whatdoiputhere

Using Quadratic formula, use a, b and c to slove for x. By doing this I got x=(7i+i)/2

Tell me if i'm wrong :)

That's a good stragety too, if you have any other questions i'll be happy to help, just post it on the forum :)

Any polygon with interior angles that add up to 540 must have 5 sides and 5 corners (a pentagon). Assuming it is a regular pentagon, you need to work out what 1/5 of 540 is, which is the same as dividing it by 5. 540/5 = 108. This is the number of degrees in one interior angle of a regular pentagon.

Lol thank you. The easiest way is to read the passage thoroughly since the answe is always in the passage! And make sure to rule out answers which aren't even close to being an answer, in this case I rules out A and C which left me to only think about B and D which made it easier to find the answer.

Hello guest!

This problem is pretty simple. Since we cannot divide this we can change the division sign into a multiplication, but to do this we need to also take the reciprocal of 2/3, which means we flip th number so it becomes 3/2. Now we can simply multiply. (1/4)*(3/2) which should give you 3/8

Haha thanks :)

(y*0.2+x*0.05)/10=0.11
x+y=10
Where x cc of 5% solution, y cc of 20% solution.
Transform the rational equation to 20y+5x=10*11, divide by 5,
4y+x=22

Now you have the system
x+4y=22
x+y=10

Subtract second equation from first equation and obtain 3y=12, then y=4.
Because y=4 x has to equal 6.

I'm pretty sure C is the answer since in the passage it says "Slavery soon proved its ability to divest her of these heavenly qualities. Under its influence, the tender heart became stone.." Which shows after slavery her attidude chanhes from being nice and giving to cold and cruel.

For A i got 7 by doing sqrt 48 but B im a bit confused. I did sqrt(a^2-c^2)=sqrt(7^2-5^2)=sqrt24=2sqrt6. So would the value of be just 2sqrt6 or do I need to do some other step?

Oh I didn't think about using the conjugate. Thanks!

So for n I got 111 and -112 so would the answer be 111 since its the positive value?

Let multiplicative factor be x Then amount of walnuts to buy = 1(x), or x Amount of almonds to buy = 2(x), or 2x Amount of raisins to buy = 3(x), or 3x Cost of x lbs of walnuts: 12x Cost of 2x lbs of almonds: 2x(9), or 18x Cost of 3x lbs of raisins: 3x(5), or 15x We then have: 12x + 18x + 15x = 15 45x = 15 x, or multiplicative factor 15/45 , or 1/3 Amount of walnuts to be purchased: x, or lb Amount of almonds to be purchased: 2x, or 2/3  lb Amount of raisins to be purchased: 3x, or , or 1 lb Amount of trail mix that can be made with $15 2 or lbs

I can confirm that it is correct!