Answer:
0
Step-by-step explanation:
sin²θ + cos²θ = 1
secθcosθ = (1/cosθ)cosθ = 1
1 - 1 = 0
Answer:
Area of the trapezoid = 36√6 cm²
Step-by-step explanation:
Area of the trapezoid = height ( base1+ base2/2)
height = √36
base1= 3√6
base 2= 3√54
Putting the values in the formula
Area of the trapezoid = height ( base1+ base2/2)
= √36 ( 3√6+3√54/2)
= 6 ( 3√6+3√6*9/2) Factoring
= 6 ( 3√6+3*3√6/2) Multiplying
= 6 ( 3√6+9√6/2) adding
= 6 ( 12√6/2)
= 6 ( 6√6)
= 36√6 cm²
The sum of two variables having the same units is given by adding the magnitudes of the quantities and expressing the outcome in the units of the quantities
Daemon's speed is (v + 45) mi/h
The reason the above value for Daemon's speed is correct is as follows:
The known parameters are;
The speed with which Bill was travelling = v mi/h
The speed with which Daemon was travelling = 45 mi/h faster than Bill
Method:
By dimensional analysis, we note that the given quantities have the same units, and therefore, they represent the same quantity of speed
To find Daemon's speed, the amount by which his speed is more than that of Bill's speed is added to the given amount of Bill's speed as follows;
Solution:
Daemon's speed = v mi/h + 45 mi/h = (v + 45) mi/h
Learn more about variable addition here:
brainly.com/question/22965573
brainly.com/question/242905
Subtract 87 from 700
700 - 87 = 613
You need 613 more points
Given:
There are given that the two paths and one path are 2 miles from the road.
Explanation:
Suppose the distance from the playground to the road is x.
To find the value x, we need to use the cos function;
So,
From the cos function in the given right angle triangle:
![cos50^{\circ}=\frac{x}{2}](https://tex.z-dn.net/?f=cos50%5E%7B%5Ccirc%7D%3D%5Cfrac%7Bx%7D%7B2%7D)
Then,
![\begin{gathered} cos50^{\operatorname{\circ}}=\frac{x}{2} \\ 0.64=\frac{x}{2} \end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%20cos50%5E%7B%5Coperatorname%7B%5Ccirc%7D%7D%3D%5Cfrac%7Bx%7D%7B2%7D%20%5C%5C%200.64%3D%5Cfrac%7Bx%7D%7B2%7D%20%5Cend%7Bgathered%7D)
Then,
![\begin{gathered} 0.64=\frac{x}{2} \\ x=0.64\times2 \\ x=1.28 \\ x=1.3mi \end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%200.64%3D%5Cfrac%7Bx%7D%7B2%7D%20%5C%5C%20x%3D0.64%5Ctimes2%20%5C%5C%20x%3D1.28%20%5C%5C%20x%3D1.3mi%20%5Cend%7Bgathered%7D)
Final answer:
Hence, the correct option C.