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alexandr402 [8]
2 years ago
9

Find the length of side a. please help?

Mathematics
2 answers:
GaryK [48]2 years ago
8 0

Answer:

Hello! I believe your answer is a = 3

Step-by-step explanation:

a= \sqrt{5^{2}-4^{2} } = 3

Have a good day! - Zac

ladessa [460]2 years ago
3 0

Answer: 3

Step-by-step explanation: Use the pythagorean theory!!!

a^{2} +4^{2}=5^{2}

a^{2}=5^{2}-4^{2}

a^{2} =25-16

a^{2}=8                  square root both sides √

a=2.8=3

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3 years ago
If two matrices, A and B, are equal, which of the
alexandr402 [8]

If A and B are equal:

Matrix A must be a diagonal matrix: FALSE.

We only know that A and B are equal, so they can both be non-diagonal matrices. Here's a counterexample:

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Both matrices must be square: FALSE.

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Both matrices must be the same size: TRUE

If A and B are equal, they are literally the same matrix. So, in particular, they also share the size.

For any value of i, j; aij = bij: TRUE

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8 0
3 years ago
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Factor each expression 30+10x-40y
Sergio039 [100]
Hello!

To factor you find the biggest number they can be divided by

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Hope this helps!
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3 years ago
Help!!!! No Bad Answers Will Give brainiest!!
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The domain the given graph is :

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Based on the reflexive property of congruency, the missing step in the proof is: A. ∠ABC ≅ ∠DBE

<h3>What is the Reflexive Property of Congruency?</h3>

The reflexive property of congruency states that an angle will always be congruent to itself.

In the diagram given, we can prove that ∠ABC ≅ ∠DBE based on the reflexive property.

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Learn more about reflexive property on:

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