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Readme [11.4K]
3 years ago
11

Nancy drove from New York to Boston, a distance of 1144.97 km. She drove with a friend for the first 711.5 km, and then by herse

lf for the remaining distance. How far did Nancy drive by herself? A. 433.47 km B. 333.47 km C. 1855.47 km D. 1856.47 km
PLEASE ANSWER
WILL GIVE BRAINLIEST!!!!!!!!!!!!!!!!!!
Mathematics
1 answer:
choli [55]3 years ago
7 0
Answer for this one would be option A
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Trigonometry would help with this question.

The area of a regular hexagon is ((3√3)s^2)/2 where s is the side.

Plugging in 2 gives us 6√3 or 10.39 feet.

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Answer:

\left\{\begin{array}{l}x=r\cos t\\ \\ y=r\sin t\\ \\z=at\end{array}\right.

Step-by-step explanation:

A <u>helix</u> is a curve for which the tangent makes a constant angle with a fixed line. The shortest path between two points on a cylinder (one not directly above the other) is a fractional turn of a helix, as can be seen by cutting the cylinder along one of its sides, flattening it out, and noting that a straight line connecting the points becomes helical upon re-wrapping (see attached diagram for helix).

The parametrization for the helix is

\left\{\begin{array}{l}x=r\cos t\\ \\ y=r\sin t\\ \\z=at\end{array}\right.,

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3 years ago
Four years after opening an account that paid simple interest of 4.25% annually, a depositor withdrew the $2,380 in interest ear
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Answer:

Step-by-step explanation:

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r is the interest rate in decimal form,

t is the time in years, and

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Filling in:

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That means that 14000 was initially invested. If the depositor withdrew the 2380, then

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3 years ago
Help anyone can help me do the question 4,I will mark brainlest.​
nasty-shy [4]

Answer:

Hello,

Step-by-step explanation:

A=(1,2)\\B=(0,-1)\\\overrightarrow{AB}=((0,-1)-(1,2)=(-1,-3)\ ||\overrightarrow{AB}||^2=1+9=10\\\overrightarrow{BC}=((3,-2)-(0,-1)=(3,-1)\ ||\overrightarrow{BC}||^2=9+1=10\\\\Triangle\ is\ isosceles.\\\\\overrightarrow{AB}.\overrightarrow{BC}=(-1,-3)*\left[\begin{array}{c}3\\-1\end{array}\right] =-3+3=0\\\\Triangle \ is\ right.\\\\

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Answer:

A = bh thus:   A=671.34 mm²

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