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Genrish500 [490]
2 years ago
8

Find the Value of x. Someone Help me please for Questions 6 through 9. Ill give Points. :)

Mathematics
1 answer:
PSYCHO15rus [73]2 years ago
8 0

Answer:

6. X= 121

7. x= 18

8. X= 7

9. x= 31

Step-by-step explanation: do u need the steps?

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X 2 + y 2 - 10x - 8y + 1 = 0
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Triangle QRS is plotted in Quadrant I. After a 180° rotation about the origin, which quadrant would its image be? quadrant I qua
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Please answer this to the best of your ability
sweet [91]

f(-2)=1.5

f(0)=0.5

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7 0
3 years ago
Find the center and radius of the sphere whose equation is given by x2+y2+z2−2x−4y+8z+17=0x2+y2+z2−2x−4y+8z+17=0.
Vedmedyk [2.9K]
We know that
the equation of a sphere is
(x-h)²+(y-k)²+(z-l)²=r²
where (h,k,l) is the center and r is the radius

we have
x²+y²+z²<span>−2x−4y+8z+17=0
</span>

Group terms that contain the same variable, and move the constant to the opposite side of the equation

(x²+2x)+(y²-4y)+(z²+8z)=-17
<span>Complete the square. Remember to balance the equation by adding the same constants to each side
</span>(x²+2x+1)+(y²-4y+4)+(z²+8z+16)=-17+1+4+16
(x²+2x+1)+(y²-4y+4)+(z²+8z+16)=4

Rewrite as perfect squares

(x+1)²+(y-2²)+(z+4)²=4

(x+1)²+(y-2²)+(z+4)²=2²

the center is the point (-1,2,-4) and the radius is 2 units




4 0
3 years ago
What is the inequality for 14-3x&lt;-1
Maksim231197 [3]

Answer:

x > 5

Step-by-step explanation:

14 - 3x < -1

-3x < -15

x > 5

5 0
3 years ago
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