4 tens and 10 ones is 410
412 movies
Answer:
1.) -7/2
2. -42/5
hope this helps, I just did the math.
<h3>Write a model in simplified form for the total time t (in hours) of the trip:</h3>
<h3>It takes 2.95 hours when r is 4 miles per hour</h3>
<em><u>Solution</u></em>:
Given that,
<h3>You travel 3 miles downstream in a kayak at a speed of r miles per hour</h3>
Downstream:
Speed = r miles per hour
Distance = 3 miles
Time taken is given as:
<h3>You turn around and travel 4 miles upstream at a speed of 0.5r miles per hour</h3>
Upstream:
Speed = 0.5r miles per hour
Distance = 4 miles
Therefore,
<h3>Finally, you turn around and return to your original starting point at a speed of r + 1 miles per hour</h3>
Therefore,
<em><u>a)Write a model in simplified form for the total time t (in hours) of the trip</u></em>
The total time taken is:
eqn 1 + eqn 2 + eqn 3
<em><u>b)How long does your trip take when r is 4 miles per hour?</u></em>
Substitute r = 4
Thus it takes 2.95 hours when r is 4 miles per hour
Answer:
121 degrees
Step-by-step explanation:
The "arc length" formula is s = rФ, where Ф represents the central angle in radians (not degrees).
Here r = 18 ft and s = 38 ft, and so:
38 ft
s = rФ becomes Ф = ------------ = 2.111 radians
18 ft
which, in degrees, is:
2.111 rad 180 deg
------------- * --------------- = 121 degrees, to the nearest degree
1 3.142
The Answer is
<h2>
24 + 8a</h2>
or, 8a + 24
To get the answer we have to distribute the 8, which means we have to multiply both terms in the parentheses by 8.
8 x 3 = 24
8 x a = 8a
So the answer is 24 + 8a
<h3><u>
</u></h3>
