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8_murik_8 [283]
2 years ago
13

PLEASE HELPP! WORTH 20 POINTS

Mathematics
1 answer:
katrin2010 [14]2 years ago
8 0

Answer:

B

Step-by-step explanation:

Because

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I have this question that i dont get plz help-2|2.2x-3.3|=-6.6
maria [59]

Step-by-step explanation:

Absolute value of a number gives the positive quantity of the number.

For instance,

|3|=3, |-3|=3

From this example, therefore we know that

\text{If }|x|=a,\text{ then }x=a\text{ or } -a.

--------------------------------------------

In this question,

-2|2.2x-3.3|=-6.6

|2.2x-3.3|=3.3

2.2x-3.3=3.3\text{ or } -3.3

2.2x=3.3+3.3 \text{ or }-3.3+3.3

2.2x=6.6\text{ or } 0

x=3\text{ or } 0

8 0
3 years ago
Read 2 more answers
For the function f(t)+Pe^rt, if P = 8 and r = 0.08, then what is the value of f(8) to the nearest tenth?
Bogdan [553]
F(t) = P.e^(r.t) [ and not as you wrote it  f(t)+Pe^rt]
plug in:

f(t) = 8.e^(0.08t) (where e = 2.718 and t=8 given, f(8))
f(8) = 8.(2.718)^(0.08*8) = 21.74^(0.64)

f(8) = 7.17
4 0
3 years ago
Read 2 more answers
Elly's room measures 78 inches by 96 inches. Sarah's room measures 66 inches by 108 inches. They want to combine their rooms. Ho
frozen [14]
Okay add 78 and 66. Then add 96 and 108.  It should be 144 by 204. I know math  is hard, but when you work at it you can do amazing things! I hope that helps you.
7 0
3 years ago
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Using these complex zeros (1,1,-1/2,2+i,2-i) factor f(x)=-2x^5 +11x^4 -22x^3 +14x^2 +4x -5
Marianna [84]
\bf \begin{cases}
x=1\implies &x-1=0\\
x=1\implies &x-1=0\\
x=-\frac{1}{2}\implies 2x=-1\implies &2x+1=0\\
x=2+i\implies &x-2-i=0\\
x=2-i\implies &x-2+i=0
\end{cases}
\\\\\\
(x-1)(x-1)(2x+1)(x-2-i)(x-2+i)=\stackrel{original~polynomial}{0}
\\\\\\
(x-1)^2(2x+1)~\stackrel{\textit{difference of squares}}{[(x-2)-(i)][(x-2)+(i)]}

\bf (x^2-2x+1)(2x+1)~[(x-2)^2-(i)^2]
\\\\\\
(x^2-2x+1)(2x+1)~[(x^2-4x+4)-(-1)]
\\\\\\
(x^2-2x+1)(2x+1)~[(x^2-4x+4)+1]
\\\\\\
(x^2-2x+1)(2x+1)~[x^2-4x+5]
\\\\\\
(x^2-2x+1)(2x+1)(x^2-4x+5)

of course, you can always use  (x-1)(x-1)(2x+1)(x²-4x+5)  as well.
7 0
3 years ago
Express the interval shown on the number line in inequality notation.
Bess [88]

Answer: x < -3 or x > 5

Step-by-step explanation: Interval notation shows the values of x. X is less than -3, or greater than 5.

6 0
3 years ago
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