Solve the equation 3x2 - 20x = 7.
Question 1
Solve the equation 3x2 - 20x = 7.
Select one:
A.
-1/3, 3
B.
1/20, -1/3
C.
-1/3, 7
D.
-3, 7
E.
7/3, 7/20
Question 2
Compute the discriminant of the
equation 
.
What does the discriminant indicate about the kinds of solutions?
Select one:
A.
57; two unequal irrational solutions
B.
-57; no real solution
C.
39; two unequal irrational solutions
D.
48 ; two unequal rational solutions
E.
60 ; two unequal rational solutions
Question 3
Solve the polynomial
equation: 
Select one:
A.
-4 , 4
B.
0, 4
C.
0, -16, 16
D.
0 , -2 , 2
E.
0, -4 , 4
Question 4
Solve the radical equation:
Select one:
A.
-3, 8
B.
-8
C.
8
D.
-3
E.
6
Question 5
Solve the equation: 
Select one:
A.
4
B.
-1
C.
3
D.
512
E.
None of the above.
Question 6
Solve the inequality:
-4x + 1 ≥ -5x + 5.
Select one:
A.
(6, ∞)
B.
(-∞, 4]
C.
[4, ∞)
D.
(-∞, 4]
E.
(-4, 4]
Question 7
Solve the inequality:
Select one:
A.
-2 ≤ x < -4
B.
-4 < x ≤ -2
C.
-4 ≤ x < -2
D.
-4 ≤ x ≤ 2
E.
-4 < x < 2
Question 8
A company makes and sells blank
cassette tapes. The weekly fixed cost is $10,000. and it costs an
additional $0.40 to make each tape. If the tapes sell for $2.00 each, how
many tapes must be produced and sold each week for the company to make a
profit. [Note: Profit occurs when total revenue exceeds total
costs.]
Select one:
A.
More than 800
B.
More than 2400
C.
More than 6000
D.
More than 6250
E.
None of the above
Question 9
After a 60% reduction, a jacket sells
for $20. What was the original price?
Select one:
A.
$32
B.
$70
C.
$50
D.
$120
E.
None of the above
Question 10
A
rectangular park is 4.5 miles long and 2.2 miles wide. How long is a
pedestrian route that runs diagonally across the park? Round off the the
nearest mile.
Select one:
A.
3 miles
B.
4 miles
C.
5 miles
D.
6 miles
E.
Can't be determined from the
information given.
Comments
Post a Comment