5x^2 +7x -10
5x^2 (-6x + 13x) - 10
170,000 square kilometers, divide by 10, or take off a 0
Hello!
To find the value of b, we need to use the Law of Sines. The law states,
sin A / a = sin B / b = sin C / c.
We are given these values: sin A = 55 degrees, side a = 8 cm, sin C = 82 degrees.
Since angle B is not given, we have to find it ourselves. We can find the measure of angle B by subtracting both the given angle values from 180 degrees because every triangle is equal to 180 degrees.
180 - 55 - 82 = 43 | The measure of sin B = 43 degrees.
sin (55) / 8 = sin (43) / b (multiply both sides by b)
0.10239... · b = 0.68199... (divide both sides by 0.10239...)
c = 6.6607...
The measure of side b is equal to about 6.7 centimeters.
Answer: 5 11/28
Improper Fraction Answer: 151/28
Decimal Answer: 5.3928571
Answer:
58 square feet
Step-by-step explanation:
The room is already broken down into two smaller rectangles.
The smaller of the two measures 4 ft by 2 ft.
, so substitute 4 for
and 2 for
.
(smaller rectangle)
, or
.
(smaller rectangle) 
The larger measures 10 ft by 5 ft, so using the same method, multiply
times
.
(larger rectangle)
, or
.
(larger rectangle) 
Add the two rectangles' areas together to find the total area of the room.
8 + 50 = 58