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snow_lady [41]
3 years ago
7

What is the next term in the sequence 0, 10, 20, ... ? Explain the sequence.

Mathematics
2 answers:
miss Akunina [59]3 years ago
6 0

Answer:

30,40,50,60

Step-by-step explanation: This is an arithmetic sequance luv!

Akimi4 [234]3 years ago
3 0

Answer:

30

this sequence term is counting by 10's

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Answer:

-0.69 feet per second

Step-by-step explanation:

We have dx/dt = 2 ft/sec, and we want to determine dy/dt.

x and y are related by the Pythagorean Theorem.

x²+y²=16²

Differentiate both sides of this equation with respect to t to get

2x\frac{dx}{dt}+2y\frac{dy}{dt} =0

2y\frac{dy}{dt} =-2x\frac{dx}{dt}

Divide both sides by 2y

\frac{dy}{dt} =-\frac{x}{y}\frac{dx}{dt}

When x = 5 ft, we have

x²+y²=16²

5²+y²=256

y²=256-25=231

therefore

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The top of the ladder is sliding down (because of the negative sign in the result) at a rate of -0.69 feet per second.

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3 years ago
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A circle with radius 10 has sector with a central angle of 2/5 pi radians.
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Michelle is 7 years older than her sister Joan, and Joan is 3 years younger than their brother Ryan. If the sum of their ages is
Zielflug [23.3K]

Answer:

(C) 18

Step-by-step explanation:

We can create a systems of equations. Assuming m is Michelle's age, j is Joan's age, and r is Ryan's age, the equations are:

m = j + 7

j = r-3

m+j+r = 64

We can use substitution, since we know the "values" of m and j.

(j+7)+(r-3)+r = 64\\(j+7)+(2r-3)=64\\2r + j + 4 = 64\\2r + j = 60\\\\

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So we know that Joan is 18 years old.

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3 years ago
Find mDF<br> Please help!!
Softa [21]

9514 1404 393

Answer:

  72°

Step-by-step explanation:

The external angle E is half the difference of the intercepted arcs.

  44° = (CD -DF)/2

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