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Nimfa-mama [501]
3 years ago
9

Define equivalent expressions. Give an example of two equivalent expressions.

Mathematics
1 answer:
Tasya [4]3 years ago
3 0

Answer:

Hello There!

Step-by-step explanation:

Equivalent expressions are expressions that work the same even though they look different.

Examples of two equivalent expressions are:

-4(x + 2) and 4x + 8

-2y+5y−5+8 and 7y+3

These are equivalent expressions as they have the same value.

hope this helps,have a great day!!

~Pinky~

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Answer:

\huge \boxed{ \boxed{z = 3}}

Step-by-step explanation:

<h3>to understand this</h3><h3>you need to know about:</h3>
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<h3>let's solve:</h3>
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3 years ago
What are the explicit equation and domain for a geometric sequence with a first term of 2 and a second term of −8?
Alexxx [7]
The common ratio in a geometric sequence is the ratio between 2 consecutive terms:

-8/2=-4, 

then the sequence is  2, -8, 32, -128, -512, 2048, ...

let a_n be the nth term of the sequence, then 

a_1= 2
a_2=2(-4)
a_3=2(-4)(-4)=2(-4)^{2}
a_4=2(-4)(-4)(-4)=2(-4)^{3}
.
.
.
so clearly a_n=2(-4)^{n-1}

and, clearly n are integers >0, since we have a 1st term, a second term and so on... of a sequence (we do not have a "zero'th term"!

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<span>C. an=2(-4)^n-1; all integers where n>0</span>
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Then, since 2x+7 and 12y+1 equals 180, put it together to find y:

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