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the common tangent, AB and CD to two circles with centres O and O' intersect at E. Prove that the points O, E, O' are collinear.?

A rectangle has corners at the points with coordinates (1,2), (3,1), (5,5) and (3,6).?

A shape is rotated through 180* about the origin and then its image is reflected in the x-axis.?

Please help to evaluate this limit: lim x->infinity (x^23/2^x)?

PRE CALC HELP!!!!?

Find all of the points of the form (x, −x) which are 7 units from the origin.?

I'm unable to solve this problem I tried so many times but I didn't get the answer?

SAT math question?

Maths Homework Help?

Did I do this problem correct? Finding slope of a function at a specific x axis.?

The results of 8 matches(win,loss or draw) are to be predicted.the number of different forecasts containing exactly 6 correct result is?

if sinθ=2/sqrt5 what is tanθ equal to?

Given that a=1 and b=9 in the triangle, find sinA?

Discrete Math Proof?

Any Help??? S=1/2(wh1+wh2) Solve for w?

Point of inflection?

Find all solutions of the equation in the interval [0,2pi) cscθ+2=0 Write answer in radians in terms of pi?

physics!!! #4?

Tại vì sao dân miền Tây và dân Hà Nội lại có tính tình khác nhau đến thế ?

Determine if 9x2 - 42x + 49 can be the area of a sq. If so, what would the value of x have to be if the area of the sq is 64 sq mt? A = s2?

Use the law zines to solve the triangle if possible B=31 C =23 b=22?

h(t)=-16t^2+80t. whats the maximum height that the rocket will reach?

Let u =7i-3j and w=-i-5j. find ||w-u||?

Math Help?

Find the corresponding point on the graph of the given function.?

Write the equation of the parabola in vertex form: the vertex is (2,3)​, and a point on the parabola is (3,−2)?

Given the function, f(x)=1 over x-1 -5, choose the correct transformation.?

Explain why, without using computations, an angle measuring 180° is equivalent to one measuring π radians.?

1. θ = 6.5 radians 2. θ =3π/4 radians 3. θ = 6 radians?

Maths problems?

The coordinates of City A are (10, 12) and the coordinates of City B are (3, 4). Find the distance between the two cities.?

Use the midpoint formula to determine the midpoint of the segment with endpoints A(-2, 3) and B(3, -2).?

Decide whether lines p and q are perpendicular. p: y = 2x + 5 q: y = (1/2)x + 5?

What are some equations that equal 2.?

What are some two step equations that equal 22?

URGENT ALGEBRA HELP!?

Explain how reference angles are used to find trigonometric functions of an obtuse angle.?

Help and answer check...?

In how many ways can we select a committee of 3 boys and 2 girls form a class of 12 boys and 16 girls?

ten times more than 90 is_______? That means that : 90 x______ =______?

Let x ◦ y = (x − 2y)2 for all integers x and y. Which of the following is the value of 5 ◦ (−3)?

Given the geometric sequence an=4^n Find the first three terms and the common ratio. a1 a2 a3 r?

Find the tenth term of the geometric sequence with a2=1/2 a5=4?

Find the sixth term of the geometric sequence with a1=-2 r=3 a6=?

A bent coin is tossed 5 times. the probability of tails is 2/3/ find the probability that tails will show exactly 3 times.?

A triangular-shaped wall has a base of 2x + 4 and a height of x + 3. The area of the triangle is 56 in.2. What is the value of x?

Trig math help please!?

is this area formulae 2πr2+2πrh equal to 2xπxr2+2xπxrxh?

If log y=x, then log 3 √y=?

Complex locus question !?