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Anna35 [415]
2 years ago
10

I am not able to solve this problem​

Mathematics
1 answer:
Ivenika [448]2 years ago
4 0

Answer:

C

Step-by-step explanation:

you know the drill

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djyliett [7]

Answer:

11

Step-by-step explanation:

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Aleksandr-060686 [28]

You found CD from the Pythagorean theorem to be ...

... CD = √(5² -2²) = √21

Since triangle ADC ~ triangle ACB, the ratios of corresponding sides are the same:

... AC/AD = AB/AC

... AB = AC²/AD

... AB = 5²/2 = 12.5 . . . . . . . the base of the overall triangle

_____

Then the area (A) is ...

... A = (1/2)bh

... A = (1/2)(12.5)(√21) ≈ 28.64 square units

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As you see here, the altitude of a right triangle divides it into three similar triangles. From smallest to largest, they are ...

... ADC ~ CDB ~ ACB

You can figure this using AAA similarity, since the smallest and largest triangles listed above share an acute angle vertex (∠A). That, together with the right angle, means all angles are congruent. After that, then you know ∠ACD ≅ ∠CBD, so you can show the middle sized triangle is similar to the other two.

6 0
2 years ago
Round 0.172 to the nearest hundredth.
aleksandr82 [10.1K]
It is <span>Round 0.172 to the nearest hundredth.</span>
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3 years ago
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-5х + Зу = -8<br> 3х - 7y = -3<br> Ordered pair
tatiyna

Answer:

1. y= 2x-5        

2. y= x+3

3. y=2x+7

Step-by-step explanation:

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Answer:

0.83333333

Step-by-step explanation:

Is that what you wanted?

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3 years ago
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