True
Note that:
![secant \theta = \frac{1}{cos\theta}](https://tex.z-dn.net/?f=secant%20%5Ctheta%20%3D%20%5Cfrac%7B1%7D%7Bcos%5Ctheta%7D)
The graph of sine and cosine functions are very similar. They only have a shift in the x -axis.
That is, sin x = cos (90 - x)
Since there is a great similarity between the sine and cosine graphs, and the secant graph is an inverse of the cosine graph, the graph of sine can be used to construct the graph of the secant function
Mathematically:
since sec x = 1 / cos x
and, cos x = sin (90 - x)
therefore, sec x = 1 / sin (90 - x)
The graphs of the sine and secant functions are attached to this solution
Learn more here: brainly.com/question/9554579
Answer:
X intercept is -7 and Y intercept is 7.
Step-by-step explanation:
In order to find X intercept of an equation ,we put y =0
and for Y intercept we put x =0
therefore Y intercept of given equation y = x+7 is
plugging x =0 in the equation ,we get
y = 0 +7 = 7
y = 7 ,Y intercept is 7
For X intercept ,we plug y =0
0 = x+7
x = -7
So X intercept is -7
And Y intercept is 7
Let 'x' be the problems worth 2 points.
Let 'y' be the problems worth 3 points.
Since, there are 38 total problems.
So,
(equation 1)
x = 38-y
Since, a perfect score is 100 points.
So,
(equation 2)
Substituting the value of 'x', we get
![2(38-y)+3y=100](https://tex.z-dn.net/?f=2%2838-y%29%2B3y%3D100)
![76-2y+3y=100](https://tex.z-dn.net/?f=76-2y%2B3y%3D100)
![76+y = 100](https://tex.z-dn.net/?f=76%2By%20%3D%20100)
y = 24
x+y = 38
x = 38-24 = 14
So, 14 problems are worth 2 points and 24 problems are worth 3 points.
Answer:
x = 6
Step-by-step explanation:
When 2 chords of a circle intersect then the product of the parts of one is equal to the product of the parts of the other, that is
2x = 3 × 4, that is
2x = 12 ( divide both sides by 2 )
x = 6
Answer:
b=2
Step-by-step explanation:
15b+10b=50
25b=50
b=2