The average mass of a man is 85 kg and of a woman is 70kg. a) Work out the average mass of a person.

A lift can safely carry 570 kg.
b) Work out the number of people the lift can safely carry.

17

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:

it shoild be o

step-by-step explanation:

step-by-step explanation: