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slamgirl [31]
3 years ago
11

What is the property for 21+(8+3)=(21+8)+3

Mathematics
1 answer:
Sergio039 [100]3 years ago
7 0
The answer for this problem is associative property
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What is the value of the expression 1 – r – a when r = 20 and a = 6?
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Solve the equation for all values of x: (x+1)^2=-49
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Answer:

Values for x = -1 + 7i  and -1 - 7i

Step-by-step explanation:

we have an equation,

(x+1)^2 = -49

We need to solve this equation for all values of x:

(x+1)^2 = - 49

Taking square root both sides

√((x +1)^2) = √-49

x + 1 = ± 7i

Subtract both sides by 1

x = -1 ± 7i

Hence we get two values for x = -1 + 7i  and -1 - 7i

6 0
4 years ago
What is 3× + 4 (× +2) +4y​
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Expand

3x + 4x + 8 + 4y

Collect like terms

(3x + 4x) + 8 + 4y

Simplify

<u>= 7x + 8 + 4y</u>

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