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Fittoniya [83]
3 years ago
11

Solve for the indicated variable. include all of your work in your answer. submit your solution. c = 2r; for r

Mathematics
1 answer:
Aliun [14]3 years ago
7 0
I believe yo meant c=2pir but ok

c=2r
divide both sides by 2
c/2=r

if you forgot tthe pi
c=2pir
divide by 2pi
c/(2pi)=r
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The distance, d, in kilometres, travelled by a plane after t hours can be represented by d(t)=-4t³=40t²+500t, where t is greater
Ede4ka [16]
D(t) = -4t^3 + 40t^2 + 500t = 4088
4t^3 - 40t^2 - 500t + 4088 = 0
t = 7

Therefore, the plane has flown 4088 km 7 hours after it took off.

8 0
3 years ago
What is the approximate curcumfrance of the circle shown below?​
Vikki [24]

Answer:

C.

Step-by-step explanation:

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Circumference=3.14*19.5

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3 years ago
Evaluate the expression 8x for x=2
kodGreya [7K]

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8x2

5 0
3 years ago
Read 2 more answers
Solve the reciprocal<br><img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B1%7D%7Bx%7D%20" id="TexFormula1" title=" \frac{1}{x} " al
swat32

Answer:

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Step-by-step explanation:

Hope this helps! :)

7 0
2 years ago
Se tiene la sucesión 3, 8, 13, 18, 23 … ¿Cuáles son los siguientes dos términos y cuál es la regla general?
V125BC [204]

Respuesta:

28; 33

A (n) = 5n - 2

Explicación paso a paso:

A partir de los datos dados, 3, 8, 13, 18, 23…, podemos ver que cada valor sucesivo de la serie aumenta en 5;

Por lo tanto, los siguientes dos términos de la serie deberían ser:

23 + 5 = 28

28 + 5 = 33

La serie es una progresión aritmética:

Recuerde la fórmula general:

A (norte) = a + (norte - 1) d

Donde, a = Primer término = 3; d = diferencia común = 5

n = enésimo término

A (n) = 3 + (n-1) 5

A (n) = 3 + 5n - 5

A (n) = 5n - 2

6 0
3 years ago
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