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Aliun [14]
3 years ago
13

I need help, what do I do?

Mathematics
1 answer:
AnnZ [28]3 years ago
6 0
I'm sorry sorry don't no understand brother
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The reduced row-echelon forms of the augmented matrices of four systems are given below. How many solutions does each system hav
vagabundo [1.1K]

Answer:

A. Infinitely many solutions.

Step-by-step explanation:

The row and column numbers are equal in the echelon. This rows have 0001 numbers which indicates that there is free variable at the end. The reduced row echelon has equal number of rows and columns. There are infinitely many solution as the numbers in the rows are zero ending of the free variable 1. If there is no free variable then there will be no solution.

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3 years ago
Find the reference angle for 497°<br> A) 137°<br> B)133°<br> C) 47°<br> D) 43°
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Reference angle is 137
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3 years ago
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Ben decides to start a business walking dogs and cleaning swimming pools. It
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It would be B (15x + 20x)

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3 years ago
-4.67 + (5.24 – <br> ) – (<br> + 7.98) = 13.26
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6

Step-by-step explanation:

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2 years ago
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
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