3 years ago

I’ll give brainiest

Mathematics

2 answers:

Masteriza [31]3 years ago

8 0

Answer:

Step-by-step explanation:

9x^2-49y^2

AfilCa [17]3 years ago

8 0

Answer:

last one ok

Step-by-step explanation:

last one ok

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Step-by-step explanation:

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3 years ago

Please help!!! ABCD is a square with diagonals intersecting at E. What is the length of BE

Snezhnost [94]

Answer:

$BE = 4\sqrt2$

Step-by-step explanation:

Given

The attached square

Required

Find BE

First, we calculate BD (the diagonal) using Pythagoras theorem.

$BD^2 = BA^2 + AD^2$

Since the shape is a square, then

$BA = AD = 8$

So:

$BD^2 = 8^2 + 8^2$

$BD^2 = 2(8^2)$

Take square roots

$BD = \sqrt{2(8^2)$

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BE is half BD.

So:

$BE = \frac{1}{2} * BD$

$BE = \frac{1}{2} * 8\sqrt2$

$BE = 4\sqrt2$

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2 years ago

What is the sum of 308, 622 and 381.

dalvyx [7]

Answer:

755

Step-by-step explanation:

The sum of 308+622+381=755

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3 years ago

Please answer this math question for me

Whitepunk [10]

Answer:

Hello!! answer: a = 45

Step-by-step explanation:

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3 years ago