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cricket20 [7]
3 years ago
13

Given:

Mathematics
1 answer:
Lubov Fominskaja [6]3 years ago
5 0

Answer:

Step-by-step explanation:

I'm not very familiar with 2 column proofs but the following is how we'd prove it in the UK:

AB ≅ AC  ( Given)

BE ≅ CE   (Given)

Line segment AE is common to Δ's ABE and ACE

so the 2 triangles are congruent.   (By SSS).

< BAD  ≅ < CAD ( as triangles ABE and ACE are congruent).

AD is common  to Δ's BAD and CAD.

AB  ≅ AC (given)

So Δ's BAD and CAD are congruent by SAS.

Therefore < ADB  ≅ < ADC ( as triangles BAD and CAD are congruent).

m < BDE = 180 - m < ADB  and

m < CDE = 180 - m < ADC  (both  angles are adjacent)

So since < ADB  ≅ < ADC,

< BDE    ≅ < CDE.

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Ulleksa [173]

Answer:

Step-by-step explanation:

1) A perfect square is a whole number which is a product of a smaller whole number and itself. Examples of perfect squares are

4(2 × 2)

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25(5 × 5)

36(6 × 6)

2) Square root of 4x² is 2x(product of square root of 4 and square root of x²)

3) square of 25 is 5

4) 4x² + 20x + 25

The general formula for solving quadratic equations is expressed as

x = [- b ± √(b² - 4ac)]/2a

From the equation given,

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Therefore,

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x = [- 20 ± √(400 - 400)]/8

x = [- 20 ± 0]/8

x = - 20/8

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3 0
3 years ago
I need the answer so please help it is worth 88 points
yulyashka [42]

Answer:

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If she did all 3of them today then you subtract a day from each one then it would look like this

5+4+15=24

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3 years ago
A surgery asks 25 people if they prefer brand A of brand B laundry detergent. The data show that 12 people prefer brand A. Write
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Answer:

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13:25

\frac{13}{25}

Step-by-step explanation:

All of these show the ratio 13/25

Hope this helps!

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I would say the answer is A.
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