60 seconds in 1 minute.....60 minutes in one hr....60 * 60 = 3600 seconds/hr
110/3600 = x / 2......110 km in 3600 sec = x km in 2 sec
cross multiply because this is a proportion
(3600)(x) = (110)(2)
3600x = 220
x = 220/3600
x = 0.0611 km/hr <==
Answer:
48.52
Step-by-step explanation:
SOHCAHTOA
Use tan(x) = opposite / adjacent
tan (15) = 13/x
x = 13/ tan(15)
x = 48.5166605 round to 48.52
*when using calculator don't forget to use degrees not radians or you will get the wrong answer*
Step-by-step explanation:
bruh did u have hentoi as your pic
Answer:
351.68 m²
Step-by-step explanation:
Find the area of the flower bed first
πr² = (3.14)(12)² = 452.16
then area of the bigger circle (including the sidewalk)
πr² = (3.14)(16)² = 803.84
Subtract the two areas and that will give you the area of the sidewalk
803.84 - 452.16 = 351.68 m²
Answer:
5.13
Step-by-step explanation:
Number of sampled workers= n= 1000
Percentage of residents favouring construction= p' = 60% = 60/100= 0.6.
Testing the claim that the percentage of people favouring the construction is more than 56%= p= 56/100 = 0.56.
To calculate the test statistics we use the formula below;
Test statistics= √n (p' - p)/ √[p×(1-p)] -----------(1).
Substituting the value into equation (1) above, we have;
Test statistics= √1000 (0.6-0.56) / √[0.56×(1-0.56)]
Test statistics= (31.62)(0.04) / √0.5(0.44) = 1.2648/ 0.2464
Test statistics= 5.13312
= 5.13 (to 2 decimal places)