MATHEMATICS COLLEGE

Gregory estimated the product of two decimals to be 24.Which could be the two decimals?
2.07(10.3)
4.02(6.8)
2.74(7.1)
5.9(3.92)

Answers

Answer 1
Answer:

Answer:

it is the last one 5.9(3.92)

Step-by-step explanation:

i just took the exact same Assignment and got the question right soo....
Answer 2
Answer:

D.) 5.9(3.92)

Explanation:        (→ = estimated)

5.9 → 6

3.92 → 4

6 x 4 = 24

thus, D, 5.9(3.92), is your answer.

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Graph a line with a slope of 2/5 that contains the point (-2,4)

Answers

Answer:

  see below

Step-by-step explanation:

It can be convenient to graph the given point, then identify additional points on the line based on the slope. The slope of 2/5 tells you the line will have a rise of 2 units for each run of 5 units.

Which is a graph for the inequality m greater than or equal to 2?

Answers

Answer:

The third one is the answer. if you ever need help hit me up.

Step-by-step explanation:

A rumor spreads through a small town. Let y(t) be the fraction of the population that has heard the rumor at time t and assume that the rate at which the rumor spreads is proportional to the product of the fraction y of the population that has heard the rumor and the fraction 1−y that has not yet heard the rumor. a. Write the differential equation satisfied by y in terms of proportionality k.
b. Find k (in units of day−1, assuming that 10% of the population knows the rumor at time t=0 and 40% knows it at time t=2 days.
c. Using the assumptions in part (b), determine when 75% of the population will know the rumor.
d. Plot the direction field for the differential equation and draw the curve that fits the solution y(0)=0.1 and y(0)=0.5.

Answers

Answer:

The answer is shown below

Step-by-step explanation:

Let y(t) be the fraction of the population that has heard the rumor at time t and assume that the rate at which the rumor spreads is proportional to the product of the fraction y of the population that has heard the rumor and the fraction 1−y that has not yet heard the rumor.

a)

(dy)/(dt)\ \alpha\ y(1-y)

(dy)/(dt)=ky(1-y)

where k is the constant of proportionality, dy/dt =  rate at which the rumor spreads

b)

(dy)/(dt)=ky(1-y)\n(dy)/(y(1-y))=kdt\n\int\limits {(dy)/(y(1-y))} \, =\int\limit {kdt}\n\int\limits {(dy)/(y)} +\int\limits {(dy)/(1-y)} =\int\limit {kdt}\n\nln(y)-ln(1-y)=kt+c\nln((y)/(1-y)) =kt+c\ntaking \ exponential \ of\ both \ sides\n(y)/(1-y) =e^(kt+c)\n(y)/(1-y) =e^(kt)e^c\nlet\ A=e^c\n(y)/(1-y) =Ae^(kt)\ny=(1-y)Ae^(kt)\ny=(Ae^(kt))/(1+Ae^(kt)) \nat \ t=0,y=10\%\n0.1=(Ae^(k*0))/(1+Ae^(k*0)) \n0.1=(A)/(1+A) \nA=(1)/(9) \n

y=((1)/(9) e^(kt))/(1+(1)/(9) e^(kt))\ny=(1)/(1+9e^(-kt))

At t = 2, y = 40% = 0.4

c) At y = 75% = 0.75

y=(1)/(1+9e^(-0.8959t))\n0.75=(1)/(1+9e^(-0.8959t))\nt=3.68\ days

A 10-ounce box of
cereal is $4.50. What
is the cost in dollars
of each ounce?

Answers

Answer:

45 cents for each ounce.

Step-by-step explanation:

Take away the decimal, divide 450 by 10, and you get 45.
10x = 4.5
divided 10 to both sides leaves u with 0.45.
Answer is $0.45!

Which scatterplot shows the weakest positive linear association?On a graph, points are grouped closely together and increase.
On a graph, points are grouped closely together to form a line and increase.
On a graph, points are grouped closely together and decrease.
On a graph, points are grouped closely together to form a line and decrease.

Answers

The scatter plot which shows the weakestpositive linear association is; On a graph, points are grouped closely together and increase.

Which scatterplot shows the weakest positive linear association?

It follows from the task content that the scatterplot which shows the weakest positive linear association be identified.

On this note, for an association to be positive, the graph must increase. However, the scenario described is a weak linear association, hence, the points don't necessarily form a line accurately, they just have to be closely together and increase.

Read more on scatterplot;

brainly.com/question/6592115

#SPJ2

Answer:

c

Step-by-step explanation:

i got it right on the test

HELP ASAP ROCKY!!! will get branliest.​

Answers

Answer :

  • One solution

Step by Step explanation :

Take the given equation :

⇒2 + x = 6

Now, start solving it

⇒x = 6 - 2

⇒x = 4

Hence, Solution of given equation is 4. And only one solution exists.

Answer:

one

Step-by-step explanation:

the answer is 4 and there is only one solution there

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