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EastWind [94]
4 years ago
15

I need help with 20. and 22

Mathematics
1 answer:
Tpy6a [65]4 years ago
5 0
The answer to question number 20) = 702
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A restaurant purchased kitchen equipment on January​ 1, 2017. On January​ 1, 2019, the value of the equipment was ​$14 comma 550
timama [110]

Answer:

\frac{dV(t)}{dt} = - 1675.38

Step-by-step explanation:

In 2017, the vakue of the kitchen equipment was $14550

V(0)=$14550

Its value after then was modelled by V(t)=14550e^{-0.158t

We are required to find the rate of change in value on January 1, 2019

V(t)=14550e^{-0.158t

\frac{dV(t)}{dt} =\frac{d}{dt}14550e^{-0.158t

\frac{dV(t)}{dt} =14550 \frac{d}{dt}e^{-0.158t

\\Let u= -0.158t,\frac{du}{dt}=-0.158

\frac{dV(t)}{dt} =14550 \frac{d}{du}e^u\frac{du}{dt}

\frac{dV(t)}{dt} =14550 X -0.158 e^{-0.158t}=-2298.9e^{-0.158t}

In 2019, i.e. 2 years after, t=2

The rate of change of the value

\frac{dV(t)}{dt} =-2298.9e^{-0.158X2}

=\frac{dV(t)}{dt} =-2298.9e^{-0.316}= - 1675.38

3 0
3 years ago
A park has a rectangular field, and pool that are similar in shape. Each dimension of the field is 8.2 times the corresponding d
nordsb [41]
I believe the answer is c
6 0
3 years ago
Read 2 more answers
Hi Math do please I don’t want fail :(
NeX [460]

Answer:

Step-by-step explanation:

(2 , 1)  ; ( 3 , 2)

Slope =\dfrac{y_{2}-y_{1}}{x_{2}-x_{1}}\\\\=\dfrac{2-1}{3-2} =\dfrac{1}{1}\\\\=1

Equation of line: y = mx +b

y = 1x + b

Plugin x = 2 and y = 1 in the above equation

1 = 2 + b

1- 2 = b

b = -1

y = 1x - 1

6 0
3 years ago
The ratio of red paint to blue paint is 2:1. What does the ratio 2:1 mean?
Artemon [7]
This means the for every 2 units of red paint, there is 1 unit of blue paint
exg
in a mixture, mix a red and blue paint to get a type of purple that is the ratio of 2:1 (red:blue)
so exg if you wanted 3 gallons you would do 2 gallons of red+1 gallon of blue since 2+1=3
it could also mean quantity
there are 2 tiles painted red for every 1 tile painted blue resulting in 2 unit of red paint to 1 unit of blue

4 0
4 years ago
Emma needs some steel bolts to finish a patio deck project. If five steel bolts cost
Citrus2011 [14]

Answer:

Step-by-step explanation:

$24.5

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