1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Alenkasestr [34]
3 years ago
13

HELPPP What is the value of d ? 84 80 100 50

Mathematics
2 answers:
agasfer [191]3 years ago
8 0

Answer:

Step-by-step explanation:

74 spongebob

Mashcka [7]3 years ago
5 0

Answer:

80

Step-by-step explanation:

jus took the test

You might be interested in
HELP ME PLS!! GET YOUR POINTS!!
andre [41]
The answer is b, c, and d
3 0
2 years ago
worker a earns $7.90 per widget produced, produces 14 widgets per day, and works 10 hours per day. Worker b earns $9.00 per widg
Anni [7]
What are the statements 
3 0
2 years ago
Noel has rowing lessons every 5 days and guitar lessons every 6 days. If he had both lessons on the last day of the previous mon
bixtya [17]

Answer:

Since every 30 days  he  wil have both lessons on the same day , and  he already  had both lessons on the last day of the previous month, that means that the day 30  the current month   he  wil have both lessons on the same day (It may be the last day if the month has 30 days or it may not be the last day if the month has 31 days)

Step-by-step explanation:

Lets find the least common factor of 5 and 6

Multiples of 5

5  10  15  20  35  30  35  40......

Multiples of 6

6  12  18  24  30 36  

LCF of 5 and 6 = 30

Every 30 days  he  wil have both lessons on the same day

3 0
3 years ago
Which of the following is not an exponential growth model?
Juli2301 [7.4K]

Answer:I’m not so sure but don’t guess and let someone smart in math help you

Step-by-step explanation:

3 0
3 years ago
Suppose a certain population satisfies the logistic equation given by dP
Ksenya-84 [330]

Answer:

The population when t = 3 is 10.

Step-by-step explanation:

Suppose a certain population satisfies the logistic equation given by

\frac{dP}{dt}=10P-P^2

with P(0)=1. We need to find the population when t=3.

Using variable separable method we get

\frac{dP}{10P-P^2}=dt

Integrate both sides.

\int \frac{dP}{10P-P^2}=\int dt             .... (1)

Using partial fraction

\frac{1}{P(10-P)}=\frac{A}{P}+\frac{B}{(10-P)}

A=\frac{1}{10},B=\frac{1}{10}

Using these values the equation (1) can be written as

\int (\frac{1}{10P}+\frac{1}{10(10-P)})dP=\int dt

\int \frac{dP}{10P}+\int \frac{dP}{10(10-P)}=\int dt

On simplification we get

\frac{1}{10}\ln P-\frac{1}{10}\ln (10-P)=t+C

\frac{1}{10}(\ln \frac{P}{10-P})=t+C

We have P(0)=1

Substitute t=0 and P=1 in above equation.

\frac{1}{10}(\ln \frac{1}{10-1})=0+C

\frac{1}{10}(\ln \frac{1}{9})=C

The required equation is

\frac{1}{10}(\ln \frac{P}{10-P})=t+\frac{1}{10}(\ln \frac{1}{9})

Multiply both sides by 10.

\ln \frac{P}{10-P}=10t+\ln \frac{1}{9}

e^{\ln \frac{P}{10-P}}=e^{10t+\ln \frac{1}{9}}

\frac{P}{10-P}=\frac{1}{9}e^{10t}

Reciprocal it

\dfrac{10-P}{P}=9e^{-10t}

P(t)=\dfrac{10}{1+9e^{-10t}}

The population when t = 3 is

P(3)=\dfrac{10}{1+9e^{-10\cdot 3}}

Using calculator,

P=9.999\approx 10

Therefore, the population when t = 3 is 10.

8 0
2 years ago
Other questions:
  • Your family drives 126 miles from key west to the florida main land. About 15% of this distance is spent on bridges. How many mi
    15·1 answer
  • Does anybody have an idea
    11·1 answer
  • Answer the linear inequality
    6·1 answer
  • Coras kitten weighs 1200 grams if he weighed 550 grams at the visit to the veteranarians office, what is thepecent increase in t
    12·1 answer
  • Is z = 23 a solution to 23/z =1
    9·1 answer
  • Consider this story problem: "Priscilla bought cheese that weighs ¾ pounds. If she divides it into portions that are each 1/8 po
    10·1 answer
  • PLEASE anser if you know the question ill give brainlyest !!!!!
    10·1 answer
  • There are 3 blue rings, 4 red rings, and 8 yellow rings write the ratio of red rings to all rings
    7·2 answers
  • Can someone help me with this please? (Look at the image)
    11·2 answers
  • A four-person committee is chosen from a group of eight boys and six girls.
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!