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3 years ago

Geometry Help

Mathematics

1 answer:

sergiy2304 [10]3 years ago

7 0

I hope this helps you

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Find the volume of the cone ! HELP

stich3 [128]

Answer:

628

Step-by-step explanation:

So the formula is πr^2h/3

So the height is 6

pie is 3.14

Substitute:

3.14(10)^2 6/3

3.14(100)(2)

3.14(200)

628

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2 years ago

What is the difference? −15 − (−3)

klasskru [66]

The answer is -12 bc you take away the 3

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9 months ago

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What is the solution set for 4x - 3= 2x +5, given the replacement set {2, 3, 4, 5}?

Natalija [7]

Answer:

the answer here is number 4

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2 years ago

Do the following side lengths form a triangle?<br><br> 28, 50, 22

ArbitrLikvidat [17]

I believe they do I’m not fully sure

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2 years ago

PLEASE HELP AND ANSWER!!!!! Which of the following reveals the minimum value for the equation 2x2 + 12x − 14 = 0?

NARA [144]

Answer:

The correct option is 3.

Step-by-step explanation:

The given equation is

$2x^2+12x-14=0$

It can be written as

$(2x^2+12x)-14=0$

Taking out the common factor form the parenthesis.

$2(x^2+6x)-14=0$

If an expression is defined as $x^2+bx$ then we add $(\frac{b}{2})^2$ to make it perfect square.

In the above equation b=6.

Add and subtract 3^2 in the parenthesis.

$2(x^2+6x+3^2-3^2)-14=0$

$2(x^2+6x+3^2)-2(3^2)-14=0$

$2(x+3)^2-18-14=0$

$2(x+3)^2-32=0$ .... (1)

Add 32 on both sides.

$2(x+3)^2=32$

The vertex from of a parabola is

$p(x)=a(x-h)^2+k$ .... (2)

If a>0, then k is minimum value at x=h.

From (1) and (2) in is clear that a=2, h=-3 and k=-32. It means the minimum value is -32 at x=-3.

The equation $2(x+3)^2=32$ reveals the minimum value for the given equation.

Therefore the correct option is 3.

5 0

3 years ago