Answer:
8x
Step-by-step explanation:
Multiply the first equation by 2:-
2y + 4.6 = 0.90x
2y - 0.90x = -4.6
second equation is
-2y - 4.2x = -7.8
Adding:-
-5.1x = -12.4
x = 2.4
-2y = -7.8 + 4.2(2.4) = 2.3
x = -1.2
Answer x = 2.4 and y = -1.2
Its choice A
if we do not consider Aces face cards
there are 12 face cards in a deck ( 4 jacks 4 queens 4 kings)
there are 52 cards
drawing the first card
12/52
second card without replacement
11/51
12/52*11/51
1/4 *11/51
11/204
Answer:
x = 42
Step-by-step explanation:
The two angles are complementary so the add to 90 degrees.
x+48 = 90
Subtract 48 from each side
x+48-48=90-48
x = 42
Answer:
21.4 m
Step-by-step explanation:
let height of tree = h
tan 65° = h/10
h = tan 65° x 10
h = 21.4 m
Hope this helps!