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disa [49]
3 years ago
9

What is the value of x?

Mathematics
1 answer:
antiseptic1488 [7]3 years ago
4 0

Answer:

x=10

Step-by-step explanation:

BD/CD=AB/AC

x+4/2x+1=8/12

12(x+4)=8(2x+1)

12x+48=16x+8

12x+48-8=16x+8-8

40=4x

40/4=4x/4

10=x


Hope this helps! ;)

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Answer:

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Step-by-step explanation:

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2 years ago
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mrs_skeptik [129]

Answer:

9

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20 x 5 = 100

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PLEASE PLEASE PLEASE HELP!!
Marta_Voda [28]
Okay I'll try to show it step by step

Step 1. So first you need to recognise that the diagram is a right angled triangle, with the right angle being at the bottom. This means we can do Pythagoras' Theorem.

Step 2. Now that you know you can use Pythagoras' Theorem, you can apply it. If you don't know, the theorem is a² + b² = c², with, in this case, a being 5 and b being 8. This means we can do 5² + 8² = 25 + 64 = 89.

Step 3. From the previous step, we now know that the length of the side including x is √89, and because we know that part of this side is 3, if we subtract 3 from √89 we get the value of x, so: √89 - 3 = 9.434 - 3 = 6.434, which is your answer.

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5 0
3 years ago
Suppose Kalvin spins the pointer 64 times. Based on your experiment, how many times can you expect the pointer to land on 9:00,
Brrunno [24]

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3 years ago
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ad-work [718]

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We can't use AA because we don't have two pairs of congruent angles.

Currently, we simply don't have enough information to determine if the triangles are similar or not.

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