20,417 Answered Questions for the topic Algebra

Algebra Math Mathematics

08/17/21

Expand (5+3√2)^2. Give your answer in the form (a+b√c), where a and b are integers. Show your working clearly.
Expand (5+3√2)^2. Give your answer in the form (a+b√c), where a and b are integers. Show your working clearly. I need help, please.
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08/17/21

PLZ HELP ME IT'S PRE-CAL THANKS IN ADVANCE
State whether the following solution sets are from a function or non-function y=x2 y2=4-x2 y=x3 y=±√1-2x
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Algebra Math Mathematics

08/17/21

Given that c is a prime number, rationalise the denominator of 3c-√c / √c. Simplify the answer.
Given that c is a prime number, rationalise the denominator of 3c-√c / √c. Simplify the answer.
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Algebra Math Mathematics

08/17/21

Make x the subject of y = √2x+1/x-1
Make x the subject of y = √2x+1/x-1
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08/16/21

write the equation of the hyperbola whose foci are (−5,2) and (3,2), and which has a vertex at (0,2).
write the equation of the hyperbola whose foci are (−5,2) and (3,2), and which has a vertex at (0,2).
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08/16/21

Find the equation of an ellipse whose foci are (0,±6) and whose semi-minor axis is 5
Find the equation of an ellipse whose foci are (0,±6) and whose semi-minor axis is 5
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Algebra

08/16/21

result, for Lucy, Miguel and Sam
Lucy, Sam and Miguel have $122 total in their wallets. Sam has fourth times what miguel has. Miguel has $8 less than Lucy. How much do they have in their wallets
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Algebra

08/16/21

Solve the system of equations by addition. −x+2y =−1 , 5x−10y =6
Solve the system of equations by addition. −x+2y =−1 , 5x−10y =6
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Algebra Math Mathematics

08/15/21

Given that p is a prime number, rationalise the denominator of 7√p - p^2 / √p^3. Simplify the answer
Given that p is a prime number, rationalise the denominator of 7√p - p^2 / √p^3. Simplify the answer
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08/15/21

Find a vectors perpendicular and parallel to the plane.
(a) Find a vector n-> perpendicular to the plane z=7x+8y. n-> =(b) Find a vector v-> parallel to the plane. v->=
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08/15/21

find the following cross products.
If a=⟨1,2,1⟩ and b=⟨5,11,1⟩, find the following cross products.1. a×b= 2. b×a=
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Algebra Math Mathematics

08/15/21

How do I solve 4/e-3=5
Please help. How do I solve 4/e-3=5
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Algebra Math Mathematics

08/14/21

Simplify (2x+3)^2 - (2x +3)(x-5). Give your answer in the form ax^2 +bx +c
Simplify (2x+3)^2 - (2x +3)(x-5). Give your answer in the form ax^2 +bx +c. How do I do this?
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Algebra

08/14/21

Find two consecutive integers so that 18 times the smaller number is 2 more than 17 times the larger number
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Algebra Math Mathematics

08/14/21

How to simplify fully (2x+3)^2-(2x-3)^2?
simplify fully (2x+3)^2-(2x-3)^2
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Algebra Math

08/13/21

What do I do to rearrange the formula y=a-bx^2 to make x the subject?
Rearrange the formula y=a-bx^2 to make x the subject
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08/13/21

Find the point at which the line
Find the point at which the line ⟨1,−2,1⟩ + t⟨−1,5,1⟩ intersects the plane −x−4y−z=−74.( , , )
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08/13/21

Vectors and the Geometry of Space
Find an equation of the plane consisting of all points that are equidistant from (3, -3, 5) and (3, 0, 1).
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08/13/21

Find an equation of the plane parallel to the plane
Find an equation of the plane parallel to the plane 9x−8y−9z=−6which passes through the point (-4, 2, -9).Give your answer in the form ax+by+cz=d (with a=9).a =b =c =d =
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08/13/21

need help with precalculus (check my answer)

f(x) =  ; g(x) = 8x - 13Find f(g(x)).f(x) =  ; g(x) = 8x - 11Find f(g(x)).f(x) = 5x + 3; g(x) = 6x - 5Find f/gmy answer : (f/g)(x) =  domain {x|x ≠ }
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08/13/21

need help with precalculus
Determine the intervals on which the function is increasing, decreasing, and constant. is it Increasing x > 0; Decreasing x < 0 ??Use the graph of f to estimate the local maximum and local... more
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Algebra

08/12/21

I need help solving this equation
The longer leg of a right triangle is 1 meter longer than the shorter leg. The hypotenuse is 1 meter shorter than twice the short leg. Find the lengths of the sides of the triangle.
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Algebra

08/10/21

A(2x+3) = 9x + 15 + x
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08/10/21

Pattern Practice, College Mathematics
X, 2X + 11 and 4X - 3 are consecutive terms of an arithmetic sequence. Find the constant difference between terms. Give a formula for finding the nth term of the sequence. Use your formula to find... more
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08/10/21

Describe the graph of the parametric curve

Describe the graph of the parametric curve x= tan (t) y=tan^2(t)by first eliminating the parameter.
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