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
sweet [91]
3 years ago
15

How would you solve this type of problem?

Mathematics
1 answer:
taurus [48]3 years ago
3 0

Answer:

M=-\frac{d^2F}{kn}

Please look at what I assumed your equation was:  F=-\frac{kMn}{d^2}.

Step-by-step explanation:

I'm going to pretend that says:

F=-\frac{kMn}{d^2}.

Please correct me if I'm wrong.

We want to solve for M.

The very first thing I'm going to do is multiply both sides by d^2.

d^2F=-kMn

Now I'm going to divide both sides by -kn:

\frac{d^2F}{-kn}=\frac{-kMn}{-kn}

Simplifying:

\frac{d^2F}{-kn}=M

Sometimes people don't like the negative on bottom; just move it to the center:

-\frac{d^2F}{kn}=M

M=-\frac{d^2F}{kn}

You might be interested in
What is the opposite of the opposite of any integer?​
Pani-rosa [81]
<h2>The opposite of an opposite of a integer is the original integer.</h2>
8 0
2 years ago
Read 2 more answers
In a sample of 70 stores of a certain​ company, 62 violated a scanner accuracy standard. It has been demonstrated that the condi
uysha [10]

Answer:

We need at least 243 stores.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}.

The margin of error of the interval is:

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

For this problem, we have that:

n = 70, p = \frac{62}{70} = 0.886

95% confidence level

So \alpha = 0.05, z is the value of Z that has a pvalue of 1 - \frac{0.05}{2} = 0.975, so Z = 1.96.

Determine the number of stores that must be sampled in order to estimate the true proportion to within 0.04 with 95​% confidence using the​ large-sample method.

We need at least n stores.

n is found when M = 0.04. So

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

0.04 = 1.96\sqrt{\frac{0.886*0.114}}{n}}

0.04\sqrt{n} = 1.96\sqrt{0.886*0.114}

\sqrt{n} = \frac{1.96\sqrt{0.886*0.114}}{0.04}

(\sqrt{n})^{2} = (\frac{1.96\sqrt{0.886*0.114}}{0.04})^{2}

n = 242.5

Rounding up

We need at least 243 stores.

5 0
3 years ago
-x-2y-4z=-6<br> X-5y-2z=-2<br> 2x-3y+2z=2
Svetlanka [38]

Answer:

\sqrt{2} or (1/2)

Step-by-step explanation:

7 0
4 years ago
2/3 + 1/5x = 5/6 what is x
tamaranim1 [39]

Answer:

x = 5/6

Step-by-step explanation:

Solve for  x  by simplifying both sides of the equation, then isolating the variable.

6 0
3 years ago
Read 2 more answers
Find the value of x.<br> 48°<br> (7x + 13)<br> A. 7<br> B. 3<br> C. 11<br> о<br> D. 5
Agata [3.3K]

Answer:

D

Step-by-step explanation:

The given angles are vertically opposite and congruent , then

7x + 13 = 48 ( subtract 13 from both sides )

7x = 35 ( divide both sides by 7 )

x = 5 → D

7 0
3 years ago
Other questions:
  • Can you teach me how to do these?? plzaa
    12·2 answers
  • a circus charges $2.50 for kids tickets and $6 for adult tickets last week and twice as many kids attended the circus than adult
    13·1 answer
  • What is (6x-5) + (8x-50)
    11·2 answers
  • Is 8 a solution to the equation below? Yes or No?<br><br><br> 3(x - 2) + 4 = 22
    9·1 answer
  • 1. What are the next two terms of the following sequence?
    11·2 answers
  • Write the exponent for the expression. <br> 1/8 x 1/8
    6·1 answer
  • Find the measure of ZC. Write your answer as a decimal.
    12·1 answer
  • Ralph’s shirt company sells t-shirts for $7.50 each with a flat rate of $10 for shipping. Frank’s t-shirt company sells t-shirts
    6·1 answer
  • Quadrilateral BCDE is inscribed in circle A. EBC and BCD measure
    15·1 answer
  • Can someone please help me solve this. So confusing
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!