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stiks02 [169]
2 years ago
10

Round the number 450,023

Mathematics
1 answer:
Pepsi [2]2 years ago
5 0

Answer:

450, 000 or 450, 020

Step-by-step explanation:

If you want to round the number to the ten thousands place then it would be 450, 000.

I you want to round the number to the ones place the it would be 450, 020

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A $30 shirt is marked, "Get 1/3 off. What is the sale price of the shirt?
svlad2 [7]

Answer:

$20 after the applied coupon

Step-by-step explanation:

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Ali finished his history assignment in 1/4
Juli2301 [7.4K]

\frac{1}{4}  \times 3 =  \frac{3}{12}   \frac{2}{3}  \times 4 =  \frac{8}{12}  \\  \frac{3}{12}  +  \frac{8}{12}  =  \frac{11}{12}
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Joyce makes bead bracelets and necklaces and sells them to a store. She charges $5.00 for a bracelet, and $8.00 for a necklace.
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B. 6 Bracelets, 12 Necklaces
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3 years ago
You see Bonnie rock climbing El Capitan. On your telescope is a clinometer. The angle
Marat540 [252]

Answer:

≈ 345.8 ft

Step-by-step explanation:

There is a right triangle formed by Bonnie's height (h) the ground and the angle of elevation.

Using the tangent ratio in the right triangle

tan20° = \frac{opposite}{adjacent} = \frac{h}{950} ( multiply both sides by 950 )

950 × tan20° = h , thus

h ≈ 345.8 ft ( to 1 dec. place )

8 0
3 years ago
Help please:))
Blababa [14]

Answer:

a) Because this asks about the radius and height, I assume that we are talking about a cylinder shape.

Remember that for a cylinder of radius R and height H the volume is:

V = pi*R^2*H

And the surface will be:

S = 2*pi*R*H + pi*R^2

where pi = 3.14

Here we know that the volume is 1000cm^3, then:

1000cm^3 = pi*R^2*H

We can rewrite this as:

(1000cm^3)/pi = R^2*H

Now we can isolate H to get:

H = (1000cm^3)/(pi*R^2)

Replacing that in the surface equation, we get:

S = 2*pi*R*H + pi*R^2

S = 2*pi*R*(1000cm^3)/(pi*R^2) + pi*R^2

S = 2*(1000cm^3)/R + pi*R^2

So we want to minimize this.

Then we need to find the zeros of S'

S' = dS/dR = -(2000cm^3)/R^2 + 2*pi*R = 0

So we want to find R such that:

2*pi*R = (2000cm^3)/R^2

2*pi*R^3 = 2000cm^3

R^3 = (2000cm^3/2*3.14)

R = ∛(2000cm^3/2*3.14) = 6.83 cm

The radius that minimizes the surface is R = 6.83 cm

With the equation:

H = (1000cm^3)/(pi*R^2)

We can find the height:

H = (1000cm^3)/(3.14*(6.83 cm)^2) =  6.83 cm

(so the height is equal to the radius)

b) The surface equation is:

S = 2*pi*R*H + pi*R^2

replacing the values of H and R we get:

S = 2*3.14*(6.83 cm)*(6.83 cm) + 3.14*(6.83 cm)^2 = 439.43 cm^2

c) Because if we pack cylinders, there is a lot of space between the cylinders, so when you store it, there will be a lot of space that is not used and that can't be used for other things.

Similarly for transport problems, for that dead space, you would need more trucks to transport your ice cream packages.

3 0
2 years ago
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