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2 years ago

What is the radius of this circle !! Please answer

Mathematics

2 answers:

Free_Kalibri [48]2 years ago

7 0

Answer:

its half of 8 so 8/2=4

Step-by-step explanation:

katrin2010 [14]2 years ago

5 0

Answer:

4cm

Step-by-step explanation:

The diameter is double the radius of a circle.

Here, the diameter is 8cm so the radius will be half of it (8/2)=4.

Hope this helps you :)

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Calculate the gradient of BD

den301095 [7]

Step-by-step explanation:

part 1 : explaining how to get the coordinates of B

part 2 : the gradient of BD

7 0

2 years ago

suppose two different fractions with the same denominators are both less than 1 Can their sum equal 1? can their sum be greater

pochemuha

The sum could be greater than 1 but not equal to 1.

6 0

3 years ago

Can anyone plz solve this ?? -7 (1+3x) =4+5x

Aleonysh [2.5K]

Step-by-step explanation:

-7(1+3x) = 4 + 5x

-7 - 21x = 4 + 5x

(get all the variables on one side. Don't forget to change the signs)

-7-4 = 5x + 21x

-11 = 26x

(divide both sides by the coefficient [26])

26x/26= -11/26

x = -11/26

3 0

2 years ago

In rhombus ABCD, DB=16 and AC=12. What is the perimeter of rhombus ABCD?

riadik2000 [5.3K]

DB+ DC= 32
AC+ AC =24
32+24
56

4 0

3 years ago

A spherical balloon is being inflated at a rate of 3 cubic inches per second. Determine the change in the rate of the radius.How

Novay_Z [31]

Answer:

The rate rate of change of radius is $\frac{1}{48\pi}$ inches per second when the diameter is 12 inches.

The radius is changing more rapidly when the diameter is 12 inches.

Step-by-step explanation:

Consider the provided information.

A spherical balloon is being inflated at a rate of 3 cubic inches per second.

The volume of sphere is $V=\frac{4}{3}\pi r^3$

Differentiate the above formula with respect to time.

$\frac{dV}{dt}=4\pi r^2\frac{dr}{dt}$

Substitute the respective values in the above formula,

$3=4\pi 6^2\frac{dr}{dt}$

$\frac{1}{48\pi}=\frac{dr}{dt}$

The rate rate of change of radius is $\frac{1}{48\pi}$ inches per second when the diameter is 12 inches.

When d=16

$3=4\pi 8^2\frac{dr}{dt}$

$\frac{3}{256\pi}=\frac{dr}{dt}$

Thus, the radius is changing more rapidly when the diameter is 12 inches.

5 0

3 years ago