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2 years ago

!!!URGENT!!! ANSWER QUICK I WILL GIVE BAINLIEST TO RIGHT ANSWER

Mathematics

1 answer:

solmaris [256]2 years ago

7 0

Answer:

25/9 = 2 7/9 = 2.7777777778

Step-by-step explanation:

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Can somebody help me on this problem please!!

harkovskaia [24]

It is Rong the answer is 2

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3 years ago

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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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3 years ago

Evaluate the expression for x=6<br> 4×+6

alexira [117]

Answer:

Step-by-step explanation:

x=6

4 by 6 =24

24 + 6 =30

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3 years ago

Why do we use variables in math?

Phoenix [80]

Answer:

We use it to substitute an unknown number. We have a variable for a number we don’t know and as we solve the problem we can find the answer for the variable or unknown number.

Step-by-step explanation:

I hope it helps! Have a great day!
Anygays-

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1 year ago

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I keep getting confused on this one

il63 [147K]

Answer:

he made the mistake on step one, he didn't distribute correctly

Step-by-step explanation:

-5(x-1) = -5x +5

not -5x - 1

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2 years ago

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