Thank you!!
Type: Posts; User: Brynlee
Thank you!!
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)
Thank you!!:D
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)
Thank you!:)
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}
Thanks Thomas
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) ...
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...
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 ...
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...
Thank you Jack!
X,Y,Z and W are integers and X(Y+ZW) is odd . Why X cannot be even?
Thanks
I need help with the following question,please.
If the function f(x) represents a straight line and it’s known that f(2)=3 and f(-1)=4, find the value of f(10) .
Thanks
:DThank you Jack!!:D
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
Thank you Thomas!!:)
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!!:)
Thanks Thomas!!
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!!:):)
Thank you miranda!!:D
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!;)
Thanks miranda!:)
Thank you miranda!!:o
SAT-Solving simple surd equation
How to solve the following surd equation
\sqrt{a}-4=5 ??
Thanks:o