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4 years ago

Order least to greatest 1 3/8 17/8 7/4

Mathematics

1 answer:

Burka [1]4 years ago

4 0

17/8, 1 3/8, 7/4. Hope it helped!

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Assume that the radius rr of a sphere is expanding at a rate of 19 in./min.19 in./min. The volume of a sphere is V=43πr3V=43πr3.

djverab [1.8K]

Answer:

$744876\pi in^3/min$ .

Step-by-step explanation:

We are given that

$\frac{dr}{dt}=19 in/min$

Volume of sphere= $\frac{4}{3}\pi r^3$

$r=4 at t=0$

$dr=19 dt$

Integrating on both sides then we get

$r=19 t+C$

Substitute r=4 and t=0

$4=C$

$r=19t+4$

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

$\frac{dV}{dt}=4\pi (19t+4)^2(19)$

Substitute t=5

$\frac{dV}{dt}=4\pi (19(5)+4)^2(19)$

$\frac{dV}{dt}=4 \pi (99)^2 (19)=744876\pi in^3/min$

Hence, the volume is changing at the rate of $744876\pi in^3/min$ .

7 0

3 years ago

Find the equation (in terms of x) of the line through the points (-3,1) and (5,3)

maxonik [38]

Answer:

(y-3)=(1/4)(x-5) or (y-1)=(1/4)(x+3)

Step-by-step explanation:

point slope formula: (y-y1)=m(x-x1)

slope formula: (y2-y1)/(x2-x1)

slope = m

4 0

4 years ago

In a recent golf match, Desmond’s score was 3 less than George’s score. Their combined scores totaled 187. Let d represent Desmo

slavikrds [6]

It is C. George - Desmond is Desmond's score. And after you get their scores, you add them up to find the total.

4 0

3 years ago

Find the area of the circle.

juin [17]

Answer:

See Explanation Below

Step-by-step explanation:

Your question isn't clear; However, I'll solve in two ways

1. Diameter = 14 cm

2. Radius = 14 cm

When Diameter = 14 cm

Given

$Area = \pi r^2$

$Diameter = 14cm$

Required

Calculate the area of the circle

First, the radius has to be solved;

$Radius = \frac{1}{2} Diameter$

$Radius = \frac{1}{2} * 14cm$

$Radius = 7cm$

Using the given formula;

The area is as follows

$Area = \pi r^2$

$Area = 3.14 * 7^2$

$Area = 3.14 * 49$

$Area = 153.86cm^2$

When Radius = 14 cm

Given

$Area = \pi r^2$

$Radius = 14cm$

Required

Calculate the area of the circle

Using the given formula;

The area is as follows

$Area = \pi r^2$

$Area = 3.14 * 14^2$

$Area = 3.14 * 196$

$Area = 615.44cm^2$

7 0

3 years ago

I really need help on this geometry question, please, and thank you.

photoshop1234 [79]

Answer:

250

Step-by-step explanation:

you have to use the fact that the big triangle and the small triangle are similar and write the proportions

$\frac{125}{10} =\frac{AB}{10}$ we took half of the side because of ΔABD and ΔBD..

AB= (125*10)/10=125

is AB =125 then AC is duble AC= 2*125=250

7 0

3 years ago