Answer:
(3,2)
Step-by-step explanation:
I changed the first equation to x=y+1. Then I substituted the x in the second equation with y+1. So, I got 4(y+1)-3y=6. Then 4y+4-3y=6 turns into y=2. Then you replace y with 2 in the first equation. -x+2=-1. -x=-3 or x=3.
Answer:
Because the diagonals of a parallelogram bisect each other (its a property of a parallelogram), we know that 2x - 1 = 7 so that means x = 4.
Answer:
8.3
Step-by-step explanation:
Answer:
Therefore m∠ B is 42.1°
Step-by-step explanation:
Given:
In Δ ABC
AB = 15 = c
AC = 18 = b
∠ C = 34°
To Find:
∠ B = ?
Solution:
In Δ ABC We have Sine Rule as
Substituting the given values we get
![\frac{b}{\sin B}= \frac{c}{\sin C}](https://tex.z-dn.net/?f=%5Cfrac%7Bb%7D%7B%5Csin%20B%7D%3D%20%5Cfrac%7Bc%7D%7B%5Csin%20C%7D)
![\frac{18}{\sin B}= \frac{15}{\sin 34}\\\\\sin B=0.671\\\\\therefore B=\sin^{-1}(0.671)=42.14\°](https://tex.z-dn.net/?f=%5Cfrac%7B18%7D%7B%5Csin%20B%7D%3D%20%5Cfrac%7B15%7D%7B%5Csin%2034%7D%5C%5C%5C%5C%5Csin%20B%3D0.671%5C%5C%5C%5C%5Ctherefore%20B%3D%5Csin%5E%7B-1%7D%280.671%29%3D42.14%5C%C2%B0)
Therefore m∠ B is 42.1°
A mixed number is whole numbers and a fraction so
because there are 102 elevens you divide
102/11 = 9 and some
9*11=99
102- 99= 3
there are 3 groups of eleven left over
99 3/11 <- answer