The expression that represents the approximate length of BC is; A: (3) sin(66)/sin (38)
<h3>Trigonometric Ratios</h3>
From the given triangle ABC, we see that;
∠A = 66°
∠C = 38°
AB = 3
Thus using sine rule, we have;
AB/sin C = BC/sin A
3/sin 38 = BC/sin 66
BC = (3sin 66)/sin 38
BC = 4.45
Read more about Sine rule at;brainly.com/question/4372174
Answer:
A
Step-by-step explanation:
A function maps one member in the domain ( x values ) to exactly one member in the range (y values ).
A is the only diagram representing this characteristic.
Answer:
Start to end
1) N
2)P
3)J
4)B
5)A
6)i
7)L
8)E
9)G - 14b
10)H
11)O
12)M
13)C
14)D
15)K
16)F
Hope this helps, I've matched it up with the letters starting at the top box first, then going down.
Hi there! I can help you with this.
6. Angle measurements:
x = 23
51 degrees
80 degrees
(2x + 3) = 49 degrees
8.
x = 30 degrees
3x = 90 degrees
2x = 60 degrees
x = 30 degrees
9.
x = 29 degrees
90 degrees
(2x - 2) = 56 degrees
(x + 5) = 34 degrees
Answer:45
Step-by-step explanation:
Let the unit place be ‘x'
Tenth place be y
The number is 10y+x
x+y = 9 (according to the condition) (1)
Digits are interchanged Unit place' y ‘& tenth place ‘ x'
New no is 10x +y
This is 9 more than the original number
10x+ y = 10y+x +9
10x-x+y-10y = 9
9x-9y= 9
x-y = 1 (dividing by 9) (2)
Adding the two equations
2x = 10
x= 5
Substituting the value of x in first equation
y = 4
The number is 45, the original number is 54 this is 9 more of the new number.
Ans :45
