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Ksenya-84 [330]
3 years ago
11

An isosceles triangle two sides equal is placed on top of the square as shown in the picture if the two equal sides are 22 ft lo

ng and each side is 39 ft
Mathematics
1 answer:
zmey [24]3 years ago
6 0

Answer:

what we have to find , please complete the question

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A jar made of 3/16-inch-thick glass has an inside radius of 3.00 inches and a total height of 6.00 inches (including the bottom
Nady [450]

Answer:

a) 0.012ft³

b)2.09 lb

c)0.791 lb

d) 0.012ft³

e) 6 inches

Step-by-step explanation:

a) To determine the volume of the shell of the jar we must determine the volume of the hollow cylinder:

V=3.1416\cdot{h}\cdot{(R^2-r^2)

Where r is the inside radius and R the outer radius.

V=3.1416\cdot{6}\cdot{(3.1875^2-3^2)=21.87

convert to cubic ft:

=21.87\cdot{0.0005787}=0.01266

The volume of the glass shell is 0.012 ft³

b) The weight of the cylinder can be determined because we have the volume and the density. Weight is defined as the product of volume and density:

M=p\cdot{v}=165\cdot{0.01266}=2.09

The weight of the jar is 2.09 lb

c) The displacement of water is just the density of water mutliplied by the volume of the jar:#

=0.01266\cdot{62.5}=0.79

0.791 lb of water will be displaced.

d) The volume of the water displaced is:

[tex]=0.791/62.5=0.01266

e) The jar will be fully submerged because the density of the jar is larger than water.

5 0
3 years ago
Duncan cycled from Town A to Town B at a speed of 12 km/h. He took 3 hours to cover of the trip. Find the distance between the t
madam [21]
If he travels 12km/h for 3 hours then he went 36km in 3hr. The answer is 36km.

5 0
3 years ago
Read 2 more answers
The length of a rectangle is 2 feet more than 5 its width. The perimeter is 52 feet. Find the dimension of the rectangle
Ber [7]

Answer: The length is 22 feet. The width is 4 feet.

Step-by-step explanation: Create an equation for the length: 2+5w=52.

Now combine the two sides to get 4+10w=52. Plug in some numbers that seem reasonable. I started with 4, checked my work and found that it was right. This problem is all about trial and error.

So, 4+10(4)= 44. Make sure to remember the width, so add 4 for each side: 44+8. 44+8=52. Hope this helps :)


4 0
3 years ago
Read 2 more answers
Sin(x-y) if cos x =8/17 and cos y = 3/5
Dima020 [189]
\sin(x-y)=\sin x\cos y-\sin y\cos x

Since \cos x=\dfrac8{17}, you have

\sin x=\sqrt{1-\cos^2x}=\sqrt{1-\left(\dfrac8{17}\right)^2}=\dfrac{15}{17}

and since \cos y=\dfrac35, you have

\sin y=\sqrt{1-\cos^2y}=\sqrt{1-\left(\dfrac35\right)^2}=\dfrac45

So,

\sin(x-y)=\dfrac{15}{17}\times\dfrac35-\dfrac45\times\dfrac8{17}=\dfrac{13}{85}

Note that this assumes that both \sin x and \sin y are positive, or 0.
6 0
3 years ago
PLEASE HELP!!!
dmitriy555 [2]
Since this is a cube, we can use the volume formula for a cube.

Volume=s^3

s is the lenght of one of the edges of the cube.
The edge of the cube has a length of 4.2 in. Let's plug it into the formula.

Volume=(4.2 in)^3
=74.088in^3

That's your answer. I hope this helps! :)
3 0
3 years ago
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