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Anestetic [448]
2 years ago
6

Ayaan travels 90 miles at an average speed of 60 mph.

Mathematics
1 answer:
lawyer [7]2 years ago
8 0

Step-by-step explanation:

  • Speed = distance / time

Thereafter,

Distance :-

  • 90 miles + 40 miles = 130 miles

Time :-

  • 90 / 60 + 59 = 60.5 mph

Average Speed :-

  • 130 / 60.5 = 2.148

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G(-4, -8) and H(-15, -3). What is the slope of GH?
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Answer:

G(x1,y1)= (-4,-8)

H(x2,y2)=(-15,-3)

Slope = (y2-y1)/(x2-x1)

=(-3-(-8))/ (-15-(-4))

= (-3+8)/(-15+4)

=5/-11

3 0
3 years ago
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marysya [2.9K]
A and b are the correct answers
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3 years ago
At noon, ship A is 170 km west of ship B. Ship A is sailing east at 35 km/h and ship B is sailing north at 20 km/h. How fast is
garik1379 [7]
Check the picture below.

now, keep in mind that ship B is going at 20kph, thus from noon to 4pm, is 4 hours, so it has travelled by then 20 * 4 or 80 kilometers, thus b = 80.

whilst the ship B is moving north, the distance "a" is not really changing, and thus is a constant, that matters because the derivative of a constant is 0.

\bf c^2=a^2+b^2\implies \stackrel{chain~rule}{2c\cfrac{dc}{dt}}=0+2b\cfrac{db}{dt}\implies \cfrac{dc}{dt}=\cfrac{b\frac{db}{dt}}{c}
\\\\\\
\begin{cases}
\frac{db}{dt}=20\\
c=10\sqrt{353}\\
b=80
\end{cases}\implies \cfrac{dc}{dt}=\cfrac{80\cdot 20}{10\sqrt{353}}\implies \cfrac{dc}{dt}=\cfrac{160}{\sqrt{353}}
\\\\\\
\textit{and rationalizing the denominator}\implies \cfrac{160\sqrt{353}}{353}

8 0
3 years ago
What are the values of u and v
lubasha [3.4K]

Answer:

u=72

v=61

Step-by-step explanation:

for U:

54+54=108

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3 years ago
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Answer:

It should be 87.92

Step-by-step explanation:

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3 years ago
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