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3 years ago

Please match this proof

Mathematics

2 answers:

ss7ja [257]3 years ago

7 0

Answer:

refer to the attachment

Gennadij [26K]3 years ago

3 0

Answer:

A, B, C, D, E

Step-by-step explanation:

AB ≅ AC and AD bisects ∠A

This is given information from the diagram and the statement.

∠BAD ≅ ∠CAD

This is from the definition of angle bisector.

AD ≅ AD

This is reflective property of congruence.

ΔABD ≅ ΔACD

From the previous three statements, side-angle-side congruence tells us the triangles are congruent.

∠B ≅ ∠C

Corresponding parts of congruent triangles are congruent.

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-64=(2cos(pi/2)+2i sin(pi/2))^n..... n=??

zvonat [6]

Answer:

The real solution is $n=6$ .

Step-by-step explanation:

$\cos(\frac{\pi}{2})=0$ while $\sin(\frac{\pi}{2})=1$

So the equation becomes:

$-64=(2(0)+2i(1))^n$

$-64=(0+2i)^n$

$-64=(2i)^n$

We know that $2^6=64$ . So let's see what $n=6$ gives us:

$(2i)^6=64i^6=64i^4i^2=64(1)(-1)=-64$ .

$-64$ is the result we wanted.

$n=6$ is therefore a solution.

4 0

3 years ago

Answer number 4 this is due tomorrow

ikadub [295]

Answer:

The next mark should be at (3,-3)

5 0

3 years ago

What inequality symbol below makes the statement above true? 3.5_3/5

mylen [45]

Answer:

3.5>3/5

Step-by-step explanation:

8 0

3 years ago

Please help, and i will mark you BRAINLIEST <br><br> QUESTION:<br> Solve: (-8) x (-4) = ________

aleksandr82 [10.1K]

Answer:

Step-by-step explanation:

Both are negative so it come out to positive and then 8*4 is 32

5 0

3 years ago

What is the value of a in the equation 3 a plus b equals 54, when b equals 9?

NikAS [45]

Answer:

a = 15

Step-by-step explanation:

Given

3a + b = 54 ← substitute b = 9

3a + 9 = 54 ( subtract 9 from both sides )

3a = 45 ( divide both sides by 3 )

a = 15

5 0

4 years ago

Read 2 more answers

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Please match this proof