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Galina-37 [17]
3 years ago
12

Shelley's cup of tea cooled down 1/2 of a degree in 10 minutes. At what rate is her tea cooling down?

Mathematics
1 answer:
Vlada [557]3 years ago
3 0

Answer:

0.05 degrees a minute

Step-by-step explanation:

1/2 a degree divided by 10 is 0.05 degrees a minute

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Find x and y. please help ty!! :)​
Natali [406]

answer:

x=74 y=27

steps:

triangle in the middle is

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2 years ago
Julie and her brother go to Atlanta to ride the SkyView Ferris wheel. It measures 200 feet in diameter.
Law Incorporation [45]

Answer:

Question 1: A)we need to use the CIRCUMFERENCE.

B) Circumference of a Circle  = 2 π R

c)The distance traveled in 1 rotation  =  628 ft

2(a)AREA of a CIRCLE   = π  R²

(b)Area the wheel takes up is 31,400 sq ft

Step-by-step explanation:

Question 1:

Diameter  = 200 ft

Now,as Diameter = 2 x Radius

So, R  = D/2 =200/2 = 100 ft

A) Distance around the wheel = The length of the boundary of the wheel.

So, we need to use the CIRCUMFERENCE.

B) Circumference of a Circle  = 2 π R

Here R = Radius and use π =  3.14

C) The distance traveled in 1 rotation = 1 completer length of  boundary

Now, Circumference  = 2 π R = 2 x (3.14)  x (100 ft)  = 628 ft

Question 2:

A) Space the Ferris Wheel takes up   = Area of the wheel

AREA of a CIRCLE   = π  R²

B) AREA of a CIRCLE   = π  R²

=  (3.14) (100 ft ) (100 ft)  = 31,400 sq ft

So, the area the wheel takes us is 31,400 sq ft

3 0
3 years ago
Cost of a New Car From 1970 to 1990, the average cost of a new car, C
Lunna [17]

Answer:

In year 1986 the average  cost of car is  $12,000

Step-by-step explanation:

Cost function:

C = 30.5t² + 4192

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Year

Computation:

C = 30.5t² + 4192

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So,

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1986

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3 years ago
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