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3 years ago

Express1715asа apercentage

Mathematics

1 answer:

Reika [66]3 years ago

3 0

Answer:

17 would be 0.17

15 would be 0.15

Step-by-step explanation:

all you have to do is move the decimal 2 places to the left

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A or D i'm having a little trouble with this

sergeinik [125]

I believe it’s D bc I went over A and it doesn’t add up

3 0

3 years ago

HELP PLEASE WILL GIVE BRAINLISET

omeli [17]

Answer:

300 calories

Explanation:

ran total : 11,775 feet

perimeter of circle : 2 π r

Here radius:

diameter/2

150/2

75 ft

perimeter of track = 2 π r = 2 (3.14) (75) = 471 ft

total laps ran:

11,775/471

25 laps

So calories burnt:

25* 12

300 calories

4 0

2 years ago

Read 2 more answers

Find the solution of the problem (1 3. (2 cos x - y sin x)dx + (cos x + sin y)dy=0.

lakkis [162]

Answer:

$2*sin(x)+y*cos(x)-cos(y)=C_1$

Step-by-step explanation:

Let:

$P(x,y)=2*cos(x)-y*sin(x)$

$Q(x,y)=cos(x)+sin(y)$

This is an exact differential equation because:

$\frac{\partial P(x,y)}{\partial y} =-sin(x)$

$\frac{\partial Q(x,y)}{\partial x}=-sin(x)$

With this in mind let's define f(x,y) such that:

$\frac{\partial f(x,y)}{\partial x}=P(x,y)$

and

$\frac{\partial f(x,y)}{\partial y}=Q(x,y)$

So, the solution will be given by f(x,y)=C1, C1=arbitrary constant

Now, integrate $\frac{\partial f(x,y)}{\partial x}$ with respect to x in order to find f(x,y)

$f(x,y)=\int\ 2*cos(x)-y*sin(x)\, dx =2*sin(x)+y*cos(x)+g(y)$

where g(y) is an arbitrary function of y

Let's differentiate f(x,y) with respect to y in order to find g(y):

$\frac{\partial f(x,y)}{\partial y}=\frac{\partial }{\partial y} (2*sin(x)+y*cos(x)+g(y))=cos(x)+\frac{dg(y)}{dy}$

Now, let's replace the previous result into $\frac{\partial f(x,y)}{\partial y}=Q(x,y)$ :

$cos(x)+\frac{dg(y)}{dy}=cos(x)+sin(y)$

Solving for $\frac{dg(y)}{dy}$

$\frac{dg(y)}{dy}=sin(y)$

Integrating both sides with respect to y:

$g(y)=\int\ sin(y) \, dy =-cos(y)$

Replacing this result into f(x,y)

$f(x,y)=2*sin(x)+y*cos(x)-cos(y)$

Finally the solution is f(x,y)=C1 :

$2*sin(x)+y*cos(x)-cos(y)=C_1$

7 0

3 years ago

What type of triangle would this be?

lesya [120]

Sorry i really don’t know if i knew i would be more then happy to help

3 0

3 years ago

A bus has 15 passengers. At the first stop, 5 passengers board the bus and 2 passengers get off the bus. At the second stop, 3 p

andrezito [222]

Stop 1 : -

15 + 5 = 20

20 - 2 = 18

So, on the first stop 18 passengers were left on the bus going to the next stop.

Stop 2 : -

18 + 3 = 21

21 - 15 = 6

So, 6 passengers get off at the 2nd stop.

Hope I helped ya!!

8 0

3 years ago

Express1715asа apercentage​

Express1715asа apercentage