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sammy [17]
3 years ago
11

="TexFormula1" title=" \frac{1}{x^{2} - 1 } - \frac{1}{x - 1} " alt=" \frac{1}{x^{2} - 1 } - \frac{1}{x - 1} " align="absmiddle" class="latex-formula">
​
Mathematics
1 answer:
Degger [83]3 years ago
5 0

Answer:

-x/x^2-1

Step-by-step explanation:

-x^2+x/x^3-x^2-x+1

x(-x+1)/(x+1)(x-1)(x-1)

-x/x^2-1

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Nathan measured a line to be 7.4 inches long. If the actual length of the line is 7.2 inches, then what was the percent error of
Verdich [7]

Answer:

2.8%

Step-by-step explanation:

(7.4 - 7.2) / 7.2 =

0.2 / 7.2 =

2.7777777777778%

3 0
3 years ago
F. Rotated 90° about (0,0)
ASHA 777 [7]

Answer:

see explanation

Step-by-step explanation:

Under a clockwise rotation about the origin of 90°

a point (x, y ) → (y, - x ) , then

R(2, - 1 ) → R'(- 1, - 2 )

S(4, 0 ) → (0, - 4 )

T(1, 3 ) → T'(3, - 1 )

7 0
3 years ago
Work out the angle of x
Amiraneli [1.4K]

Answer:

a)

Cos60=1/2=0.5

b)

cos60=4/x

0.5=4/x

0.5x=4

0.5x/0.5=4/0.5

x=8

3 0
3 years ago
WILL GIVE BRAINLIEST
dolphi86 [110]

Answer:

12

Step-by-step explanation:

1. Substitute each letter with the numbers given

3(14) + 3(10) / 6

42 + 30 = 72 / 6 = 12

7 0
3 years ago
Name the line of reflection used to map each pre-image to its image.<br> Please help
maks197457 [2]

Answer:

Step-by-step explanation:

From the picture attached,

9). When pre-image KLMN is a reflected across x = -2, we get image K'L'M'N'.

    Therefore, line of reflection will be x = -2

10). In this picture line of reflection which passes through origin (0, 0) and slope = 1 will be,

y = x.

11). Since, all the points of image and preimage points are equidistant from x-axis, line of reflection will be x-axis or y = 0.

12). Line passing through midpoint of the line joining BB' will be the line of reflection.

Coordinates of B → (5, 3)

Coordinates of B' → (5, 7)

Coordinates of BB' → (\frac{5+5}{2},\frac{3+7}{2}) → (5, 5)

Therefore, line of reflection will be y = 5.

13). Coordinates of G → (2, 5)

     Coordinates of G' → (-2, 5)

     Midpoint joining the segment GG' → (\frac{2-2}{2},\frac{5+5}{2}) → (0, 5)

     Therefore, line of reflection → x = 0

14). Line of reflection passing through (0, 0) and slope = -1

     y = -x

3 0
3 years ago
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