1,063 Answered Questions for the topic Pre-Calculus
05/07/18
How do I express c2c2 and c1/c2 in rectangular form given the values below
C1=4/3 (cos 5pi/4 + i sin 5pi/4)
C2= 3 (cos pi/4+ i sin 5pi/4)
Follows
•
2
Expert Answers
•1
![]()
05/07/18
How do I express 5 (cos 4+ i sin 4) in rectangular form?
How do I express 5 (cos 4+ i sin 4) in rectangular form?
Follows
•
2
Expert Answers
•1
![]()
05/07/18
How do I express -8+0i in polar form?
How do I express -8+0i in polar form?
Follows
•
2
Expert Answers
•1
![]()
05/07/18
What is the rectangular form of r=sqrt (5)
What is the rectangular form of r=sqrt (5)
Follows
•
2
Expert Answers
•1
![]()
Pre Calculus
05/06/18
Find the sum of the first 12 positive 3 digit integers ending in 4.
The answer is 1908 and i dont know how
Follows
•
2
Expert Answers
•1
![]()
05/04/18
I am having some trouble writing and solving parametric equations for the word problems below
A. A bullet is shot at a target 200 feet away. If the bullet shot at a height of 5 feet with an initial velocity of 150 f/s at an angle 10° with the horizontal, when will it reach its target and...
more
Follows
•
2
Expert Answers
•1
![]()
05/04/18
How do I find an ordered triple to represent u in each equation if v=(2,-4,5) and w=(6,-8,9)
u=v+w
u=v-w
u=4v+3w
u=5v-2w
05/04/18
How do I write and solve parametric equations for these two word problems?
1) A rock is tossed at an initial velocity of 50 m/A at an angle of 8° from the ground. Acts 0.8 seconds how far will the rock travel horizontally and vertically?
2) A toy rocket is launched at...
more
Follows
•
2
Expert Answers
•1
![]()
05/03/18
How do I find the magnitude and direction of a force?
One force of 100 units acts upon an object. Another force of 80 units acts upon the object at a 40° angle from the first force.
Follows
•
2
Expert Answers
•1
![]()
05/03/18
How do I write the equation of a line in slope intercept form with the given parametric equations?
x=2t+3
y=t-4
Follows
•
2
Expert Answers
•1
![]()
05/03/18
How do I write the equations of the following lines in parametric form?
A. y=3x-8
B. y=-x+4
C. 3x-2y=6
D. 5x+4y=20
Follows
•
2
Expert Answers
•1
![]()
05/03/18
How do I solve this problem on parametric equations?
Write a vector equation of the line that passes through point P and is parallel to a, then write a parametric equation for the line.
P (-2,1), a =(3,-4)
04/26/18
Find an ordered triple to represent in each equation if v=(2,-4,5) and w=(6,-8,9)
A. u=v+w
B. u=v-w
C. u=4v+3w
D. u=5v-2w
Follows
•
2
Expert Answers
•1
![]()
04/26/18
For each pair of points A and , find an ordered pair that represents AB, then find the magnitude of AB
A (2,1,3) B (-4,5,7)
Follows
•
2
Expert Answers
•1
![]()
04/25/18
how do you algebraically find a summation with division inside of it like sigma(1/x) n=4 x=1?
4
Σ(1/x) how do you do this algebraically? The summation properties dont seem to cover this.
x=1
Follows
•
2
Expert Answers
•1
![]()
04/22/18
Write the equation √3x +y-4=0 in normal form to find the angle, Ø , that the normal to the line makes with the positive x-axis
A. 45°
B. 90°
C. 60°
D. 30°
Follows
•
1
Expert Answers
•1
![]()
04/22/18
Find the distance in units between the lines with equations 2x-5y=8 and y=2/5x-3
A. (-23√29)/29
B. (7√29)/29
C. (-7√29)/29
D. (23√29)/29
Follows
•
2
Expert Answers
•1
![]()
If sinØ= -4/5 and Ø terminates in Quadrant III, find the exact value of sin 2Ø
A. 16/25
B. 24/-25
C.24/25
D. -9/25
Follows
•
2
Expert Answers
•1
![]()
Write the equation x+y=5 in normal form to find (cosØ, sinØ)
A. (√2/2, - √2/2)
B. (√2/2, √2/2)
C. (-√2/2, √2/2)
D. (- √2/2, -√2/2)ØØ
Follows
•
2
Expert Answers
•1
![]()
Solve 2sin x-3sinx+1=0 for principal values of x
A. 0°,30°
B. 30°
C. 30°, 90°
D. 0°, 60°
Follows
•
2
Expert Answers
•1
![]()
04/20/18
Zeros of polynomial functions
Factor f(x) into linear factors given that k is a zero of f(x):
1.) f(x)=x^3+(13-3i)x^2+(40-39i)x-120i; k=3i
2.) f(x)=x^4+3x^3-30x^2-124x-120; k=-2 (multiplicity 2)
3. Find a...
more
Follows
•
2
Expert Answers
•1
![]()
Which expression is not equivalent to cos 2 (theta) for all values of theta?
A. cos^2 (theta)-sin^2(theta)
B. 2sin (theta)cos (theta)
C. 1-2sin^2 (theta)
D. 2cos^2 (theta)-1
Follows
•
1
Expert Answers
•1
![]()
Express sin (750°) as a function of an angle in Quadrant I
A. sin(30°)
B. -sin (30°)
C. sin(15°)
D. -sin (15°)
Which expression is equivalent to cos (90°-theta)?
A. sin (theta)
B. -sin(theta)
C. cos (theta)
D. -cos (theta)
Follows
•
2
Expert Answers
•1
![]()
Still looking for help? Get the right answer, fast.
Ask a question for free
Get a free answer to a quick problem.
Most questions answered within 4 hours.
OR
Find an Online Tutor Now
Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.
