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3 years ago

Can someone tell me the answer step by step about the surface area please please really I need help

Mathematics

1 answer:

andreev551 [17]3 years ago

8 0

Surface are has a formula which is
SA=L*w+W*h+L*h

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Solve for r. s=2πrh

Butoxors [25]

Answer:

s/2πh =r

Step-by-step explanation:

s=2πrh

Divide both sides by 2πh to isolate r

s/2πh =2πrh /2πh

s/2πh =r

8 0

3 years ago

Write a division story for 36/9

nalin [4]

Jerry had 36 goldfish and 9 friends he dived the gold fish evenly between his 9 friends

7 0

2 years ago

A bacteria colony increases in size at a rate of 4.0581e1.6t bacteria per hour. If the initial population is 36 bacteria, find t

Harrizon [31]

Answer:

1560

Step-by-step explanation:

The rate of Increase of the population (P) of the bacteria is given as:

$\frac{dP}{dt} =4.058e^{1.6t}$

$dP =4.058e^{1.6t}}dt\\Taking\: Integrals\\\int dP =4.058 \int e^{1.6t}dt\\P(t)=\frac{4.058}{1.6} (e^{1.6t} +K)\\P(t)=2.53625 (e^{1.6t} +K)$

Where k is a constant of Integration.

At t=0, P(t)=36

$36=2.53625 (e^{1.6*0} +K)\\36=2.53625 (e^{0} +K)\\36=2.53625 (1 +K)\\36=2.53625 +2.53625K\\K=13.19$

Therefore:

$P(t)=2.53625 (e^{1.6t} +13.19)\\At \: t=4\\P(4)=2.53625 (e^{1.6*4} +13.19)\\=1559.88\\P(4)=1560$

3 0

3 years ago

(2.1 x 104) + (3.5 x 106)

igor_vitrenko [27]

Answer:

the answer is 589.4

Step-by-step explanation:

In doing this equation you do the order of operations:

(2.1 x 104)= 218.4

(3.5 x 106)= 371

you then add the answers together to get:

218.4 + 371 = 589.4

8 0

2 years ago

PLEASE I NEED HELP QUICKLY!!! Find the solution for the given system of equations in the form (x,y).

goblinko [34]

Answer:

(4, - 4)

Step-by-step explanation:

Given system:

-x + y = 8
7x + 3y = - 16

Multiply the first equation by 7 and add up the equations:

-7x + 7y + 7x + 3y = 7*8 - 16
10y = 40
y = 4

Find y:

-x + 4 = 8
-x = 4
x = - 4

3 0

2 years ago

Read 2 more answers