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oee [108]
3 years ago
9

How do you know if a given radical expression is a perfect cube?

Mathematics
1 answer:
Natali [406]3 years ago
5 0
If the result of the radical expression is a natural (whole) number
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Find the equation of a parabola that has a vertex of (3,2) and contains the point (4,7)
zvonat [6]

Answer:

y = 5(x - 3)² + 2

Step-by-step explanation:

y = a(x - h)² + k

y = a(x - 3)² + 2

7 = a(4 - 3)² + 2

a = 5

y = 5(x - 3)² + 2

7 0
3 years ago
Through: (-3, -4) and (2, 1)
aleksandr82 [10.1K]

Answer:

y = 1x - 1

Step-by-step explanation:

\frac{y2-y1}{x2-x1}\\\frac{1-(-4)}{2-(-3)}\\\frac{1+4}{2+3}\\\frac{5}{5}=1\\y=1x+b\\1=1(2)+b\\1 = 2 + b\\-1 = b\\y = 1x-1

5 0
3 years ago
The area of a rug is 36 one fourth square feet. The rug is 8 three fourths feet long. What is the length of the rug
Talja [164]
Given: 

Area = 36 1/4 = 36.25 ft^2
Length = 8 3/4 = 8.75 ft

Unless this is a trick question, where the length can be found in the given values of the problem (where the answer would simply be L = 8.75ft), let us solve for the missing measurement, which is the width. A rug is rectangular, so to obtain the width, the area must be divided by the length. This is shown below:

Width = Area / Length
Width = 36.25 / 8.75
Width = 4.14 ft.
4 0
3 years ago
What is the solution to this inequality? −8x>−2x−13 Enter your answer, using interval notation
exis [7]

−8x>−2x−13

-6x  > -13

  x < 13/6

Answer

(-∞ , 13/6)   <--------using interval notation

5 0
3 years ago
How much money does a newspaper delivery person get per year?
Vadim26 [7]

That depends on numerous factors, including how many papers must be delivered every day, and how many days/weeks/months per year are involved. Strictly as a guess: you'd probably earn between $8 and $16 per hour. If you were to deliver papers for 2 hours each day, that'd come to $112-$224 per 7-day week. And so on. Ask for specifics applying to your city / delivery area.



8 0
3 years ago
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