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valkas [14]
2 years ago
5

Which of the following is a perfect square trinomial?

Mathematics
1 answer:
Bezzdna [24]2 years ago
3 0

Answer:

D.~4x^2-20xy+25y^2

Step-by-step explanation:

4x^2-20xy+25y^2\\\\=(2x)^2-2\cdot 2x \cdot 5y+(5y)^2\\\\=(2x-5y)^2

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Find the image of A(6, -4) after it is reflected over the line y = - 2, then reflected over the line x = 1. (-4, 6) (-4, 0) (-4,
olchik [2.2K]

Answer:(-4,0)

Step-by-step explanation:

Given

Point A (6,-4)

Reflection of Point A about line y=-2 is

A' (6,0)

If any Point is reflected about any line y=constant then its x coordinate remains same

Now reflection of Point A' about x=1 is

A'' (-4,0)

If any point  is reflected about line x=constant then its y coordinate remains same

7 0
3 years ago
Please help the first one to answer the question gets brainlyest
Alekssandra [29.7K]

Answer:

36: 1/4 unit cubes

Step-by-step explanation:

Hope this helps

4 0
3 years ago
Someone answer 1-8 please! (Please do help!)<br> QUESTION: Find each quotient.
Zinaida [17]
Sorry, but I generally respond to only 1 or 2 problems when someone gives me a long list of homework.  It would take you just a little longer to post one problem at a time.
                                                                             75                 5       -375
Let's look at #5:     75 / (-1/5)   is the same as  -------- = 75 * ------ = ---------                                                                                         -1                -1         1
                                                                              ---
                                                                                5

and this is equivalent to -375 (answer to #5)
6 0
3 years ago
URGENT 15 POINTS!!!!What is the solution of the system?
ohaa [14]
The elimination method is a sufficient way to solve problems. 

2x+y= 20
6x-5y=12

Add 5y to the one equation.

2x+6y= 20
6x= 12

Subtract 2x from both sides. 

6y= 20
4x= 12

Divide 6 by 20. 
y= 3.3 

Divide 4 by 12.
x= 3

I hope this helped you!

Brainliest answer is appreciated!
8 0
3 years ago
Read 2 more answers
What percent of 78 is 16?
Phantasy [73]

Answer:

78/16=

39/8=

19.5/4= 4.80805

7 0
3 years ago
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