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Determine the domain function fx 8x-4x squared-5x-36?
f(x) = 8x - 4x2 - 5x - 36 = -4x2 + 3x - 36 The domain for f(x) can be the whole of the Complex field or any subset.
What is the volume of a cuboid when its height is in the ratio of 15 to 8 to its width and has a length of 22 cm with a surface area of 2506 square cm showing work?
Suppose the height is 15x cm. Then the width is 8x cm. Then the surface area is 2*(15x*8x + 8x*22 + 22*15x) cm2 Therefore 2*(15x*8x + 8x*22 + 22*15x) = 2506 or 15x*8x + 8x*22 + 22*15x = 1253 120x2 + 506x - 1253 = 0 so that x = -529/30 or 13/4 But x cannot be negative so x = 1.75. Therefore, volume = (15*1.75)*(8*1.75)*22 = 8085 cm3
What is the value of x id the acute angle of a right triangle measure 8x and 12x?
It is: x = 4.5 and so the acute angles are 36 degrees and 54 degrees
What is the vertex of the graph y-2x2 8x-3?
y=-2x^2+8x+3
How do you find the values of k when the straight line y equals kx -2 is a tangent to the curve y equals x squared -8x plus 7?
By implication : x2-8x+7 = kx-2 Form a quadratic equation: x2-8x-kx+9 = 0 For a line to be a tangent to the curve it must have two equal roots and the discriminant b2-4ac of the quadratic equation must equal 0. So: (-8-k)2-4*1*9 = 0 (-8-k)2-36 = 0 (-8-k)2 = 36 Square root both sides: -8-k = -/+6 -k = 2 or 14 k = -2 or -14 When k = -2 is substituted into the quadratic equation x will have two equal roots of 3 When k = -14 is substituted into the quadratic equation x will have two equal roots of -3
A triangle has an area of 36 square feet a base of 8x feet and a height of 4 feet what is the value of x?
Area_triangle = base x height x 1/2 ⇒ 36 = (8x) x 4 x 1/2 ⇒ 8x = 18 ⇒ x = 21/4 (= 2.25)
What is 8x-36 equal?
8x-36 equal = -28
What is the square root of 8x?
square root of 8x = 2.82842712
What is X if -8x plus 4 equals 36?
If: -8x+4 = 36 then the value of x works out as -4 Check: -8*(-4)+4 = 36
What is the square root of 10X multiplied by the square root of 8X?
√(10x) * √(8x) = √(80x²)√(80x²) = √(16x²) * √(5) = 4x*√(5)■
What is the greatest common factor of 8x and 12xx square?
The GCF of 8x and 12x2 is 4x.
The length of a rectangle is 8 feet longer than its width which has the same dimension as the side of a square If the area of the rectangle is equal to 160 square feet more than the area of the squa?
length = 56 with = 48Improved Answer:Presumably your question is about finding the dimensions of a rectangle?If so then let the length be (x+8) the width be x and the square be x2:(x+8)*x = x2+160 square feetx2+8x = x2+160x2-x2+8x = 1608x = 160x = 20Therefore: length = 28 feet and width = 20 feetCheck: 28*20 = 400+160 = 560 square feet
What is the greatest common factor of 8x and 36?
The GCF is 4.
Determine the domain function fx 8x-4x squared-5x-36?
f(x) = 8x - 4x2 - 5x - 36 = -4x2 + 3x - 36 The domain for f(x) can be the whole of the Complex field or any subset.
How do you figure out 5x plus 49 equals 8x plus 13?
5x+49 = 8x+13 49-13 = 8x-5x 36 = 3x x = 12
What is the solution to 5x-4 plus 3x equals 36?
5x - 4 + 3x = 36 Simplify: 8x - 4 = 36 Add 4 to both sides: 8x = 40 Divide both sides by 8: x = 5
What are the solutions to the equation below (4x plus 36)(8x-40)0?
Assuming you mean:(4x+36)(8x-40) = 0 then you can use the property that a product can only be zero if one of its factors is zero. In other words, you can change this to: 4x + 36 = 0 OR 8x - 40 = 0 Solve each of the individual solutions; their solutions are also solutions to the original equation.
