2 years ago

D = 7 mm Calculate the radius of the circle.

Mathematics

1 answer:

Vikentia [17]2 years ago

5 0

Answer:

r= d/2

7/2

3.5

3.5 is the answer

Step-by-step explanation:

You might be interested in

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

2 years ago

Find y, at and tu I need help please help

lesantik [10]

Answer:

there is no picture... but i will try my best to help you if you post picture in another question

8 0

2 years ago

Read 2 more answers

BRAINLIEST AND STARS

IrinaK [193]

Answer:

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers

Find the slope of (-2,1),(-2,2)

Natalija [7]

Answer:

there is no slope its undefined

Step-by-step explanation:

4 0

2 years ago

Original price: $0.75<br> Discount:?<br> Sale price: $0.15

Masteriza [31]

Answer:

80% off

Step-by-step explanation:

(0.15 - 0.75)/0.75 = -0.8 = -80%

3 0

1 year ago