Answer:
I say its number 2
Step-by-step explanation:
Answer:
see explanation
Step-by-step explanation:
Parallel lines have equal slopes
the equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y-intercept )
y = 5x + 1 is in this form with slope m = 5
rearrange 2y - 10x + 3 = 0 into this form
add 10x to both sides
2y + 3 = 0 + 10x ( subtract 3 from both sides )
2y = 10x - 3 ( divide all terms by 2 )
y = 5x -
← in slope- intercept form with slope m = 5
Since both lines have a slope of 5 then they are parallel lines
Let the height of the building be x. Let the initial distance of the ant from the building be y, then
tan 32 = x/y
y = x/tan 32 . . . . . . . . (1)
tan 22 = x/(y + 66)
y tan 22 + 66 tan 22 = x
y = (x - 66 tan 22)/tan 22 . . . . . . . . (2)
Equating (1) and (2), we have
x/tan 32 = (x - 66 tan 22)/tan 22
x tan 22 = x tan 32 - 66 tan 22 (tan 32)
x(tan 32 - tan 22) = 66 tan 22 (tan 32)
x = (66 tan 22 (tan 32))/(tan 32 - tan 22) = 66(0.4040)(0.6249)/(0.6249 - 0.4040) = 16.6626/0.2208 = 75.4
Therefore, the height of the building is 75.4 feet.
Answer:
y=2
Step-by-step explanation:
<u>note:</u><u> </u><u>it</u><u> </u><u>only</u><u> </u><u>says</u><u> </u><u>to</u><u> </u><u>figure</u><u> </u><u>out</u><u> </u><u>y</u>
x+y+z=4
x+z+y=4
2+y=4 (since x+z=2)
y=4-2
y=2
A)250 tens
B)1400 hundreds
C)320 tens
D)21000 thousands