Answer:
x = 0 , π
Step-by-step explanation:
- Rewrite it by using the identity
- Add 4sin x to both the sides.
- Take sin x common from the expression in L.H.S.
Here , we can get two more equations to find x.
1) 
- Divide both the sides by sin x
- Substract 4 from both the sides.
2)
- Divide both the sides by (sin x + 4)
over interval [0 , 2π).
The two cities are 7 inches apart, so they are 7*20=140 miles apart.
Divide 140 miles/35 miles, and you'll get 4. The scale is 3 inches, so your answer is 12 or C.
<span>Population mean (u) = $131.80
Standard deviation (sd) = $29.12
Sample number (n) = 15
Sample mean = $150
Using Z score formula..
Z = (150 - 131.80)/ (29.12)/15^1/2
Z = 2.420
Area under the curve (alpha) with Z = 2.420 = 49.22
In percentage Alpha = 0.4922
Probability = 1-Alpha
Probability = 1- 0.4922 = 0.5078</span>
Answer:
as long as it isn't an imaginary number
Step-by-step explanation:
Answer:
2.83 x 10^5 = 283,000
Step-by-step explanation:
When you have the 10^5 multiplying to 2.83, you are moving the number further to the left of the decimal, making it larger every power of 10. if it was 4 powers of 10, the answer would be 28,300, 3 powers of 10 would be 2,830, etc.
PS. I think you forgot to add the decimal in 2.83, 283 x 10^5 is not written in Scientific Notation.
