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KengaRu [80]
3 years ago
15

Factor completely 3x^2+2x-1

Mathematics
1 answer:
Morgarella [4.7K]3 years ago
4 0

Answer:

(3x - 1)(x + 1)

Step-by-step explanation:

3x^2 factors into 3x and x.

-1 factors into -1 and 1.

Now we try different positions of 3x, x, -1, and 1 until we find the correct factorization.

Try: (3x - 1)(x + 1)

When you multiply the two factors together, the middle term will be 3x - x = 2x

Since 2x is the original middle term, this is the correct factorization.

Answer: (3x - 1)(x + 1)

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Aleksandr [31]
Your answer would be 2s5<49
8 0
4 years ago
Eyjafjallajokull is a volcano in Iceland. In a recent eruption, a projectile is ejected with an initial velocity of 304 feet per
Vikentia [17]

Answer:

A volcano ejected with an initial velocity of 304 feet per second.

The height in feet is given by the equation H=-16t^2+ 304t where t is the time in seconds.

We will use the equation that traces the path of the projectile to determine the following information:

1) The time it takes the projectile to reach its maximum height (using the vertex formula: t=-b/2a)

The equation; H = -16t^2 + 304t, a=-16; b=304

t = -304/2°(-16)

t = 9.5 sec to reach max height

2) The maximum height of the projectile (use the result from part 1 to find the maximum height of the projectile)

t = 9.5

H = -16(9.5^2) + 304(9.5)

h = = -1444 + 2888

h = 1444 ft is the max height

3) Find the time it takes the projectile to return to the ground. Assume that the projectile starts at height H=0.

-16t^2 + 304t = 0

factor out -16t

-16t(t - 19) = 0

t = 19 sec to reach the ground

Step-by-step explanation:

8 0
3 years ago
Please Answer and Show your Work: <br><br> 4x/16 - 3/8 - x/16 = 3/16
Galina-37 [17]
4x/16 - 3/8 - x/16 = 3/16

x/4 - 3/8 - x/16 = 3/16

3x/16 - 3/8 = 3/16

Add 3/8 on both sides

3x/16 = 9/16

Then multiply 16 on both sides

3x = 144/16

3x = 9

Divide 3 on both sides

x = 3
8 0
3 years ago
What is the exact volume of the cone? Radius is 9cm and the height is 6cm.
masha68 [24]

Answer:


The volume of the cone is 508.94

8 0
4 years ago
Need answer please help
PtichkaEL [24]

Answer:

-2/5

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
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