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3 years ago

The resale value of a certain car when purchased new is $20,000. The car is expected to lose 10% of its value each year.

Mathematics

1 answer:

UNO [17]3 years ago

3 0

Answer:

The red graph. y intercept is at 20k and is decreasing

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A soccer field has a perimeter of 326 metres. Its area is 6370 square metres. What are the dimensions of the field?

Burka [1]

Answer:

Step-by-step explanation:

chiều dài:x,x>0

chiều rộ:y

$\left \{ {({x+y)*2=326} \atop {xy=6370}} \right.$

$\left \{ {{x+y=163} \atop {xy=6370}} \right.$

$\left \{ {{y=163-x} \atop {xy=6370}} \right.$

$\left \{ {{y=163-x} \atop {x*(163-x)=6370}} \right.$

$\left \{ {{y=163-x} \atop {163x-x^{2} =6370}} \right. \\$

$\left \{ {{y=163-x} \atop {x_{1} =98; x_{2} =65}} \right.$

$\left \{ {{y=65} \atop {x=98}} \right.$

4 0

3 years ago

A composite figure is formed from a cone and a cylinder with the same base radius, and its volume can be calculated by multiplyi

olga55 [171]

The composite figure comprises of a cone balanced on top of cylinder

Step-by-step explanation:

The composite figure is formed from a cone and a cylinder with the same base radius, Let the base radius be r

Then the volume of the cone will be $V_{cone}$

Then the volume of the cylinder will be $V_{cylinder}$

$V_{cylinder} = \pi r^{2} h_{cylinder}$

The total volume of the composite figure will be V, where

$V= V_{cone} + V_{cylinder}$

$V = \frac{1}{3} \pi r^{2} h_{cone} +\pi r^{2} h_{cylinder}$

let the height of cone and cylinder be same

The volume of the composite figure will be $\frac{4}{3} \pi r$ $r^{2} h$

Hence $\frac{4}{3} = \frac{a}{b}$

Thecomposite figure comprises of a cone balanced on top of cylinder

3 0

4 years ago

merlin worked these hours during the week: 4.5, 8.75, 9.5, 9, and 4.25 hours. what was his gross pay for the week, if he makes $

Usimov [2.4K]

Hello,

as 4.5+8.75+9.5+9+4.25=36 and 36*9.78=352.08

King'Arthur must pay him $352.08

5 0

3 years ago

Read 2 more answers

I need the answer ? how can I solve the problem ?

Ilya [14]

Answer:

use the standard equation of parabola.

3 0

3 years ago

PLEASE HELP ASAP!!! BRAINLEST!!

djyliett [7]

Answer:

They are not congruent because they are not facing the same way.

Step-by-step explanation:

SAS stands for "side, angle, side" and means that we have two triangles where we know two sides and the included angle are equal. If two sides and the included angle of one triangle are equal to the corresponding sides and angle of another triangle, the triangles are congruent.

That is which postulate proves congruency.

Please make this Brainliest.

3 0

3 years ago

Read 2 more answers