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Alona [7]
3 years ago
9

What is the length of BC? Round to the nearest tenth.

Mathematics
2 answers:
juin [17]3 years ago
5 0
I think I'm not very sure and I don't want you to get it wrong!!!! i think this 21.3in if you are not sure look for more alternatives
Greeley [361]3 years ago
3 0

Answer:

B) 20.5

Step-by-step explanation:

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Can someone answer with steps and explanation? Thanks.
Vika [28.1K]

Answer:

A dilation by a factor of three about Point T followed by a translation of two units downwards.

Step-by-step explanation:

When transforming functions, we will reflect/dilate the figure first and then translate it. This is directly from the order of operations.

Since we are trying to determine the transformation that was performed, we can try to map ΔS'T'U' onto ΔSTU. We can start by translating the figure and then determining any reflections/dilations.

First, we can translate ΔS'T'U' up two units to map T' onto T. This is represented by the black triangle in the image below. Let the black triangle be ΔS''T''U''. (T'' and T are the same point.)

Next, notice that from Point T'' to U'', we move nine units right and six units up.

From Point T to Point U, we move three units right and two units up.

Likewise, from Point T'' to S'', we move six units left and nine units up.

From Point T to Point S, we move two units left and three units up.

Therefore, to map ΔS''T''U'' onto ΔSTU, we dilate ΔS''T''U'' about Point T by a factor of 1/3.

Hence, by reversing the transformations, to acquire ΔS'T'U', we can see that we will dilate ΔSTU by a factor of three about Point T and then a perform a translation of two units downwards.

8 0
3 years ago
You might need:
Over [174]

Answer: dont know

Step-by-step explanation: dont know

8 0
3 years ago
The diagram below represents which percent?
nirvana33 [79]

Answer:

80%

Step-by-step explanation:

There are 4 shaded sections and 1 unshaded section, so five sections in total.

4 sections are shaded, so the fraction would be 4/5.

Dividing 4/5 gets you 0.8, move the decimal point two places over to get the percent (80%).

4 0
3 years ago
Read 2 more answers
Which step is incorrect and why
Svetach [21]

Answer:

10x-6 = 4(1+2x) + 6

10x-6 = 4 + 8x + 6

10x - 8x = 4+6+6

2x = 16

x = 8

hope it will help you

5 0
3 years ago
Solve by the multiplication of equality 5/49*x = 20/7
WARRIOR [948]
5/49(x)<span> = 20/7 
5x/49 = 20/7
</span>5x/49 × 49  = 20/7 <span>× 49
</span>5x  = 140
5x / 5 <span> = 140 / 5
</span>x = 28


7 0
3 years ago
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