Plz help me in six number group A

1m 54cm

Step-by-step explanation:

10 students at 1m 40cm

15 students at 1m 58cm

13 students at 1m 60cm

Keep in mind that ratio between cm to m is 1cm/0.01m.

So let find the average by converting cm to m first for the 38 students.

10 students:  1m + (40cm)(0.01m/1cm) => 1.4 m

15 students:   1m  + 58cm(0.01m/1cm)  => 1.58 m

13 students:  1m 60cm(0.01m/1cm)  => 1.60 m

so the average is weighted:

(10*1.4 +15*1.58 + 13(1.6))/38

Therefore the average model height is 1.54 m or 1m 54cm

i would pic false cause it goes down towards negative

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: