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rewona [7]
3 years ago
10

A dialonal cross section of a sphere produces which two dimesional shape?

Mathematics
1 answer:
stellarik [79]3 years ago
6 0
Regardless of how the sphere<span> is cut, it will form a circle</span>
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Find the volume of the following
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Finding the volume of this will mean that we'll have to know the formula. The formula for finding the volume of a prism is L x W x H. 
L- Lenght
W - Width
H - Height.

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What is 4xy - 5y² - 3x² from 5x + 3y² - xy ? ​
andre [41]

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Simplify the expression 2x+5-x
Len [333]

2x + 5 - x simplified would be...

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8 0
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What are the real zeroes of x3 + 6 x2 – 9x - 54?
o-na [289]

Answer:

Option B 3,-3,-6 is correct.

Step-by-step explanation:

We need to find real zeroes of x^3+6x^2-9x-54

Solving

x^3+6x^2-9x-54\\=(x^3+6x^2)+(-9x-54)

Taking x^2 common from first 2 terms and -9 from last two terms we get

=(x^3+6x^2)+(-9x-54)\\=x^2(x+6)-9(x+6)\\

Taking (x+6) common

(x+6)(x^2-9)\\

x^2-9 can be solved using formula a^2-b^2 = (a+b)(a-b)

=(x+6)((x)^2-(3)^2)\\=(x+6)(x+3)(x-3)

Putting it equal to zero,

(x+6)(x+3)(x-3) =0\\x+6 =0, x+3=0\,\, and\,\, x-3=0\\x=-6, x=-3\,\, and\,\,  x=3

So, Option B 3,-3,-6 is correct.

7 0
2 years ago
The formula for electrical power (P, in watts) is where V is the voltage in volts and R is the resistance in ohms. For a particu
bazaltina [42]

Answer: 4 V

Step-by-step explanation:

The formula for electrical power P is:

P=\frac{V^{2}}{R}

Where:

P=0.5 W is the water heater electrical power

V is he water heater voltage

R=32 \Omega is the electrical resistance

Isolating V:

V=\sqrt{PR}

V=\sqrt{(0.5 W)(32 \Omega)}

Hence:

V=4 V

8 0
2 years ago
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