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Hatshy [7]
3 years ago
11

Multiply: (x + 3)(x-4)

Mathematics
1 answer:
Ratling [72]3 years ago
5 0

Answer:

X^2-x-12

Step-by-step explanation:

FOIL

First, Outside, Inside, Last

First: X*X=X^2

Outside: x*-4=-4x

Inside: x*3=3x

Last:3*-4=-12

All together: X^2-4x+3x-12

Simplify: X^2-x-12

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Hence factorize completely the expression<br>9x³y² - 4xy⁴​
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Step-by-step explanation:

9 {x}^{3} {y}^{2}  - 4x {y}^{4}  \\  = x {y}^{2} (9 {x}^{2}  - 4 {y}^{2} )

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3 years ago
How can the Pythagorean Identity be used to find sin θ, cos θ, or tan θ and the quadrant location of the angle?
Archy [21]

First lets see the pythagorean identities

sin^2 \Theta + cos^2 \Theta =1

So if we have to solve for sin theta , first we move cos theta to left side and then take square root to both sides, that is

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Now we need to check the sign of sin theta

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So if theta is in second quadrant, then we have to positive sign but if theta is in third or fourth quadrant, then we have to use negative sign .

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3 years ago
The distance D that a spring is stretched by a hanging object varies directly as the weight W of the object. if a 9-kg object st
sergiy2304 [10]

Answer:

I think it is b

Step-by-step explanation:

7 0
3 years ago
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Answer:

Step-by-step explanation:

n - 66 = -35

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8 0
3 years ago
Read 2 more answers
Can someone help me please?
jarptica [38.1K]

Answer: Circumcenter

Step-by-step explanation: The circumcenter is the point where all perpendicular bisectors of a triangle meet. The 3 perpendicular bisectors of the 3 sides of the triangle meet at the point which is labeled in this triangle as H.

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