# chizoba

Most popular questions and responses by chizoba
1. ## Need Help Please- Pre-Calc

The coordinates of the five quarter points for y=sin(x) are given below. Use these quarter points to determine the​ y-coordinates of the quarter points of y=5sin(-π/3x). (0,0) (π/2,1) (π,0) (3π/2,-1) (2π,0) (Type ordered pairs. Type exact​

2. ## PreCalc

Approximate the solutions to the following equation on the interval [0,2π). Round your answer to four decimal places. sinθ=0.65 Apparently, there suppose to be two answers to this question with a comma separating​ both answers. I know because I've

3. ## Help me anyone - Pre-Calc

A farmer uses an irrigation sprinkler system that pivots about the center of a circular field. Determine the length of the sprinkler if an area of 2340 square feet is watered after a pivot of 20°. P.S: The formula is A=1/2 theta r^2 Please help me. Thank

Determine the missing coordinate of the point (4/7,y) that lies on the graph of the unit circle in quadrant IV. Please show the steps because I need to solve more. Thank you.

5. ## Pre-calc

HI, can someone can please help me find the coordinates of the two halfway points of the principal cycles. Here are some answers that might help. -I found the interval: (0,pi/2) -The equation of the left vertical asymptote: x=0, and right asy: x=pi/2 -The

6. ## I need help please - Pre-Calc

Using the graph of y=cos(x), list all values of x on the interval [-11π/3,11π/6] that satisfy the ordered pair of (x,-1/radical2). - List all the values of (x,-1/radical2) (Type an exact answer using π as needed. Use a comma to separate answers as

7. ## Pre-calc

-Determine a general formula​ (or formulas) for the solutions to the following equation.​ Then, determine the specific solutions​ (if any) on the interval [0,2pi) -Describe in the most concise way possible the general solution to the given​

8. ## Calc - help needed

Hi, I'm stuck at this question: List all points on the graph of y=tanx on the interval [-3π/2,2π] that have a y-coordinate of (1/radical3). This is my answer, but I keep getting it wrong. Someone, please explain​ how to go about solving this. I have

9. ## Nedd Help Please - PreCalc

The coordinates of the five quarter points for y=sin(x) are given below. Use these quarter points to determine the y-coordinates of the quarter points of y=2sin(1/4x). (0,0) (π/2,1) (π,0) (3π/2,−1) (2π,0) ​(Type ordered pairs. Type exact​

10. ## Pre-calc

Determine a general formula​ (or formulas) for the solutions to the equation. Then determine the specific solutions​ (if any) in the interval[0,2π). 2sin^2θ+3sinθ+1=0

Use identities to find the exact value of the trigonometric expression below. 1/cos2 * π/16 - 1/cot2 * π/16 PS: in words, the problem is, one divided by cosine-squared, then beside the cosine-square (still in the denominator) is pi/16. Minus one divided

Verify that the point ( square root(31)/7, -3square root(2)/7 ) lies on the graph of the unit circle. If it does, use symmetry to find three other points that also lie on the graph of the unit circle. (direction - Type ordered pairs). PS: The -3 is outside

13. ## Reposting question- Pre-calc

HI, Function: y=5cot(-2x) can someone can please help me find the coordinates of the two halfway points of the principal cycles. Here are some answers that might help. -I found the interval: (0,pi/2) -The equation of the left vertical asymptote: x=0, and

14. ## Help on PreCalc

Hi Tutors, I've tried solving the problem below, but I keep getting it wrong. I've solved 3 similar questions thanks to Reiny and Steve, but this one, in particular, is giving me problems. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Use the given information to

15. ## Pre-calc

Hi Steve and Damon, if you're reading this, please take a look at my previous post because I had to apologize for my mistake. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ My Home Work Question: Suppose that α is an angle such that tanα=5/7 and sinα0. Find

16. ## Pre-calc

Determine the ordered pair that lies on the unit circle corresponding to csc(5π/6). Thank you.

17. ## Pre-calc

Use the given information to determine the values of sinθ, cosθ​, and tanθ. tan2θ=7/11 ​; π

18. ## Pre-Calc

Hi, can someone please teach me how to solve this? Find the exact value of the trigonometric expression cos(89)sin(29)+sin(89)sin(29)

19. ## Help- Precalc

Suppose that α is an angle such that tan α=(5/7) and sinα0. Find the exact value of sine(α−β) -Direction (Simplify your​ answer, including any radicals. Use integers or fractions for any numbers in the​ expression.) Please show work + answer,

20. ## Pre-Calc

Hi, Find the exact value of the following expression: Sin^-1(1/radical2) (Its inverse sin(1/radical2) Direction -(Type your answers in interval notation. Type an exact answer using pi as need) Please show how you got the answers so I can use this as a

1. ## Pre-calc

Hi Reiny, those are the choices they gave me. Apparently, I have to pick the right choice and fill it out. Below is the instruction it gave me when I filled out the wrong one. "First, isolate the trigonometric function on one side of the equation. Next

posted on August 16, 2016
2. ## PreCalc

THANK YOU Scott. I did the reverse sin to get .7076 in my calculator. How did you get 2.4340? Sorry if this question should be obvious to me.

posted on August 16, 2016
3. ## math

I believe it's 16

posted on August 16, 2016
4. ## Help on PreCalc

Thank you Reiny

posted on August 15, 2016
5. ## Math

2x-6=3x+1-x-7 Step 1: 2x-6=3x-6-x (how i got -6? 1-7 =-6) step 2: 2x-6=2x-6 (how i got 2x? 3x-x=2x; there's an imaginary 1 in front of x) step 3: Take ONLY the 6 on the left side of the equation, and add it to the 6 on the right side of the equation. So it

posted on August 15, 2016
6. ## Pre-calc

I love you Reiny lol thank you sooo much. Thank you steve.

posted on August 13, 2016
7. ## Pre-calc

THANK YOU GUYS SOOO MUCH, GOD BLESS.

posted on August 13, 2016
8. ## Help- Precalc

Hi Steve, Please accept my apologies. My initial question is wrong. They want me to find cos(α−β), not sine(α−β). I really am sorry. I had the same answer as 5/radical629, but when I typed it in my h/w answer box, it kept saying the answer was

posted on August 13, 2016
9. ## Help- Precalc

Hi Damon, Thanks for finding the time of day to help me. However, I'm not as smart as you are and I'm sure you'll expect me to know the answer. I've tried putting in -5/sqrt74*-3/sqrt34 +7/sqrt74*5/sqrt34 in my calculator, but instead it comes out with a

posted on August 13, 2016
10. ## Pre-Calc

Thank You Steve. I now understand it :)

posted on August 13, 2016
11. ## Pre-calc

This is how the question appears. Determine the ordered pair that lies on the unit circle corresponding to t=5pi/6. I'm sorry for the confusion.

posted on August 11, 2016
12. ## Pre-calc

Oh, I'm sorry, but the give function is y=5cot(-2x)

posted on August 9, 2016