Find the unit rate: 340 birds seen in 5 hours
2 answers:
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Answer:
The length of a side of the flag is 7.2inches
Step-by-step explanation:
Let length = x
Let hypotenuse = x+3
Using Pythagoras' Theorem:
x^2 + x^2 = (x+3)^2
x^2 + x^2 = x^2 + 6x + 9
2x^2 = x^2 + 6x + 9
×^2 - 6x - 9 = 0
x=[-(-6)+sqrt.(-6)^2-4(1)(-9)]/2(1)
×=[6+sqrt.72]/2
×=7.2inches
×=[-(-6)+sqrt.(-6)^2-4(1)(-9)]/2(1)
x=[6-sqrt.72]/2
×=-1.2(rej)
(PS. sqrt is square root)
(Correct me if i am wrong)
10y - 5x = 40 Add 5x to both sides
10y = 5x + 40 Divide both sides by 10
y =
x + 4
The y-intercept is 4 and the slope of the line is.
You can find these by comparing your equation to the equation y = mx + b, where m is the slope of the line and b is the y-intercept.
10y = 5x + 40 Divide both sides by 10
y =
The y-intercept is 4 and the slope of the line is
You can find these by comparing your equation to the equation y = mx + b, where m is the slope of the line and b is the y-intercept.
Answer:
Step-by-step explanation:
Using the formula for the exponential decay that is , we have N=
,
and k=0.1374.
Thus, becomes
Taking log on both sides, we get