The third one is the correct answer
3305.5870967
Is the answer
Answer:
Since
△
P
Q
R
is a right-angled triangle, we can use the cosine or sine or tan rule to find the
∠
P
(1) Sine
sin
∠
P
=
opposite
hypotenuse
=
12
13
∠
P
=
sin
−
1
(
12
13
)
=
67.38
(2) Cosine
cos
∠
P
=
adjacent
hypotenuse
=
5
13
∠
P
=
cos
−
1
(
5
13
)
=
67.38
(3) tan
tan
∠
P
=
opposite
adjacent
=
12
5
∠
P
=
tan
−
1
(
12
5
)
=
67.38
Answer:
0.341
or 1.0723
Step-by-step explanation:
the volume of hemisphere = (2/3)
r = (1/2)d = 0.8
(2/3)
= 0.341 = 1.0723
Hello!
The time difference between checkpoint 1 and checkpoint 2 is an hour and a half.
At checkpoint A, the total amount of miles driven is 120. At checkpoint B, the total amount of miles driven is 195.
To find the amount of miles driven between checkpoint 1 and 2, you will subtract the amount of miles at checkpoint 1 from checkpoint 2:
195-120= 75
The car drove 75 miles between 1:00pm to 2:30 pm. Because the total time between the checkpoints was an hour and a half, we can divide it by three (90 minutes total). We also need to divide the number of miles (75) by three to find an accurate answer.
90/3=30
75/3=25
The car drove 25 minutes in half an hour. Now, one hour consists of 60 minutes, so we will multiply both calculations by 2 (for the total hour and the total amount of miles driven in the hour):
30x2=60
25x2=50
The car drove 50 miles per hour between checkpoints A and B.
I hope this helps you! Have a great day!
