2 years ago

Can someone help me with my algebra 2 assignment.

Mathematics

1 answer:

gulaghasi [49]2 years ago

5 0

What’s the assignment

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Suppose r(t)=costi+sintj+3tk represents the position of a particle on a helix, where z is the height of the particle above the g

Ilia_Sergeevich [38]

a. The $\vec k$ component tells you the particle's height:

$3t=16\implies t=\dfrac{16}3$

b. The particle's velocity is obtained by differentiating its position function:

$\vec v(t)=\dfrac{\mathrm d\vec r(t)}{\mathrm dt}=-\sin t\,\vec\imath+\cos t\,\vec\jmath+3\,\vec k$

so that its velocity at time $t=\frac{16}3$ is

$\vec v\left(\dfrac{16}3\right)=-\sin\dfrac{16}3\,\vec\imath+\cos\dfrac{16}3\,\vec\jmath+3\,\vec k$

c. The tangent to $\vec r(t)$ at $t=\frac{16}3$ is

$\vec T(t)=\vec r\left(\dfrac{16}3\right)+\vec v\left(\dfrac{16}3\right)t$

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2 years ago

A spinner is divided into 10 equal parts and numbered from 1 through 10. What is the probability of spinning a number less than

konstantin123 [22]

Answer:

7/10 * 1/2 = 7/20

Step-by-step explanation:

$\frac{7}{10} * \frac{5}{10} \\\frac{7}{10} * \frac{1}{2} \\\frac{7}{20}$

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2 years ago

What is the sum of <br> 4 1/2 + 1 3/5 in simplest form ?

olga2289 [7]

Answer:

Step-by-step explanation:

Convert the mixed numbers to improper fractions, then find the LCD and combine.

Exact Form:

61 / 10

Decimal Form:

6.1

Mixed Number Form:

6 1/10

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2 years ago

GIVING OUT BRAINLIEST ANSWERR HELP ME QUICK PLLSSSSS ITS ALMOST DUE HELPP !!!

ELEN [110]

Answer:

90°

Step-by-step explanation:

Thales Theorem

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2 years ago

What is the value of the expression 24 + 32? Numerical Answers Expected! Answer for Blank 1:

AysviL [449]

Answer:

14!

Step-by-step explanation:

The actual question is 2^4 + 3^2, so 2+2+2+2=8 and 3+3=6. So, 8+6= 14

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3 years ago