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Luba_88 [7]
3 years ago
15

A composition of transformations maps ∆KLM to ∆K"L"M". The first transformation for this composition is _______, and the second

transformation is a translation down and to the right
A. a 90° rotation about point L
B. a 270° rotation about point L
C. a 90° rotation about point P
D. a 270° rotation about point P​

Mathematics
2 answers:
Tcecarenko [31]3 years ago
8 0

Answer: a 270 rotation about point p

Step-by-step explanation:

Nadusha1986 [10]3 years ago
3 0

Answer:

Option D.

Step-by-step explanation:

Since MK and M'K' are at 90° after transformation which means MK is rotated either 90° clockwise about P or 270° counterclockwise about P.

So the composition of transformations which maps ΔKLM to ΔK"L"M", the first transformation for this composition is rotation of 270° counterclockwise about the point P.

And the second transformation is a translation down and to the right.

"Option D. a 270° rotation about point P" is the answer.

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Which of the following sentences could not be used to represent the equation = 14?
Andreas93 [3]

Answer:

i think it's C

Step-by-step explanation:

process of elimination

Hope this helps my dude! :- )

3 0
3 years ago
A sample of 10 adult elephants had an average weight of 12,556 pounds. The standard deviation
kirill [66]

Answer:

The 99% confidence interval of the population mean for the weights of adult elephants is between 12,475 pounds and 12,637 pounds.

Step-by-step explanation:

We have the standard deviation for the sample, so we use the t-distribution to solve this question.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 10 - 1 = 9

99% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 9 degrees of freedom(y-axis) and a confidence level of 1 - \frac{1 - 0.99}{2} = 0.995. So we have T = 3.25

The margin of error is:

M = T*s = 3.25*25 = 81

In which s is the standard deviation of the sample.

The lower end of the interval is the sample mean subtracted by M. So it is 12,556 - 81 = 12,475 pounds

The upper end of the interval is the sample mean added to M. So it is 12,556 + 81 = 12,637 pounds.

The 99% confidence interval of the population mean for the weights of adult elephants is between 12,475 pounds and 12,637 pounds.

6 0
3 years ago
Diego measured the length of a pen to be 22 cm. The actual length of the pen is 23 cm. Which of the following is closest to the
Law Incorporation [45]

Answer: 4.3%

Step-by-step explanation:

100(23 -23)/23

3 0
2 years ago
At a table tennis tournament, two games went on for a total of 32 minutes. One game took 12 minutes longer than the other. How l
kotykmax [81]

Answer: game 1  10 mins game 2 22

Step-by-step explanation:

5 0
3 years ago
Determine if the solution set for the system of equations shown is the empty set, contains one point or is infinite.
ankoles [38]
I hope this helps you



1)



x= -2y


2. (-2y)+4y=0


0=0


2)


x+2x= -3


x=-1


y= -2


3)


7x+2x+2=4



9x=2


x=2/9


y=2/9+1


y=11/9
4 0
3 years ago
Read 2 more answers
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