All categories

4 years ago

P(t) = 21,000 (4/7)^t/3

Mathematics

1 answer:

Anika [276]4 years ago

8 0

Answer:

No solution exists!

Step-by-step explanation:

You might be interested in

the total surface area of a solid cylinder is 21cm if the curved surface area of the solid cylinder is two - third of its total

arsen [322]

Answer:

The radius of cylinder is 1.05 cm and

The height of cylinder is 2.11 cm

Step-by-step explanation:

Given as :

The total surface area of cylinder = 21 cm

The curved surface area of cylinder = $\frac{2}{3}$ of the total surface area

I.e The curved surface area of cylinder = $\frac{2}{3}$ × 21 = 14 cm

∵ The total surface area of cylinder = 2 $\pi$ r h + 2 $\pi$ r²

Where r is the radius and h is the height of cylinder

Or, 2 $\pi$ r h + 2 $\pi$ r² = 21 cm

Or, $(2\times \Pi \times r\times h) + (2\times \Pi\times r^{2} )$ = 21 cm ....a

Again ∵ The curved surface area of cylinder = 2 $\pi$ r h

Where r is the radius and h is the height of cylinder

Or, 2 $\pi$ r h = 14 cm . ...b

so . put the value of a into b

I.e 14 cm + $(2\times \Pi\times r^{2} )$ = 21 cm

Or, $(2\times \Pi\times r^{2} )$ = 21 cm - 14 cm

Or, $(2\times \Pi\times r^{2} )$ = 7

so , r² = $\frac{7}{2\pi }$

∴ r² = $\frac{49}{44}$

I.e r = $\sqrt{\frac{49}{44} }$

So, radius = $\frac{7}{\sqrt{44} }$ cm

or, r = 1.05 cm

Put the value of r in eq b

2 $\pi$ r h = 14 cm

Or, 2 $\pi$ × $\frac{7}{\sqrt{44} }$ × h = 14 cm

So, h = $\frac{\sqrt{44} }{\pi }$

Or, h = 2.11 cm

Hence The radius of cylinder is 1.05 cm and The height of cylinder is 2.11 cm Answer

8 0

4 years ago

5 and (2,6) Pls answer

Gekata [30.6K]

Answer:

Step-by-step explanation:

I do not understand what you mean

or maybe you mean .

5 * (2,6)

(10,30)

5 0

3 years ago

Help me with those screen

tresset_1 [31]

1. irrational
2. 5
3.16 and 25
4. between 3 and four

8 0

3 years ago

The exponent indicates how many times the

Lena [83]

Answer:

...number its multiplied by itself

Step-by-step explanation:

ex. 2^3 = 2x2x2 = 8

6 0

3 years ago

Add (-2x + 4) + (4x + 6) A) 2x + 10 B 6x + 10 C) 2x - 2 D) 6x-2

kolezko [41]

Answer:

A. 2x + 10

Step-by-step explanation:

5 0

3 years ago