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Ainat [17]
3 years ago
12

Each side of a square is increasing at a rate of 4 cm/s. at what rate is the area of the square increasing when the area of the

square is 16 cm2?
Mathematics
1 answer:
Iteru [2.4K]3 years ago
7 0
Confusing question but I would get 0, as if you have 4cm, that squared = 16cm^2. Therefore if it were increasing anymore, then you would not be able to get a value of 16.
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một hình trụ có tổng chu vi một đáy và chiều cao là 30cm. Với bán kính nào thì hình trụ có thể tích lớn nhất ?
Hatshy [7]

Answer:

5 10ths

Step-by-step explanation:

8 0
2 years ago
Find the area of the figure
Anon25 [30]

Answer:

89  sq meters

Step-by-step explanation:

The whole rectangle  13x8 = 104

Now subtract the white triangle

(6x5)/2 = 15

104-15 = 89

8 0
2 years ago
4) Astronomers have notice that the number of visible sunspots varies from a
Alex

Answer:

Choice D is correct

Step-by-step explanation:

trust me, brainliest pls?

6 0
3 years ago
I need helppppppp plzzzzz
Norma-Jean [14]

Answer:

Step-by-step explanation:

4x + 15 = 3

Subtract 15 from both sides

4x + 15 - 15 = 3 - 15

4x = -12

Divide both sides by 4

4x/4 = -12/4

x = -3

Check:

substitute x = -3 in the LHS of the  equation,

4*(-3) + 15 = -12 + 15

                 = 3 = RHS

6 0
3 years ago
For which value of a does the following system of equations have no solution? -x+6y=7 , -5x+10ay=32
dlinn [17]

Remark

If the lines are parallel, there are no solutions to the system of equations. Start with the equation you know the most about.

x + 6y = 7                Subtract x from both sides

x - x + 6y = 7 - x      Combine

6y =  - x + 7             Switch and divide by 6

y = -x / 6 + 7/6

The general equation for a line is y = mx + b where m is the slope of the line.

m = - 1/6

================

Now look at the second equation

10ay - 5x = 32               Add 5x to both sides

10ay = 5x + 32              Divide by 10a

y = (5/10a)x + 32/(10a)  

===============

Now you must make

5/10a = - 1/6                     Cross Multiply

5* 6 = - 10a * 1

30 = - 10a                        Divide by - 10

a = 30 / - 10

a = - 3

So these two equations will have no solution when a = - 3



8 0
3 years ago
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