Answer:
it's simple, put the values in the equation.
5 + d( 3b-2d) = 5 + 4( 3×-3 - 2× 4)
= 5 + 4( -9-8)
= 5+ 4 × -17
= 5-68 = -63 ans.
Answer:
1. KL = 29
2. angle J = 127 degree
3. angle of K = 53 degrees
Step-by-step explanation:
SInce it is a parrallelograme, one thing that will help you is to remember that opposits are the same.
1. KL = JM since they are opposite => KL = 29
2. angle J = angle L since they are opposite => angle J = 127 degrees
3. Since we know that angle J and L are both equal to 127 degree and since the sum of the angles of a parralelogram is 360 degrees, so the sum of the angles of K and M is: 360 - 127 - 127 = 106 degrees.
Since K's and M's angles are equale => 106 / 2 = 53 degrees.
It is an infinite solution. It is this because if you subtract 12x on both sides, you get 8=8, causing an infinite solution equation.
For the third problem, your work should look like this:
-b +/- √b^2 - 4ac / 2a ***** Plug in what you know ***********
-4 +/- √4^2 - 4(6)(-3) / 2(6) ***** Simplify ****************************
-4 +/- √4^2 + 72 / 12
-4 +/- √16 + 72 / 12
-4 +/- √88 / 12 (The -4 and 12 can be simplified since they are constants.)
-1 +/- √88 / 3 (√88 can be broken down)
√88 = 2√22 this means that you should now have:
-1 +/- 2√22 / 3
**** Now you have 2 different answers *************************************
If they want the exact answers, leave the answers as what you have. If they want an approximation as your answer, then simplify the problem further.
For exact answers:
answer 1: answer 2:
-1 + 2√22 / 3 -1 - 2√22 / 3
For completely simplified answers:
answer 1: answer 2:
-1 + 9.38 / 3 -1 - 9.38 / 3
8.38 / 3 -10.38 / 3
x = 2.79 x = -3.46
******* Note that the 9.38 is a rounded value. It is not the exact decimal because it was rounded to the nearest hundredths place. *****************
******* Also note that the first answer is rounded to the nearest tenths place. *********
Step-by-step explanation:
then for y:
so:
