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sergiy2304 [10]
3 years ago
13

A square purple rug has a red square in the center. The side length of the red square is X inches. The width of the purple band

that surrounds the Red Square is 10 inches. What is the area of the purple band?
Mathematics
1 answer:
Blababa [14]3 years ago
6 0
The area of the orange square rug (including the yellow square) is 10*10=100 square inchesthe area of the orange square rug without the yellow square is 100 minus the area of the yellow squarethe area of the yellow square is x*x=x2therefore the area is (100-x2) square inches
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Answer:

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dlinn [17]
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Someone help! It is urgent!!!
djverab [1.8K]

Answer:

a. f(-1)=12

b. f(2t)=16t²-6t+5

c. f(t-2)=4t²-19t+27

Step-by-step explanation:

For a, b, c, we are given an input. We plug that into f(x) to find our answers.

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f(-1)=12

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

b. f(2t)=16t²-6t+5

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

c. f(t-2)=4t²-19t+27

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f(t-2)=4(t²-4t+4)-3t+6+5

f(t-2)=4t²-16t+16-3t+6+5

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7 0
2 years ago
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We need to  apply the chain rule.

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If y = f(u) and u is a function of x then

dy/dx = dy/ du * du/dx

Here u = x^2  and y = cos-1(u)

du/dx = 2x

so dy/dx = d(cos-1(x^2) dx = dy/du * du/dx


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= -2x / √(1 - (x^2)^2)

= -2x / √(1 - x^4)

I hope this helps. but if not. you might like to employ the formulae in the question - The square boxes contain the 'u' s in my answer. These formulae are equivalent to my explanation.

6 0
2 years ago
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