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Anon25 [30]
3 years ago
13

Solve the following equation by identifying all of its roots including any imaginary numbers and multiple roots.

Mathematics
2 answers:
Advocard [28]3 years ago
7 0
I think it equals 4
Sauron [17]3 years ago
5 0

Answer:  x = {-1, 1, -i√2, i√2, -3, 4}

<u>Step-by-step explanation:</u>

(x² - 1)(x² + 2)(x + 3)(x - 4)(x+1)=0

Set each factor equal to zero and solve.

x² - 1 = 0  →  x² = 1  →  x = ±1

x² + 2 = 0  →  x² = -2  →  x = ± i√2

x + 3 = 0  →  x = -3

x - 4 = 0  →  x = 4

x + 1 = 0  →  x = -1   (note that -1 is a duplicate - solved from the first factor)

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What is the perimeter of a rectangle whose length is -3x + 4 and a width of 5x - 2?
denpristay [2]

Answer:

Step-by-step explanation:

Perimeter = 2*(length + width)

=2*(-3x +4 + 5x - 2)

=2*(2x + 2)

=2*2x + 2*2

=4x + 4

3 0
3 years ago
Read 2 more answers
Please help me with this question.​
Sav [38]

Answer:

-2; -7

Step-by-step explanation:

Hello, the graph is split in two lines, right?

Go to the first line at the left and move to the right until you reach the end of the line, which is for x = -1,

*** This is the meaning of x tending to

(-1)^{-} ***

which value can you see for the y-axis? \boxed{-2}

Now, go to the second line at the right and move to the left until you reach the end of the line, which is for x = -1,

*** This is the meaning of x tending to

(-1)^{+} ***

which value can you see for the y-axis?

\boxed{-7}

Thanks

7 0
3 years ago
I need help with both of these questions please
tankabanditka [31]

Answer:

\frac{22}{30} = \frac{11}{15}

and

\frac{176}{7} = 25 \frac{1}{7}

Step-by-step explanation:

First make all the fractions into improper fractions

1\frac{5}{6} = \frac{11}{6} \\\\2\frac{1}{2} = \frac{5}{2} \\\\3\frac{1}{7} = \frac{22}{7}

After doing that put them back into the problems

Problem 1)

1\frac{5}{6}  ÷ 2\frac{1}{2} , plug in the improper fractions

\frac{11}{6} ÷ \frac{5}{2}

to divide, you need to flip the second fraction and multiply

\frac{11}{6}· \frac{2}{5} = \frac{22}{30}

then reduce

\frac{22}{30} = \frac{11}{15}

Problem 2)

3\frac{1}{7}÷ \frac{1}{8}\\

Plug in improper fraction

\frac{22}{7} ÷ \frac{1}{8}\\

Then flip second fraction and multiply

\frac{22}{7} · \frac{8}{1}

Multiply

\frac{176}{7}

Reduce, or make it a mixed number

\frac{176}{7} = 25 \frac{1}{7}

3 0
3 years ago
What is the median for the set of data? Ages Stem Leaves
Temka [501]

Answer:

This is a stem leaf data, in which the stem generally stands for the "tens" place value while the leaf stands for the "ones" place value.

Expand the data, and find the median by finding the middle number:

10, 13, 16, 20, 21, 23, 27, 27, 28, 29, 30, 32, 33, 33, 33, 33, 38, 39, 46, 46, 46, 48

There are 22 numbers in all. To find the Median when there is a even amount of numbers, Find the two middle numbers, and find the mean of the two numbers:

(32 + 30)/2 = (62)/2 = 31

31 is your answer.

~

3 0
3 years ago
I need help with this​
grigory [225]

Answer: The circumference would be 13.502

Step-by-step explanation: I totally forgot how to do the rest I am sorry

5 0
3 years ago
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