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stealth61 [152]
3 years ago
9

The two triangles are similar. What is the value of x?

Mathematics
1 answer:
Lena [83]3 years ago
5 0

Answer:

21

Step-by-step explanation:

Ratios are used.

10/30 = 12/36 = 7/x

1/3 = 7/x

x = 3*7 = 21

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3/4 - 1/2n =5/8. solve for n
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Please help me vote you brainlest and 10 points
Alchen [17]
It would maybe the first one or the third one since the a is negative and the b is positive or that is what I am going on so a or c sorry if I am wrong
6 0
3 years ago
How do I solve for x since the triangles are similar?
Llana [10]
A line that is parallel to a side and intersects the other two siddes divides the sides proportionally.

Set up the proportion
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3 0
3 years ago
a submarine travels 90 kilometers in 4 hours find the submarines rate of speed in kilometers per hour
defon

Answer:

22.5

Step-by-step explanation:

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6 0
2 years ago
How do you prove this?
frozen [14]

Answer:

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Step-by-step explanation:

Informally, subtract DE from CE and DF. This will show CD ≅ EF.

Then ΔBCD ≅ ΔGFE by the HL theorem for right triangles.

Corresponding parts of congruent triangles are congruent, namely the angles C and F.

Since base angles of ΔACF are congruent, it is isosceles.

3 0
3 years ago
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