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alexgriva [62]
3 years ago
5

The two rectangles shown below have the same

Mathematics
1 answer:
kati45 [8]3 years ago
7 0

9514 1404 393

Answer:

  • x = 3
  • length = 9
  • width = 3

Step-by-step explanation:

The sum of length and width is half the perimeter. If the perimeter is the same, so will be the sum of length and width:

  7 + 5 = x + (4x -3)

  15 = 5x . . . . . . . add 3, simplify

  3 = x

The value of x is 3.

The length of Rectangle B is 4(3)-3 = 9 inches.

The width of Rectangle B is 3 inches.

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F(x) = -1/2x^2 + 3/2x - 2 I need to find the zeros​
Pachacha [2.7K]

Answer:

{-1, 4}

Step-by-step explanation:

In the given f(x) = -1/2x^2 + 3/2x - 2

set f(x) = 0 and then multiply all the numeric terms by -2 to remove the fractions:

f(x) = -1/2x^2 + 3/2x - 2 = 0  =>  1x^2 - 3x - 4 = 0  

This factors into (x - 4)(x + 1) = 0, whose roots are {-1, 4}.  These are the zeros.

4 0
3 years ago
Write a polynomial equation of degree 4 that has the following roots : -1 repeated three times and 4
Radda [10]

Answer:

x^4 -x^3 -9x^2 -11x -4

Step-by-step explanation:

We can use the zero product property

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(x- -1)(x- -1)(x- -1) ( x-4) since the root -1 is repeated 3 times and 4 is a root

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Foil the first two terms  and the last two terms

(x^2 + 2x+1)( x^2 -3x-4)

Foil again

x^4 -3x^3 -4x^2 +2x^3 -6x^2 -8x +x^2 -3x-4

Combine like terms

x^4 -x^3 -9x^2 -11x -4

6 0
3 years ago
After the expression x^10 ^3/5 is simplified as much as possible, x is raised to what exponent?
Marat540 [252]
 <span>x^(10*[ 3/5 ] ) = x^6</span><span>

</span>
3 0
3 years ago
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I need help with number 18
horrorfan [7]

40 degrees, because ΔABC is isoceles, so angles B and C are equal.

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3 years ago
1 foot = 12 inches<br> 1 inch = 2.5 centimeters<br> change 5 feet and 10 inches to centimeters
jolli1 [7]

Answer:

The answer should be 177.8 cm.

Step-by-step explanation:

4 0
3 years ago
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