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Lilit [14]
4 years ago
11

Will you help me?

Mathematics
1 answer:
Volgvan4 years ago
8 0

Answer:

The length side of the original square banner was 9 ft

Step-by-step explanation:

Let

x-----> the length side of the original square banner

we know that

The new area of the banner is equal to

91=(x+4)(x-2)

Solve for x

91=(x+4)(x-2)\\ \\91=x^{2}-2x+4x-8\\ \\x^{2}+2x-99=0

Solve the quadratic equation by graphing

The solution is x=9 ft

see the attached figure

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Which of the following statements is not true? The product of a negative number and 0 is 0. The quotient of a negative number an
Ugo [173]

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8 0
3 years ago
Read 2 more answers
Item 3
miss Akunina [59]

Answer:

By an online search, i found that the options are:

Option A. A(10)

Option B. A(11)-A(9)

Option C. A(10)/10

Option D. A’(10)

Let´s start by defining the concept of a derivative.

When we have a function f(x), the derivative, f´(x), is a measure of the rate of change of f(x) with respect to the variable x.

Then if A(t) represents the area covered by the oil, A´(t) is the rate of change of this area as a function of t.

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8 0
3 years ago
In the figure find the value of x and y
otez555 [7]

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x = 8°, y = 86°

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9. x + 5y = 0
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