• ### 9 subjects in one semester.Can you do it?I struggle and I cant function and I m very smart.?

Best answer: You have to spread your time such that all subjects are covered. Some subjects may require more time than others.
Best answer: You have to spread your time such that all subjects are covered. Some subjects may require more time than others.
1 answer · Primary & Secondary Education · 4 days ago
• ### T + 9 = 3 − R make R the subject of the formula?

Best answer: R = 3 - 9 - T R = - 6 - T
Best answer: R = 3 - 9 - T R = - 6 - T
3 answers · Mathematics · 3 days ago
• ### I struggle in engineering school.How to study more effectively?I have past papers and books.?

Best answer: A tried and tested way is to read the notes , look at the worked examples then do the exercises. It may be that text books can help as a back up to your notes.
Best answer: A tried and tested way is to read the notes , look at the worked examples then do the exercises. It may be that text books can help as a back up to your notes.
1 answer · Mathematics · 1 day ago

Best answer: f ` (x) = 3x² + 2x - 1 f ` (1) = 4 = m y - b = m ( x - a ) y - 6 = 4 ( x - 1 ) y = 4 x + 2________equation of tangent at (1,6) f ` (-2) = 12 - 5 = 7 = m1 m2 = - 1/7 y - 3 = (-1/7) (x + 2) y = (- 1/7) x - 2/7 + 21/7 y = (-1/7) x +19/7----------equation of normal at (2 , - 3)
Best answer: f ` (x) = 3x² + 2x - 1 f ` (1) = 4 = m y - b = m ( x - a ) y - 6 = 4 ( x - 1 ) y = 4 x + 2________equation of tangent at (1,6) f ` (-2) = 12 - 5 = 7 = m1 m2 = - 1/7 y - 3 = (-1/7) (x + 2) y = (- 1/7) x - 2/7 + 21/7 y = (-1/7) x +19/7----------equation of normal at (2 , - 3)
4 answers · Mathematics · 5 days ago
• ### Express 2sin^2𝜃+3cos𝜃 in terms of cos𝜃?

Best answer: 2 sin²∅ + 3 cos ∅ 2 ( 1 - cos²∅ ) + 3 cos ∅ 2 + 3 cos ∅ - 2 cos²∅
Best answer: 2 sin²∅ + 3 cos ∅ 2 ( 1 - cos²∅ ) + 3 cos ∅ 2 + 3 cos ∅ - 2 cos²∅
2 answers · Mathematics · 1 week ago
• ### HELP ME! SIMPLIFYING POLYNOMIAL EXPRESSIONS!!!?

Best answer: 49 x² + 28x + 4 - [5x] [ - 3x - 9 ] 49 x² + 28x + 4 + 15x² + 45x 64 x² + 73 x + 4
Best answer: 49 x² + 28x + 4 - [5x] [ - 3x - 9 ] 49 x² + 28x + 4 + 15x² + 45x 64 x² + 73 x + 4
4 answers · Mathematics · 1 year ago
• ### Maximum value of sin¢+cos¢?

Best answer: Let cos x + sin x = k cos ( x - a ) cos x + sin x = k cos a ( cos x ) + k sin a ( sin x ) 1 = k cos a 1 = k sin a 1² + 1² = k² k = √2 tan a = 1____________a lies in first quadrant a = π/4 cos x + sin x = √2 cos ( x - π/4 ) Max value is √2
Best answer: Let cos x + sin x = k cos ( x - a ) cos x + sin x = k cos a ( cos x ) + k sin a ( sin x ) 1 = k cos a 1 = k sin a 1² + 1² = k² k = √2 tan a = 1____________a lies in first quadrant a = π/4 cos x + sin x = √2 cos ( x - π/4 ) Max value is √2
7 answers · Mathematics · 3 weeks ago
• ### Find the values of all six trigonometric functions if sin(theata)=1/rad2 and (theata) € Q1?

Best answer: sin ∅ = 1 / √2________csc ∅ = √2 cos ∅ = 1 / √2_______sec ∅ = √2 tan ∅ = 1____________cot ∅ = 1
Best answer: sin ∅ = 1 / √2________csc ∅ = √2 cos ∅ = 1 / √2_______sec ∅ = √2 tan ∅ = 1____________cot ∅ = 1
2 answers · Mathematics · 1 month ago
• ### How is the sine of a triangle found?

Best answer: By definition , in a right angled triangle :- sin ∅ = opposite / hypotenuse
Best answer: By definition , in a right angled triangle :- sin ∅ = opposite / hypotenuse
4 answers · Mathematics · 1 month ago
• ### Math Question – Write in Standard Form, f(x-1) = 3(x-1)^2 + 11 then find the Vertex?

Best answer: f (x) = 3x² + 11 f ' (x) = 6x = 0 for turning point x = 0 Turning point is (0, 14)________vertex
Best answer: f (x) = 3x² + 11 f ' (x) = 6x = 0 for turning point x = 0 Turning point is (0, 14)________vertex
2 answers · Mathematics · 1 month ago
• ### A Jet is traveling 527 MPH miles per hour how long would it take to get to its destination 2,445 miles away?

Best answer: time = 2445 / 527 hours time = 4 . 64 hours = 4 h 38 min
Best answer: time = 2445 / 527 hours time = 4 . 64 hours = 4 h 38 min
3 answers · Mathematics · 1 month ago
• ### Make x the subject of √a/x+b = c?

Best answer: Assuming that is meant to be :- √ [ a / (x + b) = c a / (x + b) = c² a/c² = x + b x = a/c² - b
Best answer: Assuming that is meant to be :- √ [ a / (x + b) = c a / (x + b) = c² a/c² = x + b x = a/c² - b
7 answers · Mathematics · 2 months ago
• ### I need explaining for 5x+6-x?

Best answer: 5x - x + 6 = 4x + 6
Best answer: 5x - x + 6 = 4x + 6
3 answers · Mathematics · 2 months ago
• ### Height of mountain?

Best answer: Draw a diagram Let height of mountain be y ft Let distance from closer point to base of mountain be z ft tan 32° = y / ( 1000 + z ) ( 1000 + z ) tan 32° = y and z tan 36° = y 1000 tan 32° + z tan 32 ° = z tan 36° 1000 tan 32° = z ( tan 36° - tan 32° ) 624.9 = 0.102 z z = 624.9 / 0.102 = 6126.5 ft tan 36° = y / 6126•5 y = ... show more
Best answer: Draw a diagram Let height of mountain be y ft Let distance from closer point to base of mountain be z ft tan 32° = y / ( 1000 + z ) ( 1000 + z ) tan 32° = y and z tan 36° = y 1000 tan 32° + z tan 32 ° = z tan 36° 1000 tan 32° = z ( tan 36° - tan 32° ) 624.9 = 0.102 z z = 624.9 / 0.102 = 6126.5 ft tan 36° = y / 6126•5 y = 6126•5 tan 36° y = 4451 ft________mountain height
2 answers · Mathematics · 2 months ago
• ### Algebra question?

Best answer: Let width of path be x meters Outside area [ 10 + 2x ] [ 8 + 2x ] = 120 80 + 36x + 4x² = 120 x² + 9x - 10 = 0 [ x + 10 ] [ x - 1 ] = 0 x = 1 Width of path = 1 meter
Best answer: Let width of path be x meters Outside area [ 10 + 2x ] [ 8 + 2x ] = 120 80 + 36x + 4x² = 120 x² + 9x - 10 = 0 [ x + 10 ] [ x - 1 ] = 0 x = 1 Width of path = 1 meter
3 answers · Mathematics · 2 months ago
• ### How do you work out this maths problem? A team won 1/5 of their matches and drew 1/10 of them. What fraction of matches did they lose?

Best answer: 1/5 + 1/10 = 3/10 Lost 7/10
Best answer: 1/5 + 1/10 = 3/10 Lost 7/10
10 answers · Mathematics · 2 months ago
• ### Derivative of (2.5x)/(x^2 +1)=?

Best answer: f ` (x) is given by :- [x² + 1] [ 2•5 ] - [ 2•5x] [2x] --------------------------------------- [ x² + 1 ] ² 2•5 + 2•5 x² - 4•5 x² -------------------------------- [ x² + 1 ] ² 2•5 - 2 x² ---------------- [ x² + 1 ] ²
Best answer: f ` (x) is given by :- [x² + 1] [ 2•5 ] - [ 2•5x] [2x] --------------------------------------- [ x² + 1 ] ² 2•5 + 2•5 x² - 4•5 x² -------------------------------- [ x² + 1 ] ² 2•5 - 2 x² ---------------- [ x² + 1 ] ²
3 answers · Mathematics · 2 months ago
• ### What are the coordinates of the point on the directed line segment from(- 3,2) to (6, 6) that partitions the segment into a ratio of 1 to 3?

Best answer: r = a + (1/4) (b - a) r = (3/4) a + (1/4) b r = (3/4) ( - 3 i + 2 j ) + (1/4) ( 6i + 6j ) r = (-3/4) i + 3 j point (-3/4 , 3)
Best answer: r = a + (1/4) (b - a) r = (3/4) a + (1/4) b r = (3/4) ( - 3 i + 2 j ) + (1/4) ( 6i + 6j ) r = (-3/4) i + 3 j point (-3/4 , 3)
3 answers · Mathematics · 2 months ago
• ### What is the value of a such that (−2, 1) and (0, a) lie on a line parallel to the line passing through points (5, 7) and (7, 4)?

Best answer: gradient 1 , m1 = ( a - 1 ) / 2 gradient 2 , m2 = - 3 / 2 a - 1 = - 3 a = - 2
Best answer: gradient 1 , m1 = ( a - 1 ) / 2 gradient 2 , m2 = - 3 / 2 a - 1 = - 3 a = - 2
4 answers · Mathematics · 2 months ago
• ### Math Problem (Linear Equation) help!!?

Best answer: Andy has a speed of x/4 mph Betsy has a speed of 2x/7 mph Relative speed = 8x/28 + 7x/28 = 15 x/28 mph Time = distance / speed = x / 15x/28 = 28/15 mph Time = 1 . 87 hours = 1 hour 52 min
Best answer: Andy has a speed of x/4 mph Betsy has a speed of 2x/7 mph Relative speed = 8x/28 + 7x/28 = 15 x/28 mph Time = distance / speed = x / 15x/28 = 28/15 mph Time = 1 . 87 hours = 1 hour 52 min
3 answers · Mathematics · 2 months ago