Answer:
5.236
Step-by-step explanation:
So that's vector notation. In vector notation we use i , j , k . They have hats on them as well. i will correspond to the x axis and j will correspond to the y axis and k to the z axis if you're working with 3-d models. a and b are just scalars that are being multiplied to the vectors. Just substitute i = ax and j = by and v = c
Answer:
See the solutions below
Step-by-step explanation:
First note that the opposite side of a parallelogram are equal, hence;
For Parallelogram FIRE
fi = re
ef = ir
Given
fi = (3x-5)cm
ir = (2y -7)cm
re = (x+7)cm
ef = (y+3)cm\
a) If fi = re, then;
3x - 5 = x+7
3x - x = 7+5
2x = 12
x = 12/2
x = 6
b) Since FI = 3x - 5
FI = 3(6) - 5
FI = 18 - 5
FI = 13cm
c) Also ef = ir
y+3 = 2y - 7
y - 2y = -7-3
-y = -10
y = 10
d) EF = y+3
EF = 10 +3
EF =13cm
e) Perimeter of the parallelogram = FI + IR + RE + EF
Perimeter of the parallelogram = 13cm + 13 + 13cm + 13cm
Perimeter of the parallelogram = 52cm
Answer:
b) Reflection over y = -2
Step-by-step explanation:
Reflection over y = -2
Answer:
its 2.3%
Step-by-step explanation:
i did the test