Answer:sin
2
θ
=
−
120
169
and
cos
2
θ
=
−
119
169
Explanation:
As
sin
θ
=
−
12
13
i.e. negative and
cos
θ
is positive,
θ
lies in
Q
4
i.e.
3
π
2
<
θ
<
2
π
cos
θ
=
√
1
−
(
−
12
13
)
2
−
√
1
−
144
169
=
√
25
169
=
5
13
Hence,
sin
2
θ
=
2
sin
θ
cos
θ
=
2
×
(
−
12
13
)
×
5
13
=
−
120
169
and
cos
2
θ
=
cos
θ
−
sin
2
θ
=
25
169
−
144
169
=
−
119
169
Step-by-step explanation:
thier is your anwer for your work let me know if it right in rate me the most brainlest
0.981 is less then 1
2.3 is greater then 1
0.981 < 2.3 (it is less then)
Answer:
<em>$83.69</em>
Step-by-step explanation:
Given the following
Initial Cost of the brunch = $72.80
Percentage tip = 15%
Tip paid = 15% of $72.60
Tip paid = 0.15 * 72.60
Tip paid = $10.89
Total cost of brunch = $72.80 + $10.89
Total cost of brunch = $83.69
<em>Hence the total cost of her brunch is $83.69</em>
Answer:
2.25
Step-by-step explanation:
-3x+10=5x-8
+8 +8
-3x+18=5x
+3x +3x
18=8x
_ _
8 8
2.25=x
The numbers 7, 11, 12, 13, 14, 18, 21, 23, 27, and 29 are written on separate cards, and the cards are placed on a table with th
Sophie [7]
there are a total of 10 cards
there are 3 cards with even numbers
so you have a 3/10 probability of picking an even n umber
