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3 years ago

What is the square root of 225 and 226? Also what is a short cut I could use to figure this out more easily?

2 answers:

8 0

Square root of 225: 15
Square root of 226: 15.0332963784

A shortcut is by thinking of what two same numbers equals the number you are trying to find the square root for.

Reptile [31]3 years ago

6 0

The square root of 255+266 is 241. I can't help you with shortcuts as I'm bad at explaining, but I'm sure there are websites that can help you.

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What is the simplest form of this expression?<br> -(х – 2)(3х2 + 4х-5)

skad [1K]

Answer:

Step-by-step explanation:

3x^2 * -x =-3x^3

3x^2 * 2. =6x^2

4x* -x =-4x^2

4x * 2 = 8x

-5 * -x = 5x

-5 * 2 = -10

6x^2 + -4x^2 = 2x^2

8x+5x = 13 x

Ans: -3x^3 + 2x^2 + 13x -10

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3 years ago

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A dome of a building is in the form of a hemisphere from inside it was whitewashed at the cost of rupees 4989.60 if the cost of

Luda [366]

Answer: $249.48\ m^2; 369.168\ m^3$

Step-by-step explanation:

Given

Cost of white-washing =Rs. 4989.60

Rate =20 per meter square

So, inside area of = $\dfrac{4989.60}{20}=249.48\ m^2$

The surface area of dome= $4\pi\ r^2=249.48$

$4\times 3.142\times r^2=249.48\\r^2=\frac{249.48}{4\times 3.142}=19.85\\r=4.455\ m$

The volume of air in the dome $V=\frac{4}{3}\pi r^3$

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2 years ago

What is y+2=-4(X-6) in Ax+By=C form

PSYCHO15rus [73]

Y+2=-4x+24
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3 years ago

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Reil [10]

Slope is also known as rise over run -
$\frac{rise}{run}$
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2 years ago

PLEASE HELP! What is the congruence correspondence, if any, that will prove the given triangles congruent?

dalvyx [7]

Answer is C hope this helps

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2 years ago

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