H Pre-Calculus
There is NO expectation of E-Learning content during Spring Break (March 30th to April 3rd).
Class question: One of your classmates was having difficulty solving #61 from section 9.4. Below is my response to them.
61. Let F1 be the tension on the left, F2 be the tension on the right, and F3 be the force of the tightrope walker's weight. For equilibrium, the sum of all three force vectors must be zero, correct? So, this means:
F1=F1 mag times (cos 175.8i + sin 175.8 j)
F2=F2mag times (cos 3.7i + sin 3.7 j)
F3= -150j
which implies that F1+F2+F3 = 0 (make the substitutions from above and combine like terms).
Set i and j components equal to 0, separately and to solve it, it should resemble a system of equations. This means that you can use elimination or substitution to solve for F1, F2, etc. If the system is solved correctly, F1 = 1089.3 pounds and F2 = 1088.6 pounds.
Ch. 9 Review Exercises: 1, 7, 15, 19, 27, 33, 35, 41, 49, 52, 55 5, 12, 16, 20, 21, 32, 37, 43, 47, 53, 56
61. Let F1 be the tension on the left, F2 be the tension on the right, and F3 be the force of the tightrope walker's weight. For equilibrium, the sum of all three force vectors must be zero, correct? So, this means:
F1=F1 mag times (cos 175.8i + sin 175.8 j)
F2=F2mag times (cos 3.7i + sin 3.7 j)
F3= -150j
which implies that F1+F2+F3 = 0 (make the substitutions from above and combine like terms).
Set i and j components equal to 0, separately and to solve it, it should resemble a system of equations. This means that you can use elimination or substitution to solve for F1, F2, etc. If the system is solved correctly, F1 = 1089.3 pounds and F2 = 1088.6 pounds.
Ch. 9 Review Exercises: 1, 7, 15, 19, 27, 33, 35, 41, 49, 52, 55 5, 12, 16, 20, 21, 32, 37, 43, 47, 53, 56
Note:Our next ZOOM call is scheduled for Tuesday or Thursday (see schedule below). Please chime in during your regularly scheduled class time.
April 7 (periods 5-8) or April 9 (periods 1-4), 2020 Agenda:
. Check-in with everyone
. Review last assignment and answer questions (Calculus: Chapter 4 Project; Precalculus: 9.5-9.7)
. Teach next lesson (Calculus: Introduce Integral calculus - Chapter 5; Precalculus: Equations in a Plane)
. Assign practice problems
. Discuss next steps
. Adjourn
Dear Students (and parents),
Our administration has mandated the schedule below for the week of April 6-10, 2020. Please note the change to our original meeting date/time, based on the printed schedule below. Rather than meeting with everyone on Tuesday, April 7, 2020, we will adhere to the schedule as printed below. Please use the appropriate ZOOM link for your assigned date/class time.
1. Monday, **April 6 - Institute Day (Teachers only)**
2. Tuesday, April 7 - Periods 5-8 (ZOOM at regularly scheduled class times):
Join Zoom Meeting
https://ipsd.zoom.us/j/559034758?pwd=c0x0R2p5U2Nic0JkQUdjSkdkVjY4Zz09
Meeting ID: 559 034 758
Password: 049729
Dial by your location
+1 929 436 2866 US (New York)
+1 602 753 0140 US (Phoenix)
+1 971 247 1195 US (Portland)
+1 213 338 8477 US (Los Angeles)
+1 253 215 8782 US
Meeting ID: 559 034 758
Find your local number: https://ipsd.zoom.us/u/abxkOBMxP
3. Wednesday, **April 8 - Professional Day (Teachers only)**
4. Thursday, April 9 - Periods 1-4 (ZOOM at regularly scheduled class times):
Join Zoom Meeting
https://ipsd.zoom.us/j/8446763868?pwd=Mkx4TW5BZEVaTGgzWHp6djhJSnJTdz09
Meeting ID: 844 676 3868
Password: 049729
One tap mobile
+19294362866,,8446763868# US (New York)
+12133388477,,8446763868# US (Los Angeles)
Dial by your location
+1 929 436 2866 US (New York)
+1 213 338 8477 US (Los Angeles)
+1 253 215 8782 US
+1 602 753 0140 US (Phoenix)
+1 971 247 1195 US (Portland)
Meeting ID: 844 676 3868
Find your local number: https://ipsd.zoom.us/u/abxkOBMxP
5. Friday, **April 10 - No School; No Contact**
Take care,
Natalie C. Johnson, PhD
Metea Valley High School
Math Teacher
"Failure isn't fatal, but failure to change might be." ~ John Wooden
(630) 375-5900
Live with Integrity | Inspire Passion for Learning | Foster Positive Relationships | Expect Equity and Excellence for All
April 7 (periods 5-8) or April 9 (periods 1-4), 2020 Agenda:
. Check-in with everyone
. Review last assignment and answer questions (Calculus: Chapter 4 Project; Precalculus: 9.5-9.7)
. Teach next lesson (Calculus: Introduce Integral calculus - Chapter 5; Precalculus: Equations in a Plane)
. Assign practice problems
. Discuss next steps
. Adjourn
Dear Students (and parents),
Our administration has mandated the schedule below for the week of April 6-10, 2020. Please note the change to our original meeting date/time, based on the printed schedule below. Rather than meeting with everyone on Tuesday, April 7, 2020, we will adhere to the schedule as printed below. Please use the appropriate ZOOM link for your assigned date/class time.
1. Monday, **April 6 - Institute Day (Teachers only)**
2. Tuesday, April 7 - Periods 5-8 (ZOOM at regularly scheduled class times):
Join Zoom Meeting
https://ipsd.zoom.us/j/559034758?pwd=c0x0R2p5U2Nic0JkQUdjSkdkVjY4Zz09
Meeting ID: 559 034 758
Password: 049729
Dial by your location
+1 929 436 2866 US (New York)
+1 602 753 0140 US (Phoenix)
+1 971 247 1195 US (Portland)
+1 213 338 8477 US (Los Angeles)
+1 253 215 8782 US
Meeting ID: 559 034 758
Find your local number: https://ipsd.zoom.us/u/abxkOBMxP
3. Wednesday, **April 8 - Professional Day (Teachers only)**
4. Thursday, April 9 - Periods 1-4 (ZOOM at regularly scheduled class times):
Join Zoom Meeting
https://ipsd.zoom.us/j/8446763868?pwd=Mkx4TW5BZEVaTGgzWHp6djhJSnJTdz09
Meeting ID: 844 676 3868
Password: 049729
One tap mobile
+19294362866,,8446763868# US (New York)
+12133388477,,8446763868# US (Los Angeles)
Dial by your location
+1 929 436 2866 US (New York)
+1 213 338 8477 US (Los Angeles)
+1 253 215 8782 US
+1 602 753 0140 US (Phoenix)
+1 971 247 1195 US (Portland)
Meeting ID: 844 676 3868
Find your local number: https://ipsd.zoom.us/u/abxkOBMxP
5. Friday, **April 10 - No School; No Contact**
Take care,
Natalie C. Johnson, PhD
Metea Valley High School
Math Teacher
"Failure isn't fatal, but failure to change might be." ~ John Wooden
(630) 375-5900
Live with Integrity | Inspire Passion for Learning | Foster Positive Relationships | Expect Equity and Excellence for All
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D204 Coronovirus updated information (click for information)
March 23-27, 2020 eLearning document:
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Lecture Notes:
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Extra practice: http://math.com
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