Answer:
2.4
Step-by-step explanation:
- √(x² +49) = x + 5
- (√(x² +49) )²= (x + 5)² ⇒ square of both sides
- x² + 49 = x² + 10x + 25 ⇒ simplifying, x² get cancelled
- 10x = 49 -25
- 10x = 24
- x= 24/10
- x= 2.4
<u>Answer is</u> 2.4
4(1/2x - 3)= 8
2x - 12 =8
Add 12 to both sides
2x = 20
Divide by 2 on both sides
X= 10
Answer:
City A:
City B:
City B has a greater change in temperature.
Step-by-step explanation:
City A:
Let the initial temperature of city A at 8 AM =
Temperature change from 8 AM to 9 AM: 4 rise
Temperature at 9 AM =
Temperature change from 9 AM to 10 AM: 7 drop
Temperature at 9 AM =
Total change in temperature = drop
City B:
Let the initial temperature of city B at 8 AM =
Temperature change from 8 AM to 9 AM: 6 drop
Temperature at 9 AM =
Temperature change from 9 AM to 10 AM: 2 drop
Temperature at 9 AM =
Total change in temperature = drop
Therefore, the answer is:
<em>City B</em> has a greater change in temperature.
Given that the angles of the two sectors are equal, we can find the relationship between the angles, radii, and the lengths of the arc
The length of the arc (S) is given by the formula
Then we can make the angle the subject of the formula
For the first sector
For the second sector
Simplifying the equation, we will obtain