3 years ago

84 times four thirds

Mathematics

1 answer:

Svetllana [295]3 years ago

8 0

112
84 times 4/3= 336/3=112

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A new truck that sells for 29,000 depreciates 12% each year. What is the decay factor b?

Katena32 [7]

$\bf y=a(b)^t\qquad or\qquad A=I(1-r)^t\qquad \textit{let's check}\\\\
-------------------------------\\\\
\qquad \textit{Amount for Exponential Decay}\\\\
A=I(1 - r)^t\qquad 
\begin{cases}
A=\textit{accumulated amount}\\
I=\textit{initial amount}\to &29000\\
r=rate\to 12\%\to \frac{12}{100}\to &0.12\\
t=\textit{elapsed time}\\
\end{cases}
\\\\\\
A=29000(1-0.12)^t\implies 
\begin{array}{llll}
A=&29000(0.88)^t\\
&\uparrow \qquad\quad \uparrow \\
&a\qquad\quad b
\end{array}$

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3 years ago

An escalator lifts people to the second floor of a building, 21 ft above the first floor. The escalator rises at a 30° angle. To

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Answer:

Step-by-step explanation:

Sin 30=21/H

H=21/sin 30

H= 42

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3 years ago

“Eighteen is equal to the product of a number (n) and 9.”

gregori [183]

Answer:

n=2

Step-by-step explanation:

Create an equation.

9n=18

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Hope this helps!

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2 years ago

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Y equals x plus 13 in standard form

Shkiper50 [21]

Answer:

y=×+13

Step-by-step explanation:

standard form is any linear equation in y=mx+b

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3 years ago

If f(1) = 1 and f(n + 1) = 5f(n) + 3 then find the value of f(4).

FrozenT [24]

Answer:

218

Step-by-step explanation:

Because we need f(n) to calculate f(n+1), we have to calculate our values one step at a time. Starting with f(1) = 1,

f(2) = 5(f(1)) + 3 = 5(1) + 3 = 5+3 = 8

f(3) = 5(8) + 3 = 40 + 3 = 43

f(4) = 5(43) + 3 = 215 + 3 = 218

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3 years ago