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Gre4nikov [31]
3 years ago
9

Find the radius of a circle with the given circumference. 15 ft. r =

Mathematics
1 answer:
Mazyrski [523]3 years ago
6 0
7.5 pi ft
Hope this helps! :)

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The equation t^3=a^2 shows the relationship between a planet’s orbital period, T, and the planet’s mean distance from the sun, A
ankoles [38]

Answer:

     2√2

Step-by-step explanation:

We can find the relationship of interest by solving the given equation for A, the mean distance.

<h3>Solve for A</h3>

  T^3=A^2\\\\A=\sqrt{T^3}=T\sqrt{T}\qquad\text{take the square root}

<h3>Substitute values</h3>

The mean distance of planet X is found in terms of its period to be ...

  D_x=T_x\sqrt{T_x}

The mean distance of planet Y can be found using the given relation ...

  T_y=2T_x\\\\D_y=T_y\sqrt{T_y}=2T_x\sqrt{2T_x}=(2\sqrt{2})T_x\sqrt{T_x}\\\\D_y=2\sqrt{2}\cdot D_x

The mean distance of planet Y is increased from that of planet X by the factor ...

  2√2

8 0
2 years ago
What are the names of three planes that contain point B? a planes ABD, EFG, and BDH b planes ABD, AEF, and DHF c planes CDH, ABF
Radda [10]

Answer

Sol: The correct answer is b. three planes that contain point B are ABD, AEF and DHF.

8 0
4 years ago
I need Help!!!!!!!!!​
nalin [4]

Answer:

okay i will answer but i dont see the question

Step-by-step explanation:

8 0
3 years ago
Karl invests $35,000 for 8 years in an account paying 7% compounded daily. Find
ivolga24 [154]

Answer:

principal (p)=$35000

time(t)=8years

rate ( r)=7%

Step-by-step explanation:

  • compounded amount(c.a)=p((1+r/100)^t )=$35000((1+7/100)^8)=$60136.5
  • compound interest gain=$60136.5-$35000=$25136.5
  • Karl gain interest in 1 year=$35000((1+7/100)-1)=$2450
  • gain % in 1 year=$2450/$25136.5×100%=9.74%
7 0
3 years ago
Los angeles is 1,744 miles from chicago; chicago is 714 miles from new york; and new york is 2,451 miles from los angeles. The t
klemol [59]

Answer:

170°

Step-by-step explanation:

Let a be the distance from Los Angeles to Chicago = 1744 miles, b be the distance from Chicago to New York = 714 miles and c be the distance from New York to Los Angeles = 2451 miles.

A is the angle opposite to side a, B is the angle opposite to side b and C is the angle opposite to side c.

Therefore the angle at Chicago is  C.

From cosine rule:

c² = a² + b² - 2ab × cos (C)

2ab × cos (C) = a² + b² - c²

cos (C) = (a² + b² - c²) / 2ab

Substituting:

cos (C) = (1744² + 714² - 2451²) / 2×1744×741

cos (C) = -0.986

C = cos⁻¹ (- 0.986) = 170°

3 0
3 years ago
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