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Helium is a gas lighter than air that is used in balloons. The density of helium is
approximately 0.19 kilograms pel cubic meter. You get 15 helium balloons for
your 15th birthday, each with a volume of 15 cubic meters. How many
kilograms of helium do the balloons contain, to the nearest hundredth?

option 2 is correct.

step-by-step explanation:

we are given two inequality equation

x+y> 5 and -3x+2y< -2

first we draw the graph of both function using t-table method

equation: x+y> 5

for x=0, y=5

for x=-5, y=0

table:

x   :   0     5

y   :   5     0

test point (0,0) , 0> 5

false

equation: -3x+2y< -2

for x=0, y=-1

for x=2, y=4

table:

x   :   0     2

y   : -1       4

test point (0,0) , 0< -2

true

now we draw the graph. see the attachment for graph.

common region would be solution set.

option 2 is correct.

the anwser is d) 75°

step-by-step explanation:

1st part is 64,000,000

2nd part 500,000

step-by-step explanation:

sina-sinb

cosb+cosa

tana-tanb

cos0+cos x pi/3

20tan

step-by-step explanation: