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bija089 [108]
3 years ago
11

Answerrrrrrrrrr: )?

Mathematics
1 answer:
enot [183]3 years ago
8 0

Answer:

I think the answer is D

Step-by-step explanation:

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Triangle is reflected across the y-axis and then dilated by a factor of centered at the origin. Which statement correctly descri
love history [14]

Answer:

  A.  The reflection preserves the side lengths and angles of triangle . The dilation preserves angles but not side lengths.

Step-by-step explanation:

Reflection is a rigid transformation. It preserves both angles and side lengths. Dilation preserves angles, but changes all lengths by the same scale factor.

<h3>Application</h3>

The described triangle was subject to reflection, which preserves angles and lengths. It was also subject to dilation, which preserves angles, but not lengths.

The appropriate description is that of choice A.

4 0
1 year ago
Find two numbers if their sum is 6.1 and their difference is 1.6
Radda [10]
For this case, the first thing we must do is define variables:
 x: unknown number (1)
 y: unknown number (2)
 We now write the equations that model the problem:
 their sum is 6.1:
 x + y = 6.1&#10;
 their difference is 1.6:
 x - y = 1.6&#10;
 Solving the system we have:
 We add both equations:
 x + x = 6.1 + 1.6&#10;&#10;2x = 7.7&#10;&#10;x = 7.7 / 2&#10;&#10;x = 3.85
 Then, we look for the value of y using any of the equations:
 x - y = 1.6&#10;&#10;y = x - 1.6&#10;&#10;y = 3.85 - 1.6&#10;&#10;y = 2.25
 Answer:
 
The numbers are:
 
x = 3.85&#10;&#10;y = 2.25
6 0
3 years ago
Read 2 more answers
For what value(s) of k is the linear system consistent? (Enter your answers as a comma-separated list.)
AleksAgata [21]

Answer:

Step-by-step explanation:

Given

6x_1-9x_2=8

9x_1+kx_2=-1

The given system is AX=B can be represented by

\begin{bmatrix}6 &-9 \\ 9 & k\end{bmatrix}\begin{bmatrix}x_1\\ x_2\end{bmatrix}=\begin{bmatrix}8\\ -1\end{bmatrix}

The given system is consistent when determinant of A is not equal to zero

|A|

|A|=6k-(-81)=6k+81

k\neq \frac{-27}{2}

i.e. system is consistent for all value of k except k=\frac{-27}{2}

R-\frac{-27}{2}

                 

4 0
3 years ago
Read 2 more answers
Given g(x) = -x + 5, solve for x when g(x) = 3.
Elan Coil [88]
Both equal g(x) so put them together

-x+5=3 then solve for x

-x=3-5
-x=-2
-2 divided by -x =2

x=2
5 0
3 years ago
In a race, 47 out of the 50 swimmers finished in less than 35 minutes. What percentage of the swimmers finished the race less th
Dmitry [639]

Answer:

94%

47*2=94

50*2=100

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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