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3 years ago

Please help me give me the explanations of them not just the answer and yes I’m giving 24 points

Mathematics

2 answers:

s2008m [1.1K]3 years ago

7 0

First questions answer is:

23.4 - 8.78 = 14.62

you subract 23.4 by 8.78. Since the number 23.4 is bigger than 8.78, the answer is not negative.

how you subtract the two numbers are you line up the decimal points, and then add a 0 next to the 4 in the term 23.4, and just subtract the two terms, 8.78.

Second question answer is:

if you add 2+4 you get 6.

Third question answer is:

$110

you add 47.91 + 23.96 + 35.09 and you get 106.96, which is closest to 110, so She spent about $110

Hope this helped, if I'm wrong on anything, feel free to correct me

Trava [24]3 years ago

6 0

Answer:

well the middle on is 3

Step-by-step explanation:

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brilliants [131]

Answer:

Step-by-step explanation:

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8 0

2 years ago

Picture of reflected trapezoid above the line

asambeis [7]

Answer:

which line!

x or y axis?

first image is over the x axis

second is over the y

Step-by-step explanation:

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3 0

2 years ago

Given certain information, what is the value of x4-y4?

Pepsi [2]

Well right off the bat, I can see a good reason why it should boggle.

If (x+y)=6 and (x-y)=2, then (x+y)(x-y) would be 12. It can't be 20.

The first 4 lines on the paper are inconsistent, so the question in the 5th line can't be calculated.

Another possible source of uncertainty (for us, anyway) is the remarkable similarity between the way you write ' Y ' and the way you write ' 4 ' . For example, look at the ' Y⁴ ' (I think ...) in the last line.

3 0

3 years ago

Finding a polynomial of a given degree with given zeros

galben [10]

Since f(x) is a polynomial with 3rd degree, then it will have 3 roots (zeroes)

One of them is real and the other two are complex conjugate roots

Since the real root is 4, then

x = 4

Since the complex root is (1 - i), then

The other root will be the conjugate of it (1 + i)

x = (1 - i)

x = (1 + i)