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andrew-mc [135]
3 years ago
9

Use the arc length formula and the given information to find θ. s = 4 m, r = 13 m; θ = ?

Mathematics
2 answers:
solong [7]3 years ago
7 0
C=2πr and the circumference is measured at 360°

So if we were to set up a proportion we could say:

s/(2πr)=α/360

α=180s/(πr)

We are given that s=4m and r=13m so:

α=180(4)/(13π)

α=720/(13π) m  which is approximately:

α≈17.63°

Which is why radians are often used, because in radians...

α=[720/(13π)](π/180)

α=4/13 rads

Or the arc length in radians is simply expressed as:

s=rα

α=s/r  (which is much neater :P) then it is plain to see that:

α=4/13  rads


Airida [17]3 years ago
5 0

Answer:

best guess is it's 4/13 rad

Step-by-step explanation:

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Answer:those are your classes and the last one is the classes you completed i think im not really sure tho but yeah, umm byeee

Step-by-step explanation:

3 0
3 years ago
A retailer ordered a combination of 50 black and white sweatshirts. Each white sweatshirt cost him $10 and
Brut [27]

The number of white  sweatshirts is 28

Step-by-step explanation:

Let ordered black shirts be represented by b

Let ordered white shirts be represented by w

So total sweatshirts will be represented by the equation

b+w=50

The total cost of the ordered sweatshirts will be represented by

10b + 12 w= $556

For simultaneous equations as;

b+w=50

10b+12w=556

solving the equations using substitution method where b=50-w

10(50-w)+12w=556

500-10w+12w=556

-10w+12w=556-500

2w=56

w=56/2= 28

b=50-w=50-28=24

Number of white  sweatshirts  is 28

Learn More

Simultaneous equation :brainly.com/question/12919422

Keyword : cost

#LearnwithBrainly

4 0
3 years ago
The average mass of a giraffe is approximately 1 × 10^3 kilograms. The average mass of a blue whale is approximately 2 × 10^6 ki
Jlenok [28]
Giraffe = 1,000 kg
Whale = 2,000,000 kg

Whale has 2,000 times the mass. 
7 0
3 years ago
The jar's inner dimensions of the jar are approximately a cylinder with a height of 18
mars1129 [50]

v = \pi \times  {r}^{2}  \times h

v = \pi \times 49 \times 18

v = 2770.88

3 0
3 years ago
When the biggest degree of your polynomial is 3 your polynomials name is?
melisa1 [442]

Answer:cubic polynomial

Step-by-step explanation:

When the biggest degree of your polynomial is 3,your polynomials name is cubic polynomial

7 0
3 years ago
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