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
ella [17]
3 years ago
15

How to solve n-5*2/3=3/4

Mathematics
1 answer:
Scorpion4ik [409]3 years ago
5 0

n-5\cdot\dfrac{2}{3}=\dfrac{3}{4}\\\\n-\dfrac{10}{3}=\dfrac{3}{4}\ \ \ \ |\cdot12\\\\12n-12\cdot\dfrac{10}{3}=12\cdot\dfrac{3}{4}\\\\12n-4\cdot10=3\cdot3\\\\12n-40=9\ \ \ \ |+40\\\\12n=49\ \ \ \ \ |:12\\\\n=\dfrac{49}{12}

You might be interested in
A horticulturist working for a large plant nursery is conducting experiments on the growth rate of a new shrub. Based on previou
valkas [14]

Answer:

t=\frac{1.8-2}{\frac{0.5}{\sqrt{48}}}=-2.771    

The degrees of freedom are given by:

df=n-1=48-1=47  

And the p value would be:

p_v =P(t_{(47)}    

Since the p value is lower than the significance level we have enough evidence to conclude that the true mean for this case for the growth rate is less than 2cm per week

Step-by-step explanation:

Information given

\bar X=1.8 represent the sample mean for the growth

s=0.5 represent the sample standard deviation    

n=48 sample size    

\mu_o =2 represent the value that we want to compare

\alpha=0.01 represent the significance level

t would represent the statistic    

p_v represent the p value

System of hypothesis

We need to conduct a hypothesis in order to check if the true mean is less than 2cm per week, the system of hypothesis are :    

Null hypothesis:\mu \geq 2    

Alternative hypothesis:\mu < 2    

Since we don't know the population deviation the statistic is given by:

t=\frac{\bar X-\mu_o}{\frac{s}{\sqrt{n}}} (1)    

Replacing the info given we got:

t=\frac{1.8-2}{\frac{0.5}{\sqrt{48}}}=-2.771    

The degrees of freedom are given by:

df=n-1=48-1=47  

And the p value would be:

p_v =P(t_{(47)}    

Since the p value is lower than the significance level we have enough evidence to conclude that the true mean for this case for the growth rate is less than 2cm per week

6 0
3 years ago
Rewrite the function f of x equals 7 times one half to the 3 times x power using the properties of exponents.
Artist 52 [7]

Answer:

f of x equals 7 times one eighth to the x power

Step-by-step explanation:

Given phrase,

function f of x equals 7 times one half to the 3 times x power,

\implies f(x) = 7(\frac{1}{2})^{3x}

By the power to power property of exponent,

That is,

(a^m)^n=a^{m.n}

f(x) = 7((\frac{1}{2})^3)^x

f(x) = 7(\frac{1}{8})^x

= f of x equals 7 times one eighth to the x power

8 0
3 years ago
Please Help!!! Braniest will be given
Lady bird [3.3K]

To solve this word problem, we will use the Pythagorean Theorem.

Pythagorean Theorem: a^2 + b^2 = c^2

Our side lengths are 10 and 24ft.

So, we can plug them in for a and b.

10^2 + 24^2 = c^2

100 + 576 = 676

Then, we need to find the square root of 676.

sqrt676) = 26

So, the missing length or the hypotenuse is 26 feet.

Therefore, we require 26 feet of string to measure the length of the hypotenuse in which the room is split in half.

4 0
3 years ago
13. Find AC. PLEASEE I NEED HELP!!!!!
sertanlavr [38]
AC should equal to 14.
6 0
3 years ago
Read 2 more answers
Factor the expression completely 8x^2-18 Please help
nirvana33 [79]

Answer:

2 (2x - 3) x (2x + 3)

4 0
3 years ago
Other questions:
  • In which of these examples, binomial distribution can be used? a) Finding the best month to launch a new product b) Accurately p
    15·1 answer
  • Help please !! Given the parent function f(x) = x², define the function g(x) that
    7·1 answer
  • Do the ratio 4/15 and 16/75 form a proportion
    8·1 answer
  • Sarah wants to print copies. the printing company charges $200 plus $2 per book. is sarah’s total cost a function of the number
    12·1 answer
  • PLease please help!!
    5·1 answer
  • I
    9·1 answer
  • A sample of a radioactive isotope had an initial mass of 700 mg in the year 1991 and decays exponentially over time. A measureme
    15·1 answer
  • 11. Mr. Dawley bought 2 Hydroflask water bottles at $2.49 each
    13·2 answers
  • Order the numbers from least to greatest 5/6, 17/20, 83%
    12·1 answer
  • What is the value of y¹ when y = 5 and x - 10?​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!