Mathematics

How to factorise the following quadratics? yr 9

a)9b² + 48b + 64 b)(ac)² - d² c)a² + ab - 182 b² d)b² - 2abc + a²c² pls i am so clueless. so pls show all working. thanks so much-a) 9b² + 48b + 64 = 9b² + 24b + 24b + 64 = 3b(3b + 8) + 8(3b + 8) = 3

If a player runs at 36.0 km/hr, how many seconds does it take to run from the 50.0 yard line to the 20.0

1 yds = 0.0009144 kilometers 30(0.0009144 kilometers/yd)=.027432 km .027432 km(3600sec/36 km)=2.7432 sec

Evaluate 27 ^1/3 ??????

27 ^ 1/3 is the same as the third root of 27. The answer will be 3 because 3^3 equals 27.-Thats the same thing at the cube root of 27. Which is 3.

How does one perform binomial factorization

Unbeknownst to me is the process of binomial factorization. I have repeatedly attempted to derive the method for doing so via practice problems, but to my dismay, I have not prevailed. If there be a g

Solve each equation.

1.4y - 6 = 2y + 8 2.3(2z +1) = 35 3.5(3w-2) - 7 = 23 4.t - 2 (3-2t)= 2 t 9 5.5(s-12) - 24 = 3 (s + 2)-1. 4y - 6 = 2y + 82y=14y=7 2. 3(2z +1) = 356z+3=356z=32z=16/3 3. 5(3w-2) - 7 = 2315w-10-7=2315w-17

How do I simplify this into a single logarithm

The problem is 1/3ln (x+2)^3 + ½[ln x – ln(x^2 + 3x + 2)^2] The correct answer should be ln(√x) / x+1 What are the steps in between?-1/3ln (x+2)^3 + ½[ln x – ln(x^2 + 3x + 2)^2] = 1/3ln (x+2)^3 + ½l

How do I find or derive the value of sin 18

If you want just the value then you can use scientific calculator, but if you want to find it then you have use the formula for sin 5x :), where x=18. You can see the derivation of sin 5x in terms of

It's me or integrating sin^6(x) takes forever

i am at a point where i have to do 10 trigonometric substitutions. wtf, are they expecting me to do? are they ******* insane?-are they ******* insane? Probably. Stupid is more like it. It is a sign

Help with algebra 2 word problems

1. a moving company weighs 20 boxes you have packed that contain either books or clothes and says the total weight is 404 pounds. you know that a box of books weighs 40 pounds and a box of clothes wei

How can y be a number? See question

Describe the set of all form (2,y) where y is a real number-Well if you are looking for the graph that would satisfy (2,y) that would mean all x values are 2 and the y values vary. So you just have th

How to find the difference between two points

For example: A(3, 12), B(-5, -1) Also, please explain how you got the answerfor the example! Thanks! :)-Use the formula (y1-y2)/divided by (x1-x2) so this means you would do (12--1) / (3--5) which

Arithmetic progression

Please help me to solve this problem. In arithmetic sequence, the sum of the first twelve terms is 156 and the 4th term is 8. Find a) the first term and the common difference, b) the tenth term Th

Help me simplify the expression

Id appreciate the steps on how to do this rather than the answer just so I can understand how to get it. 12y-8 ---------- -4 I made it to 12y - 8 x -1/4 but Im unsure what to do afterwards.-Is this

How many roots does a quadratic equation has ? And what are they

Always quadratic equation will have 2 roots. And it depends on the equation if those roots are equal, real or complex.-two rootsforbecause two negatives make a positive and two positives make a positi

How do i find the x and y intercept 4x-6y=72

Intercepts are when the opposite variable is equal to 0. i.e... x-intercept is when y=0 and y-int is x=0 So in your case it would be: X-int: 4x-6(0)=72 4x=72 x=72/4x=18 y-int: 4(0)-6y=72-6y=72y=72/-6