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Stolb23 [73]
2 years ago
13

Find the circumference of a circle with radius 8 inches

Mathematics
2 answers:
Alexxx [7]2 years ago
3 0
To find the circumference of a circle, use the equation c = 2*pi*r. if the radius is 8, your circumference is 50.27
elena55 [62]2 years ago
3 0

Answer:

50.27 inches

Step-by-step explanation:

equation for the circumference of a circle = 2πr

in this case, r (radius), is 8 inches

so, 2 x π x 8 = 50.27

<em>this is an approximate number</em>

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Michelle poured 7/8 cup of water from a pitcher into a glass.then she poured 2/8 cup . What is the change in the amount of water
Stels [109]
<span>the change in the amount of water in the pitcher is</span>5/8 cup
8 0
3 years ago
Please help!!! How many coefficients does this polynomial have in its complete form, including any missing terms?
frez [133]
-5x^3 + 2x^2 + 1

a coefficient is the number that is multiplied by the variable.For instance, the coefficient of 2x is 2....because 2 (the number) is multiplied by the variable x.

so in ur problem....there are 2 coefficients..-5 and 2.

** the number 1 is not a coefficient, it is a constant...a " loner " with no variables (letters) attached.

** and if u have just the letter...such as n, the coefficient to that is 1 but the one is just not written...it is actually 1n.

okay...I am gonna shut up now :) 
7 0
2 years ago
PLEASE HURRY!!
lapo4ka [179]
First statement is correct and the second is not correct
7 0
2 years ago
What is the exact circumference of the circle?
Nitella [24]
We know, Circumference = <span>π * Diameter
So, c = </span><span>π * 8
c = 8</span><span>π

In short, Your Answer would be Option C

Hope this helps!</span>
7 0
3 years ago
Read 2 more answers
(A journey by bus takes 45 minutes at 60 km per hour. How fast must a car go to do the same
Vlad [161]

Answer:

The car must drive at 108 km/h to cover the same journey.

Step-by-step explanation:

Given that:

Time taken by bus journey = 45 minutes = \frac{45}{60} = 0.75\ hour

Speed of bus = 60 km/h

Distance of the journey = Speed * Time

Distance of the journey = 60 * 0.75 = 45 km

The car needs to cover 45 km in 25 minutes.

25 minutes = \frac{25}{60}\ hour

Distance = Speed * Time

45 = \frac{25}{60}*Speed

Speed = 45*\frac{60}{25}

Speed = 108 km/h

Hence,

The car must drive at 108 km/h to cover the same journey.

7 0
2 years ago
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