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LuckyWell [14K]
2 years ago
13

The radius of a circular Frisbee is 9.8 centimeters. Using rounding to the nearest whole number, what is an estimate for the cir

cumference of this circle?
A. 50 cm B. 60 cm C. 65 cm D. 72 cm
Mathematics
1 answer:
Anni [7]2 years ago
6 0
The answer is B. 60 cm
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A circle is growing so that the radius is increasing at the rate of 2cm/min. How fast is the area of the circle changing at the
poizon [28]
The answer to this question is:

A circle is growing so that the radius is increasing at the rate of 2cm/min. How fast is the area of the circle changing at the instant the radius is 10cm? Include units in your answer.?
✔️I assume here the linear scale is changing at the rato of 5cm/min
✔️dR/dt=5(cm/min) (R - is the radius.... yrs, of the circle (not the side)
✔️The rate of area change would be d(pi*R^2)/dt=2pi*R*dR/dt. 
✔️At the instant when R=20cm,this rate would be, 
✔️2pi*20*5(cm^2/min)=200pi (cm^2/min)  or, almost, 628 (cm^2/min) 

Hoped This Helped, <span>Cello10
Your Welcome :) </span>
5 0
3 years ago
Read 2 more answers
Which statement is true about this argument?
wariber [46]

Answer:

The argument is true by the law of syllogism

Explanation:

Law of syllogism states that for a valid argument form which is a syllogism having a conditional statement for one or both of its premises.

Premises:

1. If p , then q

2. if q, then r

Conclusion: if p, then r.

Let p be the statement "two angles form a linear pair",

let q be the statement "they are supplementary"  and

let r be the statement "the sum of their measures is 180°"

If p, then q

if q,  then r

then by the Law of syllogism statement , conclusion if q then r is true,

i,e If two angles form a linear pair, then the sum of their measures is 180^{\circ}.




3 0
3 years ago
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Write the number that is five less than ten million.
andrey2020 [161]

Answer:

9,999,995

Step-by-step explanation:

8 0
3 years ago
I need help please! The answer choices are:
vagabundo [1.1K]

(4^9)^5 is equal to 4^45. You multiply 9 and 5 to get 45.


5 0
2 years ago
If the mountain at a convergent plate boundary is growing at a rate of 1.6 mm per year, how much higher will it be in 50 years ?
Mrrafil [7]
The mountain will be at 80mm long in 50 years because 50 times 1.6mm equals 80
5 0
2 years ago
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