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Trava [24]
3 years ago
6

Julian is a teaching assistant at a local community college. A tutor at the same college works the same hours as Justin but earn

s 15,000 less annually. The sum of of Justin’s annual salary and the titor’s salary is 102,000. How much does each earn
Mathematics
1 answer:
mafiozo [28]3 years ago
3 0
The equation for this would be 2x+15000=102,000
2x=87000
x=43500
julian makes 58500
and tutor makes 43500
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Answer plz fast plz I need help
Marrrta [24]

Answer:

c

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
X^2 + Y^2 +ax + 2y + 3 = 0<br><br> What number is this equation the equation of a circle?
Sav [38]

Answer:

Eq: (x+a/2)²+(y+1)²=(a²-8)/4

Center: O(-a/2, -1)

Radius: r=0.5×sqrt(a²-8)

Mandatory: a>2×sqrt(2)

Step-by-step explanation:

The circle with center in O(xo,yo) and radius r has the equation:

(x-xo)²+(y-yo)²=r²

We have:

x²+y²+ax+2y+3=0

But: x²+ax=x²+2(a/2)x+a²/4-a²/4= (x+a/2)²-a²/4

And

y²+2y+3=y²+2y+1+2=(y+1)²+2

Replacing, we get:

(x+a/2)²-a²/4+(y+1)²+2=0

(x+a/2)²+(y+1)²=a²/4-2=(a²-8)/4

By visual inspection we note that:

- center of circle: O(-a/2, -1)

- radius: r=sqrt((a²-8)/4)=0.5×sqrt(a²-8). This means a²>8 or a>2×sqrt(2)

6 0
3 years ago
Why was I wrong why is this right
shutvik [7]

Answer:

Idk?

Step-by-step explanation:

3 0
3 years ago
Solution set of 3x - ( 2x + 8 )= -6
Hunter-Best [27]
3x - (2x + 8) = -6
3x -2x - 8 = -6
x - 8 = -6
x - 8 + 8 = -6 + 8
x = 2
6 0
3 years ago
I really need the answers as soon as possible. So I hope you answer this
SpyIntel [72]
Ignore bottom one please brainiest. edit: add cubed after the second bracket

8 0
3 years ago
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