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In the isosceles triangle ABC, AB=AC and angle B=(3x +32)degrees and angle C=(87-2X)degrees

First of all i would get the student to draw a diagram with the labelled sides and angles. Then i would test their knowledge of shapes and angles by asking them what the angles in a triangle add up to. On...

Answered by Catherine B. • Maths tutor

11027 Views

In an office there are twice as many females as males. 1/4 of females wear glasses. 3/8 of males wear glasses. 84 people in the office wear glasses. What is the total number of people in the office?

Let's figure out what information we have and let's translate it into mathematical terms.
Let f = number of females in the office m

Answered by Thomas G. • Maths tutor

7919 Views

Find the roots for the quadratic equation x^(2)+6x+5=0
For this question I would consider different methods for finding the roots of quadratics and remind the student that an exam could ask for a particular method to be used (as on one of the recent GCSE math...
HL
Answered by Harry L. • Maths tutor
4625 Views

Find the differential of y(x)=(5x*Cos(3x))^2
Firstly I would state the substitution rule, letting 5xCos(3x)=w(x), and differentiating with respect to w(x). This gives y'(x)=2w'(x)(w(x)).I would then demonstrate the product rule stating ...
HL
Answered by Harry L. • Maths tutor
3265 Views

If x is a real number, what are the solutions to the quadratic: 4*x^2- 4*x+1 = 0
You first calculate the delta of the equation: delta = b^2-4ac = 16 - 16 = 0 => the solution is double.x1,2 = (-b±sqrt(delta))/2/a = 4/2/4 = 1/2 which is real.so the solutions are 1/2 and 1/2....
MI
Answered by Maria I. • Maths tutor
2914 Views

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In the isosceles triangle ABC, AB=AC and angle B=(3x +32)degrees and angle C=(87-2X)degrees

In an office there are twice as many females as males. 1/4 of females wear glasses. 3/8 of males wear glasses. 84 people in the office wear glasses. What is the total number of people in the office?

Find the roots for the quadratic equation x^(2)+6x+5=0

Find the differential of y(x)=(5x*Cos(3x))^2

If x is a real number, what are the solutions to the quadratic: 4x^2- 4x+1 = 0

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