Answer:
X+0.375=y
Step-by-step explanation:
Answer:
Exact Form:
f=-5/3
Decimal Form:
f= -1.6
Mixed Number form:
f= -1 2/3
Step-by-step explanation:
Solve for f by simplifying both sides of the equation , then isolating the variable .
Exact Form:
f=-5/3
Decimal Form:
f= -1.6
Mixed Number form:
f= -1 2/3
Answer:
(-3,-20)
Step-by-step explanation:
4 +8x = y ...... equation (1)
6x - y = 2 ........equation(2)
from equation 2
6x - y = 2
6x -(4+8x) =2
6x - 4 + 8x = 2
+4 +4
6x - 8x = 6
-2x=6
divide by -2
x= -3
put x in equation (1) to solve for y
4 + 8x = y
4+8(-3)=y
4-24=y
-20=y
y= -20
solution = (-3,-20)
Because angleCBD＋angleBDC＋angleC＝180
so angleCBD＋angleBDC＝180－angleC＝180－82＝98
because BC＝DC
so angleCBD＝angleBDC
so 2 angleCDB＝98
so angleCDB＝49
so y＝29
by Joy Xu，紫馨雪汐
