3 years ago

Find the product (−2)(2−10+8)

Mathematics

2 answers:

lbvjy [14]3 years ago

8 0

Answer:

Step-by-step explanation:

Tresset [83]3 years ago

3 0

Answer:

like the person above, i also got 0

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Evaluate the expression 3x + 21 for x=3

hichkok12 [17]

Answer:

Step-by-step explanation:

Problem = 3x + 21 for x=3

3(3) +21 --- subsitute the three for the x

9 + 21 ---- multiply the 3s together

30 ----- add

6 0

3 years ago

What is this simplified: 5(z+4)+5(2-z)

STALIN [3.7K]

It would be 30 because when you add 5z to a -5z those cancel out so what you have left would be 20+10 and you would add those together and get 30.

7 0

3 years ago

Determine the growth defined by the equation y=3(3.4)x

jekas [21]

$\bf \qquad \textit{Amount for Exponential Growth}\\\\
A=I(1 + r)^t\qquad 
\begin{cases}
A=\textit{accumulated amount}\\
I=\textit{initial amount}\\
r=rate\to r\%\to \frac{r}{100}\\
t=\textit{elapsed time}\\
\end{cases}\\\\
-------------------------------\\\\
\stackrel{A}{y}=\stackrel{I}{3}(3.4)^{x}\implies y=3(1+\stackrel{r}{2.4})^x
\\\\\\
\cfrac{r}{100}=2.4\implies r=100\cdot 2.4\implies r=\stackrel{\%}{240}$