7,188 Answered Questions for the topic Math Help

Math Help

08/14/18

If TU = 8, UV = 8x, and TV = 10x, what is TV?
i need help with my math hw please
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Math Help

08/13/18

Half the sum of x and y, decreased by one-third y
Half the sum of x and y, decreased by one-third y  
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08/13/18

Algebra help
The length of a rectangle is 1 foot longer than twice the width. The area of the rectangle is 15 sq. feet. Find the length and width of the rectangle.
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Math Help

08/12/18

what is the number whose distance is 5 to the left of 12
The question is asking based on the number line
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Math Help

08/12/18

The expression (x+a)(x+b) can not be written as...
a) a(x+b) + x(x+b) b) x2 + (a+b)x + ab c) x2 + abx + ab d) x(x+a) + b (x+a)
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Math Help

08/12/18

How many solutions does −3x=−x−2x have?
i wanna know how many solutions does the problem have.
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Math Help

08/11/18

Digital Root always = 9, but why?
n = number of choice n * 111 = x x * x = y The digital root of y = 9 Why is this?
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Math Help Sat

08/09/18

(15-4i)(6-3i) = a +bi In the equation above, a and b are real numbers and i = square root of -1. What is the value of a?
Math practice problem Advanced Math
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08/08/18

math problem
Find the time it takes for $6,600 to double when invested at an annual interest rate of 19%, compounded continuously.   _______ years?     Find the time it takes for $660,000 to double when... more
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Math Help Math Differentiation

08/08/18

Differentiation - are these answers correct?
Could someone help me check if I differentiated these these two functions correctly:   f(x)= √(3x2-x3)   And   h(x) = 3√(5x+x2)2     I got: f′(x) = 6x-3x2/2·√(3x2-x3)   And   h′(x) =... more
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Math Help Math Algebra 2 Equation

08/07/18

What is the equation of a line perpendicular to 4x-7y=23 through (2/3, -4/5) in point-slope form?
I’ve been stuck on this problem for a while. The directions are: find the equation of the line that has the given characteristic. Leave your answer in the form indicated.
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Math Help

08/07/18

Ordered pair solution
Which of the following ordered pairs is a solution of y=-4/3x+5
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Math Help Geometry

08/07/18

How do you combine 4 four times using +, -, x, division, and parenthesis to get 1, 2, 5, and 7?
I need help combining 4 four times using different operations and parenthesis to get four different numbers and I'm struggling. I already have 3, 4, and 6
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08/07/18

What is the roots of quadratic function?
What means by 'Let α and β be the roots of quadratic function ax2 +bx+c=0' And talk about the sum of roots and product of roots...I don't even know how α and β pop out,isn't the roots means the... more
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Math Help

08/07/18

ORDERED PAIRS
Find the ordered-pair solution of y = 7/8 X-2 corresponding to x = 8
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Math Help

08/07/18

the sum of digits of two-digit number is 15. interchanging the digits of this number increases it by 9. find the number
translate this world problems to a system of equations
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08/06/18

The length of time to set up is 200 min. The time to make paint each sign is 25 min. Write an equation for this statement, then create a table of values and gra
SHOW WORK PLEASE AND THANK YOU SO MUCH!!!
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Math Help Math Maths Ratios

08/06/18

Finding Ratio of two Sphere.
Volume of Two Spheres are in the ratio 27:343 and the sum of their radius is 10. Find the ratio of the surface area of the bigger sphere to the smaller sphere.
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Math Help Word Problem

08/06/18

the length of a rectangular box is 2 times its width, and its heigth is 3 ft more than its width. the volume of the box is 48 ft^3 . find the width of the box
 round your answer to two decimals
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Math Help

08/05/18

use the zeros to factor f over the real numbers. f(x)=xque + 3xsquare -4x -12
trying to solve this problem.     use the rational zeros theorem to find all the real zeros of the polynomial function.  use the zeros to factor f over the real numbers      f(x) = xque +... more
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Math Help Math Geometry

08/05/18

What are the x- and y-intercepts of the line tangent to the circle (x – 2)2 + (y – 2)2 = 25 at the point (5, 6)?
I really need this quickly. Thank you.
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Math Help

08/04/18

Trigonometry
AB is a hill. Points D and C are in line with the base B of the hill. From D, the angle of elevation of the top of the hill is 24º and from C, 40 metres closer to the hill, the elevation is 52º.... more
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Math Help

08/04/18

Solving Equation
The equation 4x2 +kx+9=0 has exactly one root. For the value(s) of k, find the root or roots.
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Math Help

08/04/18

When a number is increased by 5% and the result decreased by 9%, the answer is 11466. Find the number.
This was a question from a book, the answer is 12000, but I want to see the working out for it.     Thank you.
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Math Help

08/03/18

8 divided by 6,425
What is the answer 
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