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3 years ago

Find the circumference of the circle. Use pi = 3.14. Question 6 options: 3 m 18.84 m 6 m 28.26 m

2 answers:

8 0

Since you haven't provided the radius, I'll just use the symbol 'r' to refer to radius. You can substitute with the given radius in the equation.

Now, circumference of the circle is calculated using the following rule:
curcimference of circle = 2*pi*r
where:
r is the radius
pi is given as 3.14
Therefore:
circumference of circle = 2*3.14*r = 6.28 r units

ch4aika [34]3 years ago

4 0

There's not enough information. I need to know the Radius

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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

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

4 0

3 years ago

Riley's parents got a cell phone plan that has a $40 monthly fee for the first phone for each extra phone there is a $15 phone s

Kaylis [27]

The simplified version is 25e+40

6 0

3 years ago

uppose that 10% of the population is taking a certain drug, and 30% of them suffer from migraines as a side effect. Supposing th

blondinia [14]

Answer:LetAbe the event that the person is taking the drug. We are told thatP(A) = 0.05.LetBbe the event that the person has migraines. We are told thatP(B) = 0.1.Further, we are told thatP(B|A) = 0.3. Using the rules for conditional probability,P(A|B) =P(A∩B)P(B)=P(B|A)P(A)P(B)=0.3·0.050.1=0.15.The probability that a migraine sufferer takes the drug is 15%.

Step-by-step explanation:

4 0

4 years ago

Read 2 more answers

Plxzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz helpe me if you can

evablogger [386]

Answer:

not sure

Step-by-step explanation:

6-4 =2

2*9=18??

I'm not sure, since that was simple math, can you clarify by what you meant the difference of 6 and 4.

8 0

3 years ago

Question what is the unit rate for miles per gallon

finlep [7]

Answer:

41 miles per hour

Step-by-step explanation:

This is a fraction equal to

41 miles ÷ 1 gallon

We want a unit rate where

1 is in the denominator,

so we divide top and bottom by 1

41 miles ÷ 1

1 gallon ÷ 1

= 41 miles per gallon

I hope this works

8 0

3 years ago