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3 years ago

JLYK , I also need the math

Mathematics

1 answer:

Yanka [14]3 years ago

7 0

7424 is the answer okay?

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The volume of a sphere is 267.95 m2. To the nearest meter, what is the radius of the sphere? Use

Novosadov [1.4K]

Answer:

Step-by-step explanation:

v=4/3 pi r^3
substitute 267.95=4/3×3.14×r^3
267.95= 12.56r^3/3
multiply by the reciprocal on both sides 64=r^3
find the cuberoot on both sides to remove the cube hence 4=r

3 0

3 years ago

In the year 2005, there were 100 rabbits in a particular region. Since then, the population has increased by 3.4% per year. Writ

Andreas93 [3]

Answer:

Step-by-step explanation:

Your answer

Ok, lets do it systematically.

2005– 100 rabbits

3.4 % per year increasement.

So every year it increase 0.034 *100 = 3.4 per year

Total 2025-2005= 20 years

So expression is : 0.034*100*year(20)

Answer is : 3.4*20 = 68. So, in 2025, total rabbits will be 168

Mark it as Brainlist answer. Follow me.

3 0

3 years ago

What is the work and awnser to 4732 dived by 364

Fiesta28 [93]

The answer is 13. The work is below

5 0

3 years ago

the dimensions of a rectanguler flower bed on a sketch are 4 by 6 cm. in real life the shorter side of the flower bed is 5m. fin

ANTONII [103]

Answer:

7.5m

Step-by-step explanation:

3 0

3 years ago

If y = 3x^3 - 2x and dx/dt equals 3, find dy/dt when x = -2. Give only the numerical answer. For example, if dy, dt = 4, type on

Nadya [2.5K]

Answer:

$\frac{dy}{dt} = 102$

Step-by-step explanation:

step(i)

Given function y = 3 x³ - 2 x ... (i)

Differentiating equation (i) with respective to 'x'

$\frac{dy}{dx} = 3 (3 x^{2} ) - 2(1)$

Given x = -2

$(\frac{dy}{dx} ) x_{=-2} = 3 (3 (-2)^{2} ) - 2(1)$

$(\frac{dy}{dx} ) x_{=-2} = 36 -2 =34$

Step(ii):-

we know that

$\frac{dy}{dx} = \frac{\frac{dy}{dt} }{\frac{dx}{dt} }$

Given $\frac{dx}{dt} = 3 and \frac{dy}{dx} = 34$

$\frac{dy}{dx} = \frac{\frac{dy}{dt} }{\frac{dx}{dt} }$

substitute values $\frac{dx}{dt} = 3 and \frac{dy}{dx} = 34$

⇒ $34 = \frac{\frac{dy}{dt} }{3 }$

cross multiplication , we get

$\frac{dy}{dt} = 34( 3 ) = 102$

Final answer:-

$\frac{dy}{dt} = 34( 3 ) = 102$

8 0

3 years ago