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kvv77 [185]
2 years ago
14

I need help!!!! Evaluate 4/7 + 8/3 in fraction form

Mathematics
1 answer:
Reptile [31]2 years ago
8 0

Answer:

  • 3 5/21.
  • 68/21

Step-by-step explanation:

<u>Given equation:</u>

  • 4/7 + 8/3

<u>Solve:</u>

  • 4/7 + 8/3
  • = 12/21 + 56/21
  • = \frac{12 + 56}{21 + 0}
  • = 3 5/21.
  • = 68/21.
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Kinda putting this out here to everyone so you can learn. Don't just click on a person needing help then guess or just put gibbe
ElenaW [278]
Really true. just wanting points is not a reason to mess with someone else.
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
I'm not sure to use 6 or 10 for a side length​
dlinn [17]

Answer:

10

Step-by-step explanation:

6 is the width not the length

6 0
3 years ago
Is the given point interior , exterior, or on the circle k (x+2)2 + (y-3)2 =18 P (8,4)
Mnenie [13.5K]
One way would be to find the distance from the point to the center of the circle and compare it to the radius

for
(x-h)^2+(y-k)^2=r^2
the center is (h,k) and the radius is r

and the distance formula is
distance between (x_1,y_1) and (x_2,y_2) is
D=\sqrt{(x_1-x_2)^2+(y_1-y_2)^2}


r=radius
D=distance form (8,4) to center

if r>D, then (8,4) is inside the circle
if r=D, then (8,4) is on the circle
if r<D, then (8,4) is outside the circle


so
(x+2)^2+(y-3)^2=18
(x-(-2))^2+(y-3)^2=(\sqrt{18})^2
(x-(-2))^2+(y-3)^2=(3\sqrt{2})^2

the radius is 3\sqrt{2}
center is (-2,3)

find distance between (8,4) and (-2,3)

D=\sqrt{(8-(-2))^2+(4-3)^2}
D=\sqrt{(8+2)^2+(1)^2}
D=\sqrt{10^2+1}
D=\sqrt{100+1}
D=\sqrt{101}




r=3\sqrt{2}≈4.2
D=\sqrt{101}≈10.04

do r<D

(8,4) is outside the circle

6 0
3 years ago
How do you graph x = 1/4
Scorpion4ik [409]

Answer:

Yes

Step-by-step explanation:

Draw a vertical line on the x value of 1/4

It's just  a straight line upwards

7 0
2 years ago
Read 2 more answers
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