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stealth61 [152]
3 years ago
9

7x^2 +2× when x = 3?

Mathematics
2 answers:
ZanzabumX [31]3 years ago
8 0

Answer:your answer would be 106


Step-by-step explanation: the new equation would be 7(3)2+2(3) the 7x3x2 would equal 98 and and the 2x3 would equal 8 because 2x2x2 98+8=106

borishaifa [10]3 years ago
4 0

Answer:

7(3^2) + 2(3).

That equals to 7(9) + 2(3).

That equals to 63 + 6.

That finally equals to 69.

Step-by-step explanation:


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devlian [24]
The commutatice property for addition says a+b=b+a
If it was for subtraction, then it would be a-b=b-a
Take a=7 and b=5
7-5 is not equal to 5-7
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So subtraction is not commutative for whole numbers.

Hope this helps :)
6 0
3 years ago
Write each decimal using a negative exponent.
leonid [27]

Answer:

The answer to your question is below

Step-by-step explanation:

When using scientific notation,

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a) 0.00001    move the decimal point 5 places to the right   1 x 10⁻⁵

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8 0
3 years ago
Read 2 more answers
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leonid [27]

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Step-by-step explanation:

7 0
2 years ago
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6 0
3 years ago
Evaluate the expression for the given values of the variables.
vfiekz [6]

Answer:

A

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7 0
2 years ago
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