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kodGreya [7K]
2 years ago
7

32i-4+2=6-42i-3 help

Mathematics
1 answer:
Dmitrij [34]2 years ago
8 0
15i would be your best answer
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If a rectangle has an area of x^2+x-20 and a width of x-4, what is the length?
Mrac [35]

Answer:

This (x - 5) represents the length of the rectangle.

Step-by-step explanation:

The formula for the area of a rectangle of length L and width W is A = L * W.

Here, the width is x - 4 and the area is x^2 + x - 20.  Dividing the width (x - 4) into the area results in an expression for the length:

x - 4  /   x^2 + x - 20

Let's use synthetic division here.  It's a little faster than long division.

If the divisor in long division is x - 4, we know immediately that the divisor in synthetic division is 4:

4   /   1    1    -20

              4     20

    --------------------

         1     5     0

This synthetic division results in a remainder of 0.  This tells us that 4 (or the corresponding (x - 4) is indeed a root of the polynomial x^2 + x - 20, and so *(x - 4) is a factor.  From the coefficients 1 and 5 we can construct the other factor:  (x - 5).  This (x - 5) represents the length of the rectangle.

4 0
2 years ago
What ate all the numbers that round to 240
kramer
248 243 247 246 245 249
5 0
3 years ago
Please help! Identify each decimal number as either rational or irrational.
labwork [276]

Answer:

A Rational number is a number that can be written as a ratio in fraction form.

An Irrational number is a number that, when in decimal form, does not terminate or repeat.

Step-by-step explanation:

1.485 can be written as 1 485/1000 - it is rational

0.187345911... continues on and does not repeat - it is irrational

333.051422218... continues on and does not repeat - it is irrational

0.2268715 can be written as 2268715/10000000 - it is rational

1.24 can be written as 1 24/100 - it is rational

6 0
3 years ago
Subtract. Write your answer as a fraction in simplest form.<br><br> 58−(−78)=
chubhunter [2.5K]

Answer:

136

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Which graph represents y = -2x
mr Goodwill [35]

Answer: Second Option, with a downward trend from left to right.

Step-by-step explanation:

We just have to find a graph that matches up with a slope of -2 or a rise/run of -2/1.

7 0
3 years ago
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