PLEASE ANSWER!!

Mathematics

1 answer:

s344n2d4d5 [400]2 years ago

7 0

D
${x}^{2} + 2xy \\ { ( - 3)}^{2} + 2( - 3)(5) \\ 9 + 2( - 15) \\ 9 + ( - 30) \\ - 21$

You might be interested in

Which expression represents B is decreased by 25%?

emmasim [6.3K]

b is decreased by 25% which means there will be (-ve) sign.

$b - 0.25b$

<em>Option 5 is correct!!~</em>

3 0

2 years ago

What is the equation of the line?

inessss [21]

The answer would be x=-9

3 0

2 years ago

What is the equation of the line perpendicular to the line with zero slope passing through point (5,7)?

Mademuasel [1]

Answer:

perp. is -0 which is 0

y - 7 = 0(x - 5)

y -7 = 0

y = 7 is the answer

6 0

2 years ago

manuel deposits $10000 for 12 yr in an account paying 4% compounded annually.He then puts this total amount on deposit in anothe

Naddik [55]

$\bf ~~~~~~ \textit{Compound Interest Earned Amount}
\\\\
A=P\left(1+\frac{r}{n}\right)^{nt}
\quad 
\begin{cases}
A=\textit{accumulated amount}\\
P=\textit{original amount deposited}\to &\$10000\\
r=rate\to 4\%\to \frac{4}{100}\to &0.04\\
n=
\begin{array}{llll}
\textit{times it compounds per year}\\
\textit{annually, thus once}
\end{array}\to &1\\
t=years\to &12
\end{cases}
\\\\\\
A=10000\left(1+\frac{0.04}{1}\right)^{1\cdot 12}\implies A=1000(1.04)^{12}\\\\\\ A\approx 16010.32$

he then turns around and grabs that money and sticks it for another 9 years,

$\bf ~~~~~~ \textit{Compound Interest Earned Amount}
\\\\
A=P\left(1+\frac{r}{n}\right)^{nt}
~~
\begin{cases}
A=\textit{accumulated amount}\\
P=\textit{original amount deposited}\to &\$16010.32\\
r=rate\to 5\%\to \frac{5}{100}\to &0.05\\
n=
\begin{array}{llll}
\textit{times it compounds per year}\\
\textit{semi-annually, thus twice}
\end{array}\to &2\\
t=years\to &9
\end{cases}
\\\\\\
A=16010.32\left(1+\frac{0.05}{2}\right)^{2\cdot 9}\implies A=16010.32(1.025)^{18}
\\\\\\
A\approx 24970.64$

add both amounts, and that's how much is for the whole 21 years.

6 0

3 years ago

What are the values of each Halloween icon? (Math Logic Puzzles) (78 POINTS)

Mekhanik [1.2K]

Answer:

is there anything else i can use to help me? besides a bunch of icons?

4 0

2 years ago