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Svetradugi [14.3K]
3 years ago
5

Simplify − 2/3 − 3/5 .

Mathematics
2 answers:
zzz [600]3 years ago
4 0
-19/15 

you multiply boh sides by the other denomonater

-10           and -9
15                   15
Irina-Kira [14]3 years ago
3 0
<span><span><span>−2/</span>3</span>−<span>3/5</span></span><span>=<span><span><span>−2/</span>3</span>−<span>3/5</span></span></span><span>=<span><span><span>−2/</span>3</span>+<span><span>−3/</span>5</span></span></span><span>=<span><span><span>−10/</span>15</span>+<span><span>−9/</span>15</span></span></span><span>=<span><span><span>−10</span>+<span>−9/</span></span>15</span></span><span>=<span><span>−19/</span>15</span></span><span>(Decimal: -1.266667)</span>
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A cylindrical container of height 28cm and diameter 18cm is filled with water.The water is then poured into another container wi
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Asked on December 20, 2019 by

Ziya Vïvəķ

A cylindrical container with diameter of base 56cm contains sufficient water to submerge a rectangular solid of iron with dimensions (32×22cm×14cm). Find the rise in the level of water when the solid is completely submerged.

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ANSWER

Given,

Diameter of the base of the cylindrical container d=56 cm

Hence, radius of the base of the cylindrical container r=

2

56

=28 cm

Dimensions of rectangular solid is (32 cm×22 cm×14 cm)

We know that when a body is completely submerged in a container containing water,

the rise in the volume of water in the container is equal to the volume of the body.

Let, the water rises to a height h.

Hence,

Volume of water rises in cylindrical container =Volume of the rectangular solid

πr

2

h=32×22×14 cm

3

7

22

×(28)

2

×h=9856 cm

h=

22×784

9856×7

cm

h=4 cm

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A low-wattage radio station can be heard only within a certain distance from the station. On the graph below, the circular regio
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For the answer to the question above, 
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An object moves in simple harmonic motion with period 8 seconds and amplitude 6 cm. At time t = 0 seconds, its displacement d fr
Vladimir79 [104]

In the equation model, the simple harmonic motion is d=6sin(πt/4)-6 if the object moves in simple harmonic motion with a period of 8 seconds and amplitude of 6 cm.

<h3>What is simple harmonic motion?</h3>

Simple Harmonic Motion is described as a motion in which the restoring force is proportionate to the body's displacement from its mean position.

We have:

Amplitude A = 6 cm

Time period = 8 seconds

T = 2π/w

8 = 2π/w

w = π/4

Its displacement d from rest is -6 cm, and initially, it moves in a positive direction.

d(0) = -6 cm at t = 0

The equation becomes:

\rm d = 6sin(\dfrac{\pi}{4}t)-6

Thus, in the equation model, the simple harmonic motion is d=6sin(πt/4)-6 if the object moves in simple harmonic motion with a period of 8 seconds and amplitude of 6 cm.

Learn more about the simple harmonic motion here:

brainly.com/question/17315536

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