We have that
using a graph tool--------------> graph the <span> cosecant function
</span>see the attached figure
the answer is the option B
When the ball will hit the ground, the height will be zero. So we need to replace
with 0 in our equation, and solve for
:
To solve this equation we are going to use the quadratic formula:
.
From our height equation, we can infer that
,
, and
. So lets replace those values in our quadratic formula to find
or
or
Since time cannot be negative,
is the solution of our equation.
We can conclude that the ball will hit the ground after
2.71 seconds.
10 times 7 is 70.
So, it is 70 thousands.
Or in other words, seven ten-thousands.
or just write it normally: 10*7*1000=70000=seventy thousand
Wee!
Answer:
OPtion I is right
Step-by-step explanation:
Once we know sin of an angle, and it lies in II quadrant, we know that
cos, sec, tan and cot would be negative but csc will be positive.
So use the fact that
Thus cos is obtained using negative square root.
Now tan = sin/cos, and sec = 1/cos:
cot =1/tan and csc =1/sin
Thus all value can be obtained easily
So option I
Answer:
Kyle is correct, because it is not possible to draw a trapezoid that is a rectangle.
Step-by-step explanation:
Trapezoid:
- It is a quadrilateral with only one pair of of parallel sides
- Also in Trapezoid all the four angles are not right angle
- In Trapezoid is it not necessary that the diagonals bisect at all the cases
- The opposite angles are supplementary
Rectangle:
- Opposite sides of a rectangle are parallel and equal, thus having two pairs of parallel lines
- In a Rectangles all the four angles are 90 degrees i.e, right angle
- Diagonals of rectangles must bisect each other
- The sum of any two angles is supplementary
