Answer:
x = 35
Step-by-step explanation:
The segment from the vertex of the triangle is an angle bisector and divides the opposite side into 2 segments that are proportional to the other 2 sides, that is
=
( cross- multiply )
8x = 280 ( divide both sides by 8 )
x = 35
Answer:
sec
Step-by-step explanation:
1/cosin = sec or cosin^-1
Answer:

Step-by-step explanation:
we know that
The roots of the quadratic function (x-intercepts) are
x=-1 and x=5/3
so
we can write the equation of the parabola as

where
a is a coefficient
Remember that
The parabola pass through the point (5,40)
substitute the value of x and the value of y of the ordered pair in the quadratic equation and solve for a
x=5, y=40



substitute

apply distributive property

see the attached figure to better understand the problem
5/30+4/6
5/30=1/6
1/6+4/6=5/6
5/6
Hope I helped!
The correct answer would be 6 minutes and 52 seconds.