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Ivanshal [37]
3 years ago
15

( Rachel needs to write 3 book reports with b pages 3 science report with s pages during the school year write an algebra expres

sion for the total of pages Rachel will need to write )
Follow up question

Rachel’s friend Yassi has to write 3 ( b + s ) pages for reports, Use properties of operations to determine whether this expression is equivalent to the expression for the number of pages Rachel needs to write.
Mathematics
1 answer:
artcher [175]3 years ago
5 0
Anwser: 3b+3s

step by step explanation:
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1. Write a polynomial function of minimum degree with real coefficients whose zeros include those listed. Write the polynomial i
Katena32 [7]
Polynomial with real coefficients always has even number of complex roots. We know that one of them is 2 + 5i so the second one will be  2 - 5i and:

f(x)=\big(x-4\big)\big(x-(-8)\big)\big(x-(2+5i)\big)\big(x-(2-5i)\big)=\\\\=(x-4)(x+8)(x-2-5i)(x-2+5i)=\\\\=(x^2-4x+8x-32)(x^2-2x+5ix-2x+4-10i-5ix+10i-25i^2)\\\\=\big(x^2+4x-32\big)\big(x^2-4x+4-25\cdot(-1)\big)=\\\\=(x^2+4x-32)(x^2-4x+29)=\\\\=x^4-4x^3+29x^2+4x^3-16x^2+116x-32x^2+128x-928=\\\\=\boxed{x^4-19x^2+244x-928}

Answer B.
8 0
3 years ago
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In a laboratory, they were testing a certain bacteria. They stated with 50 bacteria and they noticed it triples every 30 minutes
MaRussiya [10]
I think it’s just 4(50•3)=600
4 0
2 years ago
At the start of the experiment substance is measured to be 70°C, and by the end of the experiment its temperature is measured as
11Alexandr11 [23.1K]

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Answer:

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Step-by-step explanation:

The change is found by subtracting the start temperature from the finish temperature. It is ....

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3 0
2 years ago
Whoever answers this will get a cookieeeeeee (btw the first one is wrong, this is my 2nd attempt)
Juli2301 [7.4K]

Answer:

the answer is c

Step-by-step explanation:

7 0
2 years ago
Click on the graphic to select the figure that would make the following a reflection in line k
Roman55 [17]

I remember answering the same question, but you didn't attach any photos. But I remember that the answer is the first one.

I hope I helped. Stay safe and God bless!

- Eli <3

6 0
3 years ago
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