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Alisiya [41]
3 years ago
8

Please help me out!!!!!!

Mathematics
1 answer:
mestny [16]3 years ago
3 0

Answer:

Since we knew that the triangles are similar, we have:

19/38 = (x + 7)/(3x + 3)

=> 1/2 = (x + 7)/(3x + 3)

=> 3x + 3 = (x + 7) . 2

=> 3x + 3 = 2x + 14

=> 3x - 2x = 14 - 3

=> x = 11

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Distance between (-3, 4/11) and (3, 4/11)
ELEN [110]

Answer:

6

Step-by-step explanation:

3 0
3 years ago
The sum of two numbers is 39 and the difference is 3. What are the numbers?
frosja888 [35]

Answer: 21 & 18

Step-by-step explanation:

Sum of two numbers is 39

Difference is 3

Let the numbers be x & y

X+y=39........equation 1

X-y=3...........equation 2

X=3+y............equation 3

Substitute equation 3 into equation 1

(3+y)+y=39

3+y+y=39

3+2y=39

2y=39-3

2y=36

Y=36/2

Y=18

Substitute for y in equation 2

X-y=3

X-18=3

X=3+18

X=21

The two numbers are 21 & 18

8 0
4 years ago
There are nine squares in a 3 x 3 square grid. Four of them will be painted white, how many will be painted black?
amid [387]

Answer:

5 squares will be painted black.

Step-by-step explanation:

There are 9 squares, and 4 of them will be painted white, so that means that the remaining squares will be painted black. 9-4=5, so 5 squares will be painted black.

Hope this helped! :)

5 0
3 years ago
What is the area of the circle?​
Alika [10]

Answer:The area of a circle is pi times the radius squared (A = π r²)

Step-by-step explanation:The area of a circle is pi times the radius squared (A = π r²)

3 0
3 years ago
I don't even know where to start on this problem?
velikii [3]
I think you have to count 85 and go down like 85 86 87so the answer is 15
7 0
3 years ago
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