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postnew [5]
4 years ago
8

Why is 3 over 12 rational

Mathematics
1 answer:
mart [117]4 years ago
3 0
3 over 12 is rational because it is a terminating decimal. Meaning that it ends.
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stepan [7]
LxWxH so 9 units x 3 units x 7 units equals 189 units cubed.
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3 years ago
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The radius of a sphere is multiplied by . What effect does this have on the volume of the sphere? A. The volume of the sphere is
Greeley [361]

Answer:

Option A. The volume of the sphere is multiplied by 1/343.

Step-by-step explanation:

The volume of a sphere can be obtained by the following formula:

V = 4/3πr^3

Let the initial volume (V1) of the sphere be:

V1 = 4/3πr^3 = (4πr^3)/3

Now, if we multiply the radius by 1/7, then the new volume (V2) of the sphere will be:

V2 = 4/3 x π x (1/7r)^3

V2 = 4/3 x π x 1/343r^3

V2 = (4πr^3)/1029

Now we determine the ratio of V2 : V1 as shown below:

V2/V1 = (4πr^3)/1029 ÷ (4πr^3)/3

V2/V1 = (4πr^3)/1029 × 3/(4πr^3)

V2/V1 = 3/1029

V2/V1 = 1/343

V2 = 1/343 x V1

Therefore, the volume of the sphere is multiplied by 1/343.

3 0
3 years ago
Penny and her two friends each ate 1/6 of cake . how much cake did they eat
Tanya [424]
Penny + 2 friends = 3 people

3(1/6) = 3/6 = 1/2

They ate 1/2 of the cake.
4 0
3 years ago
Determine which of the following is a solution to y > -x^2 + 4x - 6 by graphing.
Rina8888 [55]
The answer is letter B
Since the line of the parabola is NOT included in the answer you cannot include any answer that lies on the line.
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What is magma? a. The molten mixture of rock-forming substances, gases, and water from the mantle.. c. Hardened lava on the surf
Sliva [168]

Answer: A. The molten mixture of rock-forming substances, gases, and water from the mantle

Magma is a mass of molten rock that is found in the deepest layers of the Earth at high temperature and pressure, and that can flow out through a volcano.

The composition of this mass is a mixture of liquids, volatile and solids that when they reach the surface in an eruption becomes lava, which when cooled crystallizes and gives rise to the formation of igneous rocks.

3 0
3 years ago
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