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swat32
3 years ago
15

The expression (3 - 7i)2 is equivalent to

Mathematics
1 answer:
vagabundo [1.1K]3 years ago
4 0

Answer:

Step-by-step explanation:

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(4m-3n)^2 Multiplying Polynomials
Sindrei [870]

Answer:

4m²-24mn+9n²

Step-by-step explanation:

  1. Separate equation out so it is (4m-3n)×(4m-3n)
  2. FOIL (First, Outside, Inside, Last) your polynomial
  3. Should have equation 4m²-12mn-12mn+9m²
  4. Combine like terms
  5. Result: 4m²-24mn+9m²
8 0
3 years ago
Which of the following is equivalent to (1/2)^-2t
Zepler [3.9K]

Answer:

Choice (3) \left(2^2\right)^t is correct.

Step-by-step explanation:


Given expression is \left(\frac{1}{2}\right)^{-2t}

Now we need to simplify this and check which of the given choices best match with it.

\left(\frac{1}{2}\right)^{-2t}

=\left(\frac{1}{2^1}\right)^{-2t}

=\left(2^{-1}\right)^{-2t} {using formula =\frac{1}{x^m}=x^{-m}}

=\left(2^{-1}\right)^{-2t} {using formula =\left(x^m\right)^n=x^{\left(m\cdot n\right)}}

=2^{\left(-1\right)\left(-2t\right)}

=2^{2t}

=\left(2^2\right)^t {using formula =\left(x^m\right)^n=x^{\left(m\cdot n\right)}}

Hence choice (3) \left(2^2\right)^t is correct.

8 0
3 years ago
Read 2 more answers
The average cost for a gallon of gasoline increased from $2.56 one year to $3.18 the next year. What is the percent of increase,
frez [133]
%change=100(final-initial)/initial

In this case:

%change=100(3.18-2.56)/2.56

%change=100(0.62)/2.56

%change=62/2.56

%change=775/32%

%change=24.21875%

%change≈24%  (to nearest whole percent)
7 0
4 years ago
Read 2 more answers
What is the slope of the line????
Lisa [10]
Y= -4/5x -1.5

I believe this right!
5 0
3 years ago
What is the depth of the Indian Ocean rounded to the nearest thousand
kvv77 [185]
Hey There!

The depth of the Indian Ocean rounded to the nearest thousand would be 26,401, because the number is less than 5.


4 0
3 years ago
Read 2 more answers
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