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Usimov [2.4K]
3 years ago
7

A circle with the equation (x + 3)2 + (y - 2)2 = 25 is reflected over the line x = 2.

Mathematics
2 answers:
muminat3 years ago
7 0
The anwser is C. <span>(x - 7 )2 + (y - 2)2 = 25</span>
zlopas [31]3 years ago
3 0
(x-7)² + (y-2)² = 25
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Which of these can be written as an equation?
Katyanochek1 [597]
Your answer would be choice b
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2 years ago
The sides of a triangle are x , x +1 , 2 x -1 and its area is x root of 10 .Find the value of x.
VARVARA [1.3K]


Ok, I'm going to start off saying there is probably an easier way of doing this that's right in front of my face, but I can't see it so I'm going to use Heron's formula, which is A=√[s(s-a)(s-b)(s-c)] where A is the area, s is the semiperimeter (half of the perimeter), and a, b, and c are the side lengths.

Substitute the known values into the formula:

x√10=√{[(x+x+1+2x-1)/2][({x+x+1+2x-1}/2)-x][({x+x+1+2x-1}/2)-(x+1)][({x+x+1+2x-1}/2)-(2x-1)]}

Simplify:

<span>x√10=√{[4x/2][(4x/2)-x][(4x/2)-(x+1)][(4x/2)-(2x-1)]}</span>

<span>x√10=√[2x(2x-x)(2x-x-1)(2x-2x+1)]</span>

<span>x√10=√[2x(x)(x-1)(1)]</span>

<span>x√10=√[2x²(x-1)]</span>

<span>x√10=√(2x³-2x²)</span>

<span>10x²=2x³-2x²</span>

<span>2x³-12x²=0</span>

<span>2x²(x-6)=0</span>

<span>2x²=0 or x-6=0</span>

<span>x=0 or x=6</span>

<span>Therefore, x=6 (you can't have a length of 0).</span>

6 0
3 years ago
Which of the following sets of numbers could represent side lengths of a right triangle?
harkovskaia [24]

Answer:

1

2

3

may be I'm ryt confirm wih some others

5 0
3 years ago
Read 2 more answers
the length of a rectangle is 8 less than twice the width. the perimeter is 38 feet. Find the length and width. someone please he
Aleksandr-060686 [28]

Answer:L=4 W=15

Step-by-step explanation:

P=2L+2W

38-8=30

If length is 8 less than twice the width and the perimeter is 38, then subtract 38-8 which is 30, then divide 30 by 2 to get 15.

P=2(4) +2(15)

P=38

7 0
3 years ago
83 tens × 2 tens =166
FinnZ [79.3K]
1 cube= 1 unit
1 Rod (Long)= 10 units
10 Rods (Longs)= 1 flat (1 flat=100 units)
10 flat =1 cube(1 cube=1000 units)
83×10= 830
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830×20= 16,600
Just wanted to add more to help you understand why 83 is multiplied by ten and 2 is multiplied by 10. Its because when we use Base ten blocks, tens represent 1 Rod (Long)= 10 units. Hope it helps more.

5 0
2 years ago
Read 2 more answers
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