Mathematics

Triangle ABC is an isosceles right angled at B and side BC is produced to D find angleACB

since its an isoceles triangle,so ab=bc n angle A = angle C. so applying the property of triangle, angleA+angleB+angleC =180. angleA+90+angleC=180. 2 of angleC+90=180 2of angleC=90 angle C=90/2 angle

Help solve and explain

Solve the system: x^2 + y^2 = 23, x+y = 1-x + y = 1 x² + 2xy + y² = 1 23 + 2xy = 1 xy = -11 y = 1 - x x(1-x) = -11 x - x² = -11 x² - x = 11 (x - 1/2)² = 45/4 x - 1/2 = ±(45) / 2 x = 1/2 ± 3√(5) /

Use implicit differentiation to find the slope of the tangent line to the curve (y/x+6)=x^9-7) pt. (1,-6/37)

Ive tried to solve for the derivative of (y/x+6y) using quotient and chain rule but cant seem to get past that step, and when I try to find M (slope of tangent line) at the point (1,-6/37) I cannot fi

Help on these Two Ellipse Problems Please

Find the equation in standard form of the ellipse with foci (0, 5) and (0, -5) and major axis of length 14. a) (x²/24)+(y²/49)=1 = 1 b) (x²/49)+(y²/24)=1 = 1 c) (x²/4)+(y²/49)=1 = 1 d) (x²/49)+(y²/4)=

Pre-Calculus math help!

I have a 100pt. math quiz tomorrow on things that I am not really sure how to do.If anyone could please help me out it would be great.And if you guys could, could you please explain how to do the prob

How do you simplify this

can someone please give me a step by step instruction on how to simplify(3(x^2)^2(y^4) / 3(y^2) i keep getting 3x^4y^2 as my answer but in my book it says3x^4y^6-(3(x^2)^2(y^4) / 3(y^2) 3x^4y^2 mig

How can i solve this absolute value equation? -6=Ia-3I-14

help??--6=Ia-3I-14 8 = |a - 3| a - 3 = 8 or a - 3 = -8 a = 11 or a = -5

My teacher asked me this question, and now im stumped on it

y = 2x + 2 y = 1/2x + 2 If I were to solve this system of equation through subsitution, how would the setup look like. But im not sure if it is able to be solved with subsitution, Because the first

Solve these algebra 1 problems? 10 pts.

Find three consecutive numbers whose sum is 90. The perimeter of a rectangle is 420 inches. The width is 4 inches less than the length. What is the length of the rectangle? (check) Find a number w

How do you convert this decimal to a fraction

Okay I want to convert 1.2/0.12 = ____ I know the decimals are fractions, but I want to convert them to a REGUALAR fraction-multiply top and bottom by 10 =12/1.2 then do the same again =120/12 the

Geometry Question! 5 Points!

If an angle is bisected and then 30 degrees is added to the measure of the bisected angle, the result is the measure of a right angle. What is the measure of the original angle? 30 Degrees 60 Degrees

What do you like most ? Mathematics / history / poem

Mathematics-I never knew poem was a school subject.

Interval notation question

how would you write the interval notation of: x is positive?-(0, +infinity) I would think.

How would i graph this? help please :)

f(x)=2x+1, x greater than or equal to -1x^2+3, x greater than -1-f(x) = 2x + 1 The y-intercept is 1, so (0, 1) is a point on the line. f(-1) = -1, so (-1, -1) is another point on the line. Draw a line

Math question wanna help

please go step by step and treat me like a 7 year old so i understand it. y^2=x^3-4xtest for symmetry with respect to each axis and to the origin??-y^2=x^3-4x To test for symmetry on the x-axis, repla