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3 years ago

Can someone please help me?

Mathematics

1 answer:

Marina86 [1]3 years ago

8 0

The answer is c. Because it’s the only one that follows that direct formula

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True or false two points that map together never coincide

azamat

False.

2 points that map the borders of a city could meet up at a ridge or valley.

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3 years ago

Write the ratio of 4 girls to 5 boys in 3 different ways

Dafna11 [192]

Answer:

4:5 8:10 16:20

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

The surface of a city playground is being covered with rubber mulch, which is shredded rubber made from recycled tires. A city w

34kurt

The number of bags of mulch that is needed to cover the playground is 3,605 bags.

<h3>How many bags of mulch is needed?</h3>

The first step is to determine the volume of the surface of the city playground. The volume is the product of the length, width and height of the playground.

Volume = length x width x height

4 x 40.5 x 66.75 = 10,813.50 inches³

The second step is to determine the number of bags of mulch that is needed to cover the surface of the playground.

Number of bags of mulch = volume of the playground / volume one bag can cover

10,813.50 inches³ / 3 = 3,604.5 bags ≈ 3,605 bags

To learn more about the volume of a cuboid, please check: brainly.com/question/26406747

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6 0

1 year ago

First-order linear differential equations

kkurt [141]

Answer:

$(1)\ logy\ =\ -sint\ +\ c$

$(2)\ log(y+\dfrac{1}{2})\ =\ t^2\ +\ c$

Step-by-step explanation:

1. Given differential equation is

$\dfrac{dy}{dt}+ycost = 0$

$=>\ \dfrac{dy}{dt}\ =\ -ycost$

$=>\ \dfrac{dy}{y}\ =\ -cost dt$

On integrating both sides, we will have

$\int{\dfrac{dy}{y}}\ =\ \int{-cost\ dt}$

$=>\ logy\ =\ -sint\ +\ c$

Hence, the solution of given differential equation can be given by

$logy\ =\ -sint\ +\ c.$

2. Given differential equation,

$\dfrac{dy}{dt}\ -\ 2ty\ =\ t$

$=>\ \dfrac{dy}{dt}\ =\ t\ +\ 2ty$

$=>\ \dfrac{dy}{dt}\ =\ 2t(y+\dfrac{1}{2})$

$=>\ \dfrac{dy}{(y+\dfrac{1}{2})}\ =\ 2t dt$

On integrating both sides, we will have

$\int{\dfrac{dy}{(y+\dfrac{1}{2})}}\ =\ \int{2t dt}$

$=>\ log(y+\dfrac{1}{2})\ =\ 2.\dfrac{t^2}{2}\ + c$

$=>\ log(y+\dfrac{1}{2})\ =\ t^2\ +\ c$

Hence, the solution of given differential equation is

$log(y+\dfrac{1}{2})\ =\ t^2\ +\ c$

8 0

4 years ago

3/4x - 1 = 1/2x + 7

bazaltina [42]

The answer is D, good night

6 0

3 years ago