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natali 33 [55]
2 years ago
10

Which statement explains how to correct the error that was made?

Mathematics
1 answer:
Svetradugi [14.3K]2 years ago
4 0

Answer:

I believe that this is the best answer mark brainliest if it is

Step-by-step explanation:

The square root property should have been applied to both complete sides of the equation instead of to select

variables.

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Help me and I’ll give you brainliest
mash [69]

Answer:

124

Step-by-step explanation:

5 0
2 years ago
Help! in 20P9 what does the 9 represent?
Alex777 [14]

Answer:

Step-by-step explanation:

Good question. It is important to know the answer.  

The 9 means that there are a total of 20 objects. You want to select just 9 of them.

The situation is well described by C.

6 0
3 years ago
In the diagram, point D is the center of the medium-sized circle that passes through C and E, and it is also the center of the l
mestny [16]

9514 1404 393

Answer:

  5/8

Step-by-step explanation:

The area of the smaller circles is proportional to the square of the ratio of their diameters. The two smallest circles have diameters equal to 1/4 the diameter of the largest circle. Hence their areas are (1/4)^2 = 1/16 of that of the largest circle.

Similarly, the medium circle has a diameter half that of the largest circle, so its area is (1/2)^2 = 1/4 of the are of the largest circle.

The smaller circles subtract 2×1/16 +1/4 = 3/8 of the area of the largest circle. Then the shading is 1-3/8 = 5/8 of the area of the largest circle.

3 0
3 years ago
The 8th and 20th terms of an arithmetic sequence are 20 and 56 respectively. ​What is the 1st term of the sequence.
Ostrovityanka [42]

Answer:

<h3>             a₁ = -1</h3>

Step-by-step explanation:

a_n=a_1+d(n-1)\\\\a_8=a_1+d\cdot7\\\\a_{20}=a_1+d\cdot19\\\\a_{20}-a_8=a_1+19d-(a_1+7d)=12d\\\\56-20=2d\\\\12d=36\\\\d=3\\\\\\ a_1+3\cdot7=20\\\\a_1=20-21=-1

6 0
3 years ago
Is y=x(x-1) a function
Fed [463]
Yes it is a function
Y=x(x-1)
X(x-1)
X to the 2nd power -1x
Hope that’s helps
4 0
3 years ago
Read 2 more answers
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