The section of the electromagnetic spectrum used for photosynthesis is ___.
A) infrared
B) ultraviolet
C) x-ray
D) visible light

D) visible light

Expert answered|feurem|Points 1266|

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Asked 5/17/2011 8:10:33 AM

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Is (8, -1) a solution of the system, 2x + 3y = 13 and x - y = 9?
A) yes
B) no
**Weegy:** y+4=2x **User:** Is (-2, -5) a solution of the system, 3x + 2y = 4 and 2x - 5y = -29?
A) yes
B) no
**Weegy:** yes **User:** Graph the two equations to solve the system. What is the ordered pair solution?
x + y = 6 and x - y = 4
A) (4, 2)
B) (6, 2)
C) (5, 1)
D) no solution
**Weegy:** What is the solution as an ordered pair?. x = 2y - 2 and 3x - y = 14 we have two equations: x - 2y = -2 and 3x - y = 14 There is equality between both equations, so ... [ ] (More)

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Expert Answered

Updated 5/16/2011 10:03:38 AM

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No, (-2, -5) is NOT a solution of the system, 3x + 2y = 4 and 2x - 5y = -29.

Plug it in: 3(-2) + 2(-5) = 4, which equals -6 + (-10) = 4, which is already not correct. -16 does not equal -4.

YES, (8, -1) is a solution of the system, 2x + 3y = 13 and x - y = 9.

The answer to x + y = 6 and x - y = 4 is C) (5, 1)

Plug it in: 3(-2) + 2(-5) = 4, which equals -6 + (-10) = 4, which is already not correct. -16 does not equal -4.

YES, (8, -1) is a solution of the system, 2x + 3y = 13 and x - y = 9.

The answer to x + y = 6 and x - y = 4 is C) (5, 1)

Added 5/16/2011 10:03:38 AM

Most enzymes end in the suffix ___.
A) -opsin
B) -ase
C) -ose
D) none of these, there is no such rule
**Weegy:** B) -ase **User:** The contraction of muscles is an example of a ___ reaction.
A) coupled
B) exergonic
C) endergonic
D) reversible
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Expert Answered

Asked 5/17/2011 7:44:56 AM

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The contraction of muscles is an example of a ___ reaction.
A) coupled
B) exergonic
C) endergonic
D) reversible

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Updated 5/17/2011 8:15:31 AM

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The process of splitting water to release hydrogens and electrons occurs during the _____ process.
A) light dependent
B) light independent
C) carbon fixation
D) carbon photophosphorylation

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Updated 5/17/2011 8:11:43 AM

1 Answer/Comment

The process of splitting water to release hydrogens and electrons occurs during the _____ process.
A) light dependent
B) light independent
C) carbon fixation
D) carbon photophosphorylation

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Updated 5/17/2011 8:12:02 AM

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