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AlexFokin [52]
3 years ago
7

Which rational expression has a value of 0 when x = -2?

Mathematics
1 answer:
katrin [286]3 years ago
4 0
The answer is D. 2x - 4/x^2- 4
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How long would it to drive 8.5 miles at 22 miles mile per hour?
Vitek1552 [10]
Time = Distance / Speed     
T = 8.5 miles/ 22 miles = 0.3863

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A gym charges a $50 activation fee and $17 per month for a membership. If you spend $356, for how many months do you have a gym
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18 months bc 356-50=306/17=18                                  
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There are 3 adults for every 5 children at the party. How many adults are there if there are 35 children?
inysia [295]

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8 0
2 years ago
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HELP ASAP!! Identify the matrix transformation of ΔPQR, which has coordinates P(−5, −2),Q(−6, −3), and R(−2, −3), for reflection
podryga [215]

Answer:

Matrix transformation = \left[\begin{array}{ccc}-1&0\\0&1\end{array}\right]

Vertices of the new image: P'= (5,-2), Q'= (6,-3), R'= (2,-3)

Step-by-step explanation:

Transformation by reflection will produce a new congruent object in different coordinate. Reflection to y-axis made by multiplying the x coordinate with -1 and keep the y coordinate unchanged. The matrix transformation for reflection across y-axis should be: \left[\begin{array}{ccc}-1&0\\0&1\end{array}\right].

To find the coordinate of the vertices after transformation, you have to multiply the vertices with the matrix. The calculation of the each vertice will be:

P'= \left[\begin{array}{ccc}-1&0\\0&1\end{array}\right] \left[\begin{array}{ccc}-5\\-2\end{array}\right]= (5,-2)

Q'= \left[\begin{array}{ccc}-1&0\\0&1\end{array}\right] \left[\begin{array}{ccc}-6\\-3\end{array}\right]= (6,-3)

R'= \left[\begin{array}{ccc}-1&0\\0&1\end{array}\right] \left[\begin{array}{ccc}-2\\-3\end{array}\right]= (2,-3)

3 0
3 years ago
Find the difference between the square of 18 and the square of 9
NemiM [27]

Answer:

18 x 9 = 162

Step-by-step explanation:

7 0
2 years ago
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