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3 years ago

A plane can fly 11 miles per minute the plane will fly 6 trips and eat shrimp is 500 miles how many hours will the plane fly

Mathematics

1 answer:

Citrus2011 [14]3 years ago

3 0

If i understand the question correctly the plane will fly 6 trips of 500 miles each trip.

Number of minutes it takes the plane to fly 500 miles

= 500 / 11

= 45.45 minutes

For 6 trips this = 45.45 * 6 = 272.73 minutes

= 4.55 hours to nearest hundredth.

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The formula to find the volume of a sphere is V=3.14r^3 where r is the

aniked [119]

divide by 3.14 on both sides first.

V/3.14 = r^3

Now cube root both sides.

3√(V/3.14) = r

r = 3√(V/3.14)

r is the cube root of v/3.14.

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3 years ago

Dalton's dad rode his bike 1 kilometer north,1 kilometer west,1 kilometer south,and 2 kilometer east.How many total kilometers w

Georgia [21]

1 + 1 + 1 + 2 = 5

5 x 9 = 45

Therefore, the total number of km is 45.

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3 years ago

A rectangular storage container with a lid is to have a volume of 2 m3. The length of its base is twice the width. Material for

Scilla [17]

Answer:

Dimensions are 2 m by 1 meter by 1 meter,

Minimum cost is $ 18.

Step-by-step explanation:

Let w be the width ( in meters ) of the container,

Since, the length is twice of the width,

So, length of the container = 2w,

Now, if h be the height of the container,

Volume = length × width × height

2 = 2w × w × h

1 = w² × h

$\implies h=\frac{1}{w^2}$

Since, the area of the base = l × w = 2w × w = 2w²,

Area of the lid = l × w = 2w²,

While the area of the sides = 2hw + 2hl

= 2h( w + l)

$= 2\times \frac{1}{w^2}(w+2w)$

$=\frac{6w}{w^2}$

$=\frac{6}{w}$

Since, Material for the base costs $1 per m². Material for the sides and lid costs $2 per m²,

So, the total cost,

$C(w) = 1\times 2w^2+2\times 2w^2 + 2\times \frac{6}{w}$

$=2w^2+4w^2+\frac{12}{w}$

$=6w^2+\frac{12}{w}$

Differentiating with respect to w,

$C'(w) = 12w -\frac{12}{w^2}$

Again differentiating with respect to w,

$C''(w) = 12 + \frac{24}{w^3}$

For maxima or minima,

C'(w) = 0

$\implies 12w -\frac{12}{w^2}=0$

$\implies 12w^3 - 12=0$

$w^3-1=0\implies w = 1$

For w = 1, C''(w) = positive,

Hence, for width 1 m the cost is minimum,

Therefore, the minimum cost is C(1) = 6(1)²+12 = $ 18,

And, the dimension for which the cost is minimum is,

2 m by 1 meter by 1 meter.

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3 years ago

You deposit $1500 in an account that pays 6% interest compounded yearly. Find the balance after 5 years.

Inga [223]

Answer:

1950

Step-by-step explanation:

p: 1500

r: 0.06

n: 1

t: 5

1500(1+ 0.06/1)^5

1500(1.06)^5

1500×1.3

1950

3 0

3 years ago

Find the discriminant of the equation and give the number and type of solutions of the equation 4x^2+2x-5=0

nlexa [21]

Answer:

The answer is 84.

Step-by-step explanation:

The given equation is

4x*2 + 2x -5 = 0

Here a= 4, b= 2, c= -5

Since Discriminant= b*2 -4ac

Putting values

Discriminant= (2)*2 - 4(4)(-5)

= 4 + 80

= 84

Since our Discriminant(84) is >0 and is not a perfect square so the roots of the given equation are unequal and irrational(real).

4 0

3 years ago