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# Logarithms

If 2 logax= 1+loga(7x-10a), find x in terms of a.       Ans: 2a, 5a

# Determine which of the following expressions displays a linear realtionship.use multiple representations to explain your reasoning?

a. square root of x b.1/2 c. 3 + 0.5x x + 7

# Losing Weight Challenge

1. Reuben was successful in losing weight. He had a goal weight in mind. He went on a diet for three months. Each month, he would lose one-third of the difference between his current weight and his...

# 2x^2-20x+49=0

solve by completing the square

# Trigonometry

Solve for 0°<x<180° for the following equation, 8 cosec 2x cot 2x=3

# Solve the equation (logarithms)

(i) Solve the equation log2(x3+1) - 2 log2x = log2(x2-x+1) -2 (ii) Hence solve the equation log2(x3+1) - log2x2 =log2(x2-x+1)-2     Ans: (i) 2+2√2       ...

# Logarithms

Evaluate the following. lg 1/2 + lg2/3 + lg 3/4 +...+lg 998/999 + lg 999/1000.

# write the whole number as an equivalent

write the whole number as an equivalent fraction with the give denominator 6=/49

# Find the value of ALL the other five trigonometric functions, given tanx= 4/11, secx<0.

Thanks for the help! If you could please show all your work? Thanks again!

2x^2+49=-20x

# if 3 tacos and 2 burriots cost \$7.40 and 4 tacos and 1 burrito cost \$6.45. Then write a system of equations for the cost of a single taco and a single burrito

Define the variables, explain the solution.

# I get 0.15 liters of chemicals i need to use 0.4 of this liquid for a project How much yellow liquid will i use?

this is a question  my brother asked me

# Find the general solution?

Find the general solution of u"+2u'+u=25 sin(t). r^2+2r+1=(r+1)^2 r=-1 u=A sin(t)+B cos(t) 25 sin(t)= -A sin(t)-B cos(t)+2(A cos(t)-B sin(t))+A...

# write in answer form a+bi

simplify write answer in form a+bi, where a and b are real numbers

3[2+6(4-3)]

# Hard math question with a lot of converting

If one pound equals two cups of water and you have 225 gallons to displace 5.5 56 by 16 by 30 inch box but need something that weighs 23 to 37lb per square feet to be bigger than 56 by 16 by 30 and...

# A long probability question

So, my boyfriend ordered cigarettes from across the border and was told there would be a 6% chance it would be rejected at the border.  Unfortunately for his addiction, it was indeed rejected...

# Find the savings plan balance after 15 months with an APR of 11% and monthly payments of \$250

Find the savings plan balance after 15 months with an APR of 11% and monthly payments of \$250.