Answer:
120°
Step-by-step explanation:
The angles that has 120° is the same as angle E.
Angle E = 120°
Angle D = 180° - 120° = 60°
60° + Angle F = 180°
Angle F = 180° - 60°
Angle F = 120°
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Answer:
the answer is $10,031.00 because although the six is there it has no effect on the four. Four or below leave it alone 5 or above give it a shove..love yall hope i helped and can i get brainliest
Answer:
x=150
y=240
Step-by-step explanation:
*Use simultaneous equation solving
1.Label your equations
x+y=390......1
2x+4y=1260......2
*make one of the unknowns subject of formula, to form equation 2
x=390-y.....3
*sub.3 into 2
2(390-y)+4y=1260
780-2y+4y=1260
2y+780=1260
y=240
sub. y into 3
x=390-y
x=390-240
x=150
Answer:
common difference=5
number of term(n)=20
Step-by-step explanation:
a=4, ![T_{4} =19 , T_{n}=99](https://tex.z-dn.net/?f=T_%7B4%7D%20%3D19%20%2C%20%20T_%7Bn%7D%3D99)
but T_{4} =19= a+3d
a+3d=19
4+3d=19
3d=19-4
3d=15
d=15/3
d=5
=a+(n-1)d
99=a+(n-1)d
99=4+(n-1)*5
99=4+5n-5
99=5n-1
5n-1=99
5n=99+1
5n=100
n=100/5
n=20