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emmasim [6.3K]
4 years ago
14

2 1/2 and 1/2 are reciprocals. True or false?

Mathematics
1 answer:
Ilia_Sergeevich [38]4 years ago
6 0

Answer:

False

Step-by-step explanation:

The reciprocal of 1/2 is 2/1.

The reciprocal of 2 1/2 is 2/5

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The answer is most likely C. Cubic meters.
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3 years ago
What are the roots of the equation y=x^2 -5x-24
NikAS [45]
Factor
(x-8)(x+3)

Check:
-8+3=-5
-8*3=-24

Use ZPP
x-8=0
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Final answer: x=-3, x=8
6 0
3 years ago
Write Y=x^2+18x+90 In vertex form
Elena-2011 [213]

Answer:

y = (x + 9)² + 9

Step-by-step explanation:

the equation of a parabola in vertex form is

y = a(x - h)² + k

where (h, k) are the coordinates of the vertex and a is a multiplier

given a parabola in standard form : ax² + bx + c : a ≠ 0

the the x-coordinate of the vertex is

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y = x² + 18x + 90 is in standard form

with a = 1, b= 18 and c = 90

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to find the corresponding y-coordinate substitute x = - 9 into the equation

y = (- 9)² + 18(- 9) + 90 = 81 - 162 + 90 = 9

⇒ y = (x + 9)² + 9 ← in vertex form


6 0
3 years ago
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Step-by-step explanation:

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3 years ago
What does fewer than mean
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Answer:

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Step-by-step explanation:

Hope this helps!

7 0
3 years ago
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