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Firlakuza [10]
3 years ago
9

How to factor y=x^2-4x-45

Mathematics
1 answer:
natulia [17]3 years ago
6 0

Answer:

(x+5)(x-9)

Step-by-step explanation:

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Find the simple interest rate needed in order for an investment of $2000 to grow to an account of $5000 in 3 years
Nutka1998 [239]

\bf ~~~~~~ \textit{Simple Interest Earned Amount} \\\\ A=P(1+rt)\qquad \begin{cases} A=\textit{accumulated amount}\dotfill & \$5000\\ P=\textit{original amount deposited}\dotfill&\$2000\\ r=rate\to r\%\to \frac{r}{100}\\ t=years\dotfill &3 \end{cases} \\\\\\ 5000=2000(1+r3)\implies \cfrac{5000}{2000}=1+3r\implies \cfrac{5}{2}=1+3r \\\\\\ 5=2+6r\implies 3=6r\implies \cfrac{3}{6}=r\implies 0.5=r\implies \stackrel{\textit{converting to percent}}{0.5\cdot 100\implies 50\%}

5 0
3 years ago
Rate of change for y= 2/3x-48
tangare [24]

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The rate of change is the same thing as the slope of a line

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3 years ago
Which value is NOT equivalent to 135%?
Margarita [4]
D. 100/135 the rest of them equal 135%
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Question 5 (Multiple Choice Worth 4 points)
Lilit [14]

Answer: ∠p and ∠s, ∠q and ∠r

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From the lines on the angles indicate which ones are corresponding, for example angles p and s both have 2 lines, while angles q and r both have one line.

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51/60 as a fraction, decimal, and a percent?
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To get 51/60 courted to decimal you simply divided 51 by 60
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