PSAT #1, Section 3, #13
If r>0 and (9r/2)^(1/3) = (1/2) r, what is the value of r?
Can you do Test 5 number 19 from the no calculator section?
how can you use plug-in for #13 on page 607?
Please answer #23 in test 2 section 4.
Please work problem # 38 in Test 2, Section 4.
Test 1 Section 3 Number 20
If x2 + y2 = 14 and xy = 3, which of the following is equal to (x + y)^2?
Could you go step by step?
Please explain #13, test 1, Section 3.
if 0 x y and x/y=r which of the following must be equal to x+y/x
(A) 1 over (r + 1)
(B) r over (r + 1)
(C) (r +1) over (r minus 1)
(D) (r + 1) over r
(E) r plus 1
can you please explain how the answer is D.
if a^2-2ab+b^2=ab which of the following is equivalent to a^2+b^2
the answer is 3ab but i dont know how
If x/y=2 and z/x=4, what is the value of x+y+z/x?
A 4 1/2
B 5
C 5 1/2
D 6
E 7
If x-y+z=10 and -x+y=3 what is the value of z?
A) 13
B) 7
c) 10/3
D) -7
E) -13