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3 years ago

Please will give brainliest!!!!!!!!!!!!!!!!!!!!

Mathematics

2 answers:

slava [35]3 years ago

7 0

Answer:

3.5.

Step-by-step explanation:

This is given by the slope of the line

= rise/run: - consider the given point:

= 3.5/1.

inessss [21]3 years ago

5 0

Answer:

I would say 0 but i wouldnt trust me im so srry Im trying to answer as many as I can if its wrong, report me im sorry

Step-by-step explanation:

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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

Please someone help!!!!

ira [324]

Answer:

165.8 ft (nearest tenth)

Step-by-step explanation:

We can use the tan trig ratio to calculate the height of the tower.

$\sf tan(\theta)=\dfrac{O}{A}$

where:

$\theta$ = the angle
O = the side opposite the angle
A = the side adjacent the angle

From inspection of the diagram:

$\theta$ = 37°

O = height of tower (let's call this h)
A = 220 ft

Substituting these values into the trig tan ratio:

$\sf \implies tan(37)=\dfrac{h}{220}$

Multiply both sides by 220:

$\sf \implies 220tan(37)=h$

$\sf \implies h=220tan(37)$

$\sf \implies h=165.781891$

Therefore, the height of the tower is 165.8 ft (nearest tenth)

6 0

2 years ago

At school, the maximum number of students that can be in a classroom is 25. If there are 20 students signed up for the chemistry

Fittoniya [83]

Answer:

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

The sum of 3 numbers is 131. the second of three numbers is seven more than twice the first. the third number is 12 less than th

arsen [322]

A+b+c = 131

b = 7 + 2a and c = a - 12
so a + 7+2a + a-12 = 131
then 4a -5 = 131
then 4a = 136
and a = 34....so b= 75 and c = 22....check 34+75+22=131√

6 0

3 years ago

44. Line A passes through points (5, 2) and (13, 6). Line B is parallel to Line A. Line C is perpendicular to Line B. What is th

Alja [10]

<span>Line A passes through points (5, 2) and (13, 6). Line B is parallel to Line A. Line C is perpendicular to Line B. What is the slope of Line C?
6-2 4
Line A and B both have the slope m = -------- = ------ = 1/2.
13-5 8

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4 0

3 years ago