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
9966 [12]
3 years ago
14

Sorry but what is “ 6(-5n + 7) “ equal ?

Mathematics
2 answers:
Marina CMI [18]3 years ago
6 0

Answer:

-30n+42

Step-by-step explanation:

6(−5n+7)

=(6)(−5n+7)

=(6)(−5n)+(6)(7)

=−30n+42

JulijaS [17]3 years ago
5 0

Answer: − 30 n + 42

Step-by-step explanation:

You might be interested in
What is the answer to 2x to the power of 2 +x +1=0
KonstantinChe [14]

Answer:

x=-1

Step-by-step explanation:

x+1=0(squared).

x+1=0 (anything raise to the power 0 is 0

collect like terms =x=-1

therefore x=-1

4 0
3 years ago
Suppose you have $50, how much change would you receive if you bought a DVD that cost $27.99?
____ [38]

Answer:

$33.01

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
How to find median with even amount of numbers?
Paladinen [302]
Sort the numbers in ascending or descending order, then eliminate the greatest and least numbers until you're left with the middle two. The median is the average of the last two numbers.

For example, the median for the set \{2,10,-1,4\}=\{-1,2,4,10\} is 3 because the middle two numbers are 2 and 4, and their average is \dfrac{2+4}2=3.
8 0
3 years ago
You want to obtain a sample to estimate a population proportion. At this point in time, you have no reasonable preliminary estim
pogonyaev

Answer:

n=\frac{0.5(1-0.5)}{(\frac{0.025}{1.28})^2}=655.36  

And rounded up we have that n=656

Step-by-step explanation:

In order to find the critical value we need to take in count that we are finding the interval for a proportion, so on this case we need to use the z distribution. Since our interval is at 80% of confidence, our significance level would be given by \alpha=1-0.80=0.20 and \alpha/2 =0.10. And the critical value would be given by:

z_{\alpha/2}=\pm 1.28

Solution to the problem

The margin of error for the proportion interval is given by this formula:  

ME=z_{\alpha/2}\sqrt{\frac{\hat p (1-\hat p)}{n}}    (a)  

Since we don't have prior info for the proportion of interest we can use \hat p=0.5 as estimator. And on this case we have that ME =\pm 0.025 and we are interested in order to find the value of n, if we solve n from equation (a) we got:  

n=\frac{\hat p (1-\hat p)}{(\frac{ME}{z})^2}   (b)  

And replacing into equation (b) the values from part a we got:

n=\frac{0.5(1-0.5)}{(\frac{0.025}{1.28})^2}=655.36  

And rounded up we have that n=656

5 0
3 years ago
Which is the constant term in the equation given in standard from 5x+3y=15
Alisiya [41]

Answer:

15

Step-by-step explanation:

The constant is the term without the variable

5x+3y=15

15 is the constant

4 0
3 years ago
Other questions:
  • What is the Value of x? <br> 30 = x -17
    13·2 answers
  • Find the equation of the parabola with focus (2, 3) and directrix y = -1.<br> es
    10·2 answers
  • Kelly had $25 in her purse and Dante has d dollars in his wallet which algebraic expression represents the total amount that jel
    9·1 answer
  • Shinzou wo sasageyo
    5·2 answers
  • Please help me :)<br> i will give your answer a brainiest if it’s correct!
    15·1 answer
  • Nia's bag weighs 5-sixths of the maximum weight allowed for bags on an airplane. The maximum weight allowed is 45 pounds. What i
    9·1 answer
  • The base of a right rectangular pyramid has length 14 ​cm, width 12 ​cm, and height 13 cm. Describe a cross section that could b
    6·1 answer
  • Plzzzzz help i really need it guys thxxxxxxxx!
    5·1 answer
  • Which shows the domain and range of these functions? Domain: (Negative infinity, infinity) Range: (Negative infinity, infinity)
    11·1 answer
  • Find measure of Arc BC
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!