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Type: Posts; User: Brynlee

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    Thank you!!

    Thank you!!
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    SAT Subject test Math level 2 Vectors

    SAT Subject test Math level 2 Vectors

    Which of the following is the vector 2a+b given that a=(0,-2) and b=(1,-4)?

    (A) (0,8)
    (B) (-1,8)
    (C) (1,8)
    (D) (-1,-8)
    (E) (1,-8)
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    Thank you!!:D

    Thank you!!:D
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    Vectors SAT Subject test Math level 2

    Vectors SAT Subject test Math level 2

    Which of the following is the vector a-b given that a=(1,-2) and b=(3,-4)?

    (A) (2,-2)
    (B) (-2,2)
    (C) (-2,-2)
    (D) (2,2)
    (E) (3,8)
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    Thank you!:)

    Thank you!:)
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    Logarithms SAT Subject test Math level 2

    Logarithms SAT Subject test Math level 2

    Which of the following is the value of c given that log_{c}25=2 ?

    (A) 2^{25}
    (B) 25^2
    (C) \sqrt{25}
    (D) \sqrt{2}
    (E) \frac{2}{25}
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    Thanks Thomas

    Thanks Thomas
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    Hyperbola Subject test Math level 2

    Hyperbola SAT Subject test Math level 2

    Which of the following is a point of intersection between the hyperbola \frac{x^2}{4}-\frac{y^2}{25}=1 and the x-axis?

    (A) (2,0)
    (B) (4,0)
    (C) ...
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    The inequality |x|>a \ where \ a>0 is equivalent...

    The inequality |x|>a \ where \ a>0 is equivalent to x<-a \ or \ x>a.

    In our case the inequality |x+4|>5 is equivalent to x+4<-5 \ or \ x+4>5

    |x+4|>5 \Rightarrow x+4<-5 \ or \ x+4>5...
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    Inequalities involving absolute values can be...

    Inequalities involving absolute values can be considered as either conjunctions or disjunctions.
    For example the absolute value inequality |x|<a / where / a>0 is equivalent to the conjunction ...
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    First we must find the slope of the line 2x+3y=9...

    First we must find the slope of the line 2x+3y=9 . Thus, we must rewrite the equation to slope-intercept form i.e. y=ax+b where a is the slope.

    So, the equation can be written as 2x+3y=9...
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    Thank you Jack!

    Thank you Jack!
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    sat math even odd numbers

    X,Y,Z and W are integers and X(Y+ZW) is odd . Why X cannot be even?
    Thanks
  14. Thread: sat functions

    by Brynlee
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    1,695

    sat functions

    I need help with the following question,please.
    If the function f(x) represents a straight line and its known that f(2)=3 and f(-1)=4, find the value of f(10) .


    Thanks
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    :DThank you Jack!!:D

    :DThank you Jack!!:D
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    sat math functions

    If f(x)=-x+4 and f(h(2))=10, which of the following could be the function h(x).


    (A) h(x)=-x+4
    (B) h(x)=5x
    (C) h(x)=-2x-2
    (D) h(x)=-6x
    (E) h(x)=10
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    Thank you Thomas!!:)

    Thank you Thomas!!:)
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    Probability question

    SAT math Probability question


    In a box of 9 marbles, 3 are white. Find the probability of three marbles chosen from the box are all white?

    Thanks!!:)
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    Thanks Thomas!!

    Thanks Thomas!!
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    SAT math probability

    SAT math probability question

    If a and b are two distinct positive integers where a + b = 6. What is the probability that a equals 2?

    Thanks!!:):)
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    Thank you miranda!!:D

    Thank you miranda!!:D
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    SAT math - order of operations

    SAT mathematics - Order of operations

    Can anyone help me with the following simplification:

    3-10\div 5\times 4-1+(4-5\times 2)^2

    Thanks!;)
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    Thanks miranda!:)

    Thanks miranda!:)
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    Thank you miranda!!:o

    Thank you miranda!!:o
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    SAT math - Solving simple surd equation

    SAT-Solving simple surd equation

    How to solve the following surd equation

    \sqrt{a}-4=5 ??

    Thanks:o
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