The figure displays a unit circle and an angle of 1 radian. The tick marks on the circle are spaced at every two-tenths radian. Use the figure to find a positive angle whose cosine is - 0.70. 0.8- 0.8 radian Find one positive angle whose cosine is -0.70. 0.6 radian 0.6- 04 radian 0.4- One angle is (Type your answer in radians. Type an integer or a decimal rounded to one decimal place as needed.) 0.2 radian 0.2- 1 radian 0.20406 08
Unitary Method
The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products.
Speed, Time, and Distance
Imagine you and 3 of your friends are planning to go to the playground at 6 in the evening. Your house is one mile away from the playground and one of your friends named Jim must start at 5 pm to reach the playground by walk. The other two friends are 3 miles away.
Profit and Loss
The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.
Units and Measurements
Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experiments to set up the devices.
![3.3.51
Question
The figure displays a unit circle and an angle of 1 radian. The tick marks on the circle are spaced
at every two-tenths radian. Use the figure to find a positive angle whose cosine is - 0.70.
Ay
2.
To 8 radian
0.8-
Find one positive angle whose cosine is -0,70.
0.6 radian
0.6-
0.4 radian
One angle is
(Type your answer in radians. Type an integer or a decimal rounded to one decimal place as
needed.)
0.4-
0.2 radian
0.2
1 radian
020.40.6 0.8
(1)
More
y
D20 Enter your answer in the answer box and then click Check Answer
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![3.3.91
Question Help
Because the values of circular functions repeat every 2x, they are used to describe things that repeat periodically. For example, the maximum afternoon temperature in a given city might be modeled
by the formula below. In the formula, t represents the maximum afternoon temperature in month x, with x = 0 representing January, x= 1 representing February, and so on.
XI
t= 85 - 20 cos
The maximum afternoon temperature in February is
(Round to the nearest integer as needed.)
M
ay
020
Enter your answer in the answer box and then click Check
parts
remaining](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F64b56f96-d2d4-4123-9500-31ffff1f3fdb%2F4225a976-840a-4a5e-91fe-c4bd5e438aba%2F7crysy_processed.jpeg&w=3840&q=75)
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