Application of linear eqautions, word problem - An art dealer sold two artworks at $1520 thereby making a profit of 25% on the first work and 10% on the second, where as if he had approached any exhibition he would have sold them together for $1535 with a profit of 10% on the first and 25% on the second. Find the actual cost of each artwork.
I am not quit sure where to start with problem. I don...
Applications of Linear Equations : Word Problem - A professor started a project with a group of students, 60% of whom were boys. Due to some unavoidable reason, six girls couldn't turn up, so the professor had to make some changes in the group. He admitted six boys. In doing so, the percentage of boys in the project increased to 75%. Find the number of boys and girls involved in the project initia...
Quadratic Equations and Applications (Four Problems) - Assignment 5: Solutions of Quadratic Equations and their Applications
1.
a) x2 + 6x + 7 = 0
b) z2 + z + 1=0
c) (3) ½ Y2 4y-7 (3) ½ = 0
d) 2x2 - 10x + 25 = 0
e) 2x2 +6x + 5 = 0
f) s2 - 4s + 4 = 0
g) 5/6x2 - 7x - 6/5 = 0
h) 7a2 +8a + 2 = 0
2. Given x = 1 and x = -8, form a quadratic equation.
3. What type of solution do...
Algebra Word Problems - A designer attempts to arrange the characters of his artwork in the form of a square grid with equal numbers of rows and columns, but finds that 24 characters are left out. When he tries to add one more row and column, he finds that he has 25 too few characters. Find the number of characters used by the designer.
Exponential and Logarithmic Function Graphs - Referring to the graph below (which is attached), identify the graph that represents the corresponding function. I need to justify my answer.
y = 2^x
y = log2x (where the 2 is lower case below log, not above)then; x
Also, I need to plot the graphs of the following functions and show them.
f(x)=6^x
f(x)=3^x - 2
f(x)=(1/2)^x
f(x)= log2x (w...