acceleration is a constant -4, when velocity is equal to zero it is at the absolute maximum value for the area function...

dA/dx=0 only when 84=4x, x=21

So the maximum possible area will occur when x=21

A(21)=84(21)-2(21^2)

A(21)=882 yd^2  
musickatia [10]3 years ago
4 0

Answer:

882 yd^2

Step-by-step explanation:


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At a local grocery store, bananas were on sale. Green bananas were priced at $14.00 and yellow bananas were priced at $12.00. Sa
garri49 [273]

Answer:

Sabrina bought 6 yellow bananas and 3 green bananas

Step-by-step explanation:

Let

Green bananas = x

Yellow bananas = y

Green bananas = $14.00

Yellow bananas = $12.00

Total cost = $114.00

x + y = 9 (1)

14x + 12y = 114 (2)

From (1)

x = 9 - y

Substitute x = 9 - y into (2)

14(9 - y) + 12y = 114

126 - 14y + 12y = 114

- 14y + 12y = 114 - 126

-2y = -12

Divide both sides by -2

y = -12 / -2

= 6

y = 6

Substitute y = 6 into (1)

x + y = 9

x + 6 = 9

x = 9 - 6

= 3

x = 3

Sabrina bought 6 yellow bananas and 3 green bananas

3 0
3 years ago
One year, the population of a city was 359,000. Several years later it was 355,410. Find the percent decrease.
Serggg [28]

Answer:1%

Step-by-step explanation:

7 0
3 years ago
18
sweet-ann [11.9K]

Answer:

The 1st, 2nd and last statement on the +3 side and the rest three statements on the -3 side

6 0
3 years ago
Whats the answer please |-5|+3+6
Colt1911 [192]

the absolute value is the distance from zero and is marked by the | | signs. The distance from zero for -5 is 5 since it is 5 away from 0. If we rewrite this question, we have 5+3+6 which equals 14. So 14 is your answer.

8 0
4 years ago
One angle of a triangle measures 94°. The other two angles are congruent.
Nutka1998 [239]

Answer:

43 is the answer

Step-by-step explanation:

i just added till i got it

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