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
aleksklad [387]
2 years ago
8

Given that

="c=\frac{2d+1}{3d-1}" align="absmiddle" class="latex-formula">,
1. calculate the value of c when d = \frac{1}{4}
2. express d in terms of c
Mathematics
1 answer:
nata0808 [166]2 years ago
7 0

Answer:

C = -6

Step-by-step explanation:

C = [2×1/4 + 1] ÷ [3×1/4 -1 ]

C = 3/2 ÷ -1/4

C = 3/2 × -4 = -6

C = 2d + 1 / 3d - 1

So, d = ( C + 1 ) / ( 3C - 2 )

You might be interested in
3. Find the height of a cylinder of volume 200 cm3 and radius 4 cm.
Mrrafil [7]

Answer:

h≈3.98cm this is the answer please mark me as a brainlist

7 0
2 years ago
Read 2 more answers
According to a recent​ survey, the population distribution of number of years of education for​ self-employed individuals in a c
creativ13 [48]

Answer:

a) X: number of years of education

b) Sample mean = 13.5, Sample standard deviation = 0.4

c) Sample mean = 13.5, Sample standard deviation = 0.2

d) Decrease the sample standard deviation

Step-by-step explanation:

We are given the following in the question:

Mean, μ = 13.5 years

Standard deviation,σ = 2.8 years

a) random variable X

X: number of years of education

Central limit theorem:

If large random samples are drawn from population with mean \mu and standard deviation \sigma, then the distribution of sample mean will be normally distributed with mean \mu and standard deviation \frac{\sigma}{\sqrt{n}}

b) mean and the standard for a random sample of size 49

\mu_{\bar{x}} = \mu = 13.5\\\\\sigma_{\bar{x}} = \dfrac{\sigma}{\sqrt{n}} = \dfrac{2.8}{\sqrt{49}} = 0.4

c) mean and the standard for a random sample of size 196

\mu_{\bar{x}} = \mu = 13.5\\\\\sigma_{\bar{x}} = \dfrac{\sigma}{\sqrt{n}} = \dfrac{2.8}{\sqrt{196}} = 0.2

d) Effect of increasing n

As the sample size increases, the standard error that is the sample standard deviation decreases. Thus, quadrupling sample size will half the standard deviation.

7 0
3 years ago
This table shows information about the number of
tatiyna

Answer:

Mean number of holidays taken =26.6

Step-by-step explanation:

To find the mean,

We use Σfx/Σf

Σfx =150+234+189+84+0+60

=717

Σf= 6+9+7+3+0+2

=27

Σfx/Σf= 717/27

26.6

6 0
3 years ago
A rectangle is 51.6 cm tall and 45.6 cm wide. If it is reduced to a width of 3.8 cm, then how tall will it be?​
MA_775_DIABLO [31]

Answer:

jjdttfyuy

Step-by-step explanation:

6 0
3 years ago
I really need some help on this question
Leya [2.2K]

Answer:

What is the car's rate in kilometers per minute?

0.9\frac{km}{min}

How many kilometers will the car travel in 5 minutes?

4.5\ km

Step-by-step explanation:

If we know:

\frac{54\ km}{1\ hour}

And there are 60 minutes in an hour:

\frac{1\ hour}{60\ minutes}

We can do:

\frac{54\ km}{1\ hour} * \frac{1\ hour}{60\ minutes} = \frac{54\ km}{60\ minutes} = 0.9 \frac{km}{min}

From here, we figure out the distance from minutes:

0.9\frac{km}{min} * 5 = 4.5\ km

3 0
2 years ago
Other questions:
  • Which answer is equal to the quotient in the expression below?<br><br> 6x^3 + 7x^2 - 1/2x + 1
    10·2 answers
  • The sum of x and y is greater than 0. When y is subtracted from x, the difference is less than or equal to 0. Which system of in
    6·2 answers
  • Sin 31 / 2 cos 59<br>evatuate with out using table​
    7·1 answer
  • Solve -4.8=d-3.9<br><br>Enter only the value of the variable
    5·2 answers
  • For each store, what is the ratio of the number of cans to the price?
    11·1 answer
  • Write each number as a fraction or Mixed number.<br> (Please help! I'm trying to promote!)
    9·1 answer
  • 1,000 divided by 3.85 with only remainders
    14·2 answers
  • XY = 3cm, XŻY = 30° and YZ = x, Is it<br>possible to solve for x using the theorem of Pythagoras? ​
    6·1 answer
  • The price of an item has dropped to $34 today. Yesterday it was $40. Find the percentage decrease.
    9·1 answer
  • In her math class, Elena has been learning about how to use the identity property of multiplication with fractions. She is still
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!