Answer:
129.8 approximately
Step-by-step explanation:
So this sounds like a problem for the Law of Cosines. The largest angle is always opposite the largest side in a triangle.
So 11 is the largest side so the angle opposite to it is what we are trying to find. Let's call that angle, X.
My math is case sensitive.
X is the angle opposite to the side x.
Law of cosines formula is:
So we are looking for X.
We know x=11, a=4, and b=8 (it didn't matter if you called b=4 and a=8).
Subtract 80 on both sides:
Divide both sides by -64:
Now do the inverse of cosine of both sides or just arccos( )
[these are same thing]
Time for the calculator:
X=129.8 approximately
Answer:
15.3
Step-by-step explanation:
throu the table we know that she earn (20.40-10.20=10.20)for every two hours
so 1 hour will be 10.20/2=5.1
3 hour: 10.20+5.1=15.3
Answer:
Step-by-step explanation:
You have a circle with radius r = 3 ft and a 3-by-12 rectangle.
Area of circle = πr² = 9π ft²
Area of rectangle = 3 × 12 = 36 ft²
Total area = 36 + 9π ≈ 64.3 ft²
Perimeter of circle = 2πr = 6π ft
Perimeter of rectangular projections = 18 ft
Total perimeter = 6π +18 ≈ 36.8 ft
Answer:-23
Step-by-step explanation:
Its -23
Answer:
4. Composites have many non distinct prime factors, which are used more than once, such as 2,2,5,5 (the prime factors of every multiple of 100). What that means is that there can be two, three, four, or, in fact, infinitely many composite numbers that can have the same distinct prime factors.
Step-by-step explanation:
So, yes.
