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Type: Posts; User: Brynlee

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by Brynlee
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2
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5,359

Thank you!!
2. ## Thread: SAT Subject test Math level 2 Vectors

by Brynlee
Replies
2
Views
5,359

### 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)
3. ## Thread: Vectors SAT Subject test Math level 2

by Brynlee
Replies
2
Views
2,757

### Thank you!!:D

Thank you!!:D
4. ## Thread: Vectors SAT Subject test Math level 2

by Brynlee
Replies
2
Views
2,757

### 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)

by Brynlee
Replies
2
Views
2,580

Thank you!:)
6. ## Thread: Logarithms SAT Subject test Math level 2

by Brynlee
Replies
2
Views
2,580

### 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}
7. ## Thread: Hyperbola Subject test Math level 2

by Brynlee
Replies
2
Views
2,671

### Thanks Thomas

Thanks Thomas
8. ## Thread: Hyperbola Subject test Math level 2

by Brynlee
Replies
2
Views
2,671

### 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) ...
9. ## Thread: inequality with absolute value

by Brynlee
Replies
2
Views
2,485

### 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...
10. ## Thread: absolute value inequality

by Brynlee
Replies
2
Views
2,635

### 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 ...
11. ## Thread: perpendicular lines SAT math

by Brynlee
Replies
2
Views
2,574

### 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...
12. ## Thread: sat math even odd numbers

by Brynlee
Replies
2
Views
2,059

### Thank you Jack!

Thank you Jack!
13. ## Thread: sat math even odd numbers

by Brynlee
Replies
2
Views
2,059

### sat math even odd numbers

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

by Brynlee
Replies
2
Views
2,073

### sat functions

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
15. ## Thread: sat math functions

by Brynlee
Replies
2
Views
2,072

### :DThank you Jack!!:D

:DThank you Jack!!:D
16. ## Thread: sat math functions

by Brynlee
Replies
2
Views
2,072

### 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

by Brynlee
Replies
2
Views
2,864

### Thank you Thomas!!:)

Thank you Thomas!!:)

by Brynlee
Replies
2
Views
2,864

### 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!!:)
19. ## Thread: SAT math probability

by Brynlee
Replies
2
Views
2,814

### Thanks Thomas!!

Thanks Thomas!!
20. ## Thread: SAT math probability

by Brynlee
Replies
2
Views
2,814

### 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!!:):)
21. ## Thread: SAT math - order of operations

by Brynlee
Replies
2
Views
2,023

### Thank you miranda!!:D

Thank you miranda!!:D
22. ## Thread: SAT math - order of operations

by Brynlee
Replies
2
Views
2,023

### 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!;)
23. ## Thread: SAT Operations inside parentheses

by Brynlee
Replies
2
Views
2,036

### Thanks miranda!:)

Thanks miranda!:)
24. ## Thread: SAT math - Solving simple surd equation

by Brynlee
Replies
2
Views
1,981

### Thank you miranda!!:o

Thank you miranda!!:o
25. ## Thread: SAT math - Solving simple surd equation

by Brynlee
Replies
2
Views
1,981

### 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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