Answer:
Number of marbles Andrea has can be expressed as =
marbles
Step-by-step explanation:
Given:
Number of marbles Jennifer has =
marbles
Andrea has 4 times the number of marbles that Jennifer has.
∴ Number of marbles Andrea has can be expressed as =
marbles
Answer:
The the angle which the wire make with the ground is 1.280 radian .
Step-by-step explanation:
Given as :
The length of the wire attached to the top of building = OB = 70 foot
The distance of wire anchored from base of ground = OA = 20 feet
Let the angle made by wire en and ground = Ф
Now from , In Triangle AOB
Cos angle = 
Or, Cos Ф = 
or, Cos Ф = 
Or, Cos Ф = 
∴ Ф = 
I.e Ф = 73.39°
Now in radian ,
∵ 180° =
radian
∴ 73.39° =
× 73.39°
=
× 73.39° = 1.280 radian
Hence The the angle which the wire make with the ground is 1.280 radian . Answer
Except x+12=5x-2
because:
4+12= 5*4-2
16=20-2
16=18 -- which is not true
Yes it can hold up to a little over 4 liters