Answer:
1.02272727... mi per hr
Step-by-step explanation:
Answer:
¼ box
Step-by-step explanation:
Ezra sold ⅓ box of tangerines.
Anthony sold ¾ as many as Ezra = ¾ × ⅓ box
Cancel the 3s = ¼ × ¹/₁ box
Multiply numerators and denominators = ¼ box
Anthony sold ¼ box of tangerines.
It's hard to type and hard to read the "inverse tangent" function, as you've seen (above).
So, use "arctan x" instead.
Then the problem becomes: "differentiate cos (arctan x)."
You must apply first the rule for differentiating the cosine function, and next apply the rule for differentiating the arctan function:
(d/dx) cos (arctan x) = - sin (arctan x) * [1/(1+x^2)]
Answer:
x=68
Step-by-step explanation:
We begin by setting up as a proportion. 99.2 and 112 ft are across from each other so we can put those as our numerators. Additionally 62 and (x+2) ft are across from each other so we can put those as denominators. Now we can set up our proportion and begin to cross multiply:
99.2/62 = 112/(x+2) is our equation. It might help you see it clearly to write it out as fractions. From here, we cross multiply.
When we do that, we get x=68
