In the half-angle formula for sine and cosine, notice that a plus/minus sign appears in front of each radical (square root). Whether your answer is positive or negative depends on which quadrant the new angle (the half angle) is in
Standard Form:
68,020
Expanded Notation Form:
68,020 =
60,000
+ 8,000
+ 0
+ 20
+ 0
Expanded Factors Form:
68,020 =
6 × 10,000
+ 8 × 1,000
+ 0 × 100
+ 2 × 10
+ 0 × 1
Expanded Exponential Form:
68,020 =
6 × 10^4
+ 8 × 10^3
+ 0 × 10^2
+ 2 × 10^1
+ 0 × 10^0
Word Form:
68,020 =
sixty-eight thousand twenty
The square will have area
.. (9 cm)^2 = 81 cm^2.
The two triangles together will have area
.. (9 cm)*(12 cm) = 108 cm^2.
The sum of the areas of those three shapes is
.. 81 cm^2 +108 cm^2 = 189 cm^2
- 1/3 -5/8
-8/24 - 15/24
-23/24
The first step is to find the least common denominator. The LCD of 3 and 8 is 24. Now, mulitply -1/3 by 8/8 and -5/8 by 3/3. This will give you fractions with equal denominators which you need to find before subtracting. Finally, you simplify the equation. Since this cannot be simplified, -23/24 is the answer
Answer:
Your answer is $24
Step-by-step explanation:
5*4 is 20, so all that you have to do it 6*4
