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If h(x) = |3x| + 2 and g(x) = x^2 – 7 and g(m) = 29, what is

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Math Expert
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V
Joined: 02 Sep 2009
Posts: 58340
If h(x) = |3x| + 2 and g(x) = x^2 – 7 and g(m) = 29, what is  [#permalink]

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New post 28 Jan 2019, 03:57
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GMAT Club Legend
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D
Joined: 18 Aug 2017
Posts: 4999
Location: India
Concentration: Sustainability, Marketing
GPA: 4
WE: Marketing (Energy and Utilities)
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Re: If h(x) = |3x| + 2 and g(x) = x^2 – 7 and g(m) = 29, what is  [#permalink]

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New post 28 Jan 2019, 06:37
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Bunuel wrote:
If \(h(x) = |3x| + 2\) and \(g(x) = x^2 - 7\) and \(g(m) = 29\), what is the value of \(h(m)\)?

A. 19
B. 20
C. 21
D. 22
E. 28



g(m) = m^2-7
29=m^2-7
m=+/-6
h(6)= l18l+2
=> 20 IMO B
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Re: If h(x) = |3x| + 2 and g(x) = x^2 – 7 and g(m) = 29, what is  [#permalink]

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New post 06 Jun 2019, 11:17
Bunuel wrote:
If \(h(x) = |3x| + 2\) and \(g(x) = x^2 - 7\) and \(g(m) = 29\), what is the value of \(h(m)\)?

A. 19
B. 20
C. 21
D. 22
E. 28


Hi, sorry for my low QIQ but I am not able to understand the solution.
Need some help...
Manager
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G
Joined: 03 Oct 2012
Posts: 159
Location: India
Concentration: Entrepreneurship, Strategy
WE: Brand Management (Pharmaceuticals and Biotech)
Re: If h(x) = |3x| + 2 and g(x) = x^2 – 7 and g(m) = 29, what is  [#permalink]

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New post 09 Jun 2019, 04:48
Bunuel wrote:
If \(h(x) = |3x| + 2\) and \(g(x) = x^2 - 7\) and \(g(m) = 29\), what is the value of \(h(m)\)?

A. 19
B. 20
C. 21
D. 22
E. 28



Hi Bunuel, can you please post the solution for this problem?
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Re: If h(x) = |3x| + 2 and g(x) = x^2 – 7 and g(m) = 29, what is  [#permalink]

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New post 12 Jun 2019, 03:52
Bombsante wrote:
Bunuel wrote:
If \(h(x) = |3x| + 2\) and \(g(x) = x^2 - 7\) and \(g(m) = 29\), what is the value of \(h(m)\)?

A. 19
B. 20
C. 21
D. 22
E. 28


Hi, sorry for my low QIQ but I am not able to understand the solution.
Need some help...


Hi Bombsante,

Solution may go like this-
Given: g(x)=x^2 - 7
=> g(m)= m^2 - 7
Given : g(m)=29,
=> g(m)= m^2 -7 =29,
=>m^2 =36
=>m = +6 /-6.

Also Given: h(x)=|3x|+2,
to find h(m) =>
h(m)=|3m| +2
=> h(+6)=|3*6| +2 ;h(-6)=|3*(-6)|+2
=|18|+2 : |-18|+2
equals 20 in both cases.

Hope this helps
GMAT Club Bot
Re: If h(x) = |3x| + 2 and g(x) = x^2 – 7 and g(m) = 29, what is   [#permalink] 12 Jun 2019, 03:52
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If h(x) = |3x| + 2 and g(x) = x^2 – 7 and g(m) = 29, what is

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