the graph shows the speed of a vehicle during the final 50 seconds of a journey. at the start of the 50 seconds the speed is k metres per second. the distance travelled during the 50 seconds is 1.7km. work out the value of k

assuming you mean addition: addition and subtraction are reverse operations.

step-by-step explanation:

find the magnitude of the trig term  

csc

(

x

)

−

1

by taking the absolute value of the coefficient.

1

find the lower bound of the range.

tap for more

y

=

−

2

find the upper bound of the range.

tap for more

y

=

0

the range is  

y

≤

−

2

or  

y

≥

0

.

(

−

∞

,

−

2

]

∪

[

0

,

∞

)

{

y

|

y

≤

−

2

,

y

≥

0

}

step-by-step explanation:

what i would say the best answer is a. 40.5