Answer:
Katy's family got to the beach at 9:55am.
Step-by-step explanation:
In order to find Katy's family's arrival time at the beach, you need to first add amount the amount of time they spent on each activity. Since there are 60 minutes in one hour, you can add up all the minutes together and then divide by 60 minutes to get the total time in hours:
55 minutes + 115 minutes (1 hr and 55 min) + 105 minutes (1 hr and 45 minutes) = 275 total minutes
275 ÷ 60 = 4 hours and 35 minutes
If Katy's family was done with their activities at 2:30pm, we need to subtract 4 hours and 35 minutes from 2:30pm to get their arrival time. 2:30pm - 4 hours = 10:30am, now subtract another 35 minutes to get 9:55am.
Answer:
6.75
Step-by-step explanation:
A of rectangle = 2*1.5=3
A or triangle= (7-2)*1.5/2 = 5*1.5/2 =3.75
Area trapezoid =A rectangle +Atriangle = 3+3.75=6.75
Answer:
29.7
Step-by-step explanation:
Right now you have three values:
a=45
c=23
B=36°
(note: a side is opposite of its corresponding angle in a triangle)
Since you need to find b and you have the other 2 sides and b’s corresponding angle, you use the law of cosines. The formula law of cosines, in this problem, will be:
b^2 = (a^2) + (c^2) - 2ac(cosB)
Now you just substitue in your values:
b^2 = (45^2) + (23^2) - 2(45)(23)(cos 36°)
Simplify the equation:
b^2 = 2025 + 529 - 2070(cos36°)
b^2 = 2554 - 1674.6652
b^2 = 879.3348
Now you take the square root so you can get rid of the square on b:
b = 29.7 (rounded to the nearest tenth)
Answer:
Relative Frequency
relative frequency, divide the frequency by the total number of data values.
Answer:16
Step-by-step explanation:
Start with whats inside (11+6) (17) then you will multiply 7 and 4 = 28+5 =33 then back to 17,,,, 33-17=16
