-3x+2y=-4 (line b)
A. (2,-1)
B. (-2,1)
C. (2,1)
D. (-2, -1)
Answer:
Step-by-step explanation:
Hello,
We know that (let's assume that x is different from 0 as we cannot divide by 0)
and we want to estimate
Let's take the square.
So, we can write
Hope this helps.
Do not hesitate if you need further explanation.
Thank you
Answer:
Fisherman traveled 14.4 miles.
Step-by-step explanation:
A fisherman's downstream speed = 6 mph
and upstream speed = 4 mph
Let the fisherman traveled x miles he travels upstream.
Time spent in travelling x miles = hours [Since time = ]
Similarly when fisherman covers x miles down stream
Time spent in x miles = hours
Now total time in going upstream and downstream is 3 hours then
x
5x = 12×3
5x = 36
x = miles.
Since fisherman has traveled 2x distance so the answer will be 14.4 miles
Therefore, fisherman traveled 14.4 miles.
is its density?
Answer:
≈0.0947 kg/m^3
Step-by-step explanation:
p = density
m = mass
v = volume
Formula for density :
p = m/v
We know the mass and volume, so we can simply substitute our values into the equation:
p = m/v
p = 1800kg / 19000 m^3
p = ≈0.0947 kg/m^3
01:05:35
Line CD passes through points C(3, 5) and D(6, 0). What is the equation of line CD in standard form?
5x + 3y = 18
O 5x - 3y = 30
O 5x2y = 30
O 5x + y = 18
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Mark this and retum
Answer:
5x + 3y = 15
Step-by-step explanation:
As Line CD passes through points C(3, 5) and D(6, 0), x (the "run") increases by 3 and y (the "rise") decreases by 5. Thus, the slope of line CD is
m = rise / run = -5/3, and in slope-intercept form the following is true:
y = mx + b => 5 = (-5/3)(3) + b, or b = 5.
Then the equation of the line is y = (-5/3)x + 5. Converting this to standard form, we get:
3y = -5x + 15, or 5x + 3y = 15
A. always
B. somtimes
C. never