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solve for y. 2y=8+7x

2y=8+7x, divide both sides by 2

y=(8 + 7x)/2

about 9.86960440109

there really isn't a answer unless u figure out x

then n would have to be from the negatives to 4 because 4 multilyed by 12 is 48, and 5 times 12 is 60.

16 divided by 2[8-3(4-2)]+1

Simplify the following:
16/(2 (8-3 (4-2))+1)

4-2 = 2:
16/(2 (8-3×2)+1)

-3×2  =  -6:
16/(2 (8+-6)+1)

8-6 = 2:
16/(2×2+1)

2×2  =  4:
16/(4+1)

4+1 = 5:
Answer: | 
| 16/5

If you have a graph, slope is also defined as 'rise over run' or if you pick two points on a graph

(x1 , y1) and (x2 , y2 )   then slope will be   (y2-y1) / (x2-x1)  .

  I should add, this is if you have a graph of a line.

For INSTANTANEOUS slope guest 1 has it right  dy/dx is the slope....if you have the equation of the graph...it does not have to be a line...  (which is kinda like the change in y divided by the change in x.....rise over run)...

cause it is not

If you have a graph, slope is also defined as 'rise over run' or if you pick two points on a graph

(x1 , y1) and (x2 , y2 )   then slope will be   (y2-y1) / (x2-x1)  .

Solve for d:
5 (4 d+8) = 40

Divide both sides of 5 (4 d+8) = 40 by 5:
(5 (4 d+8))/5 = 40/5

5/5 = 1:
4 d+8 = 40/5

The gcd of 40 and 5 is 5, so 40/5 = (5×8)/(5×1) = 5/5×8 = 8:
Answer: | 
| 4 d+8 = 8

d=0

Solve for x:
0.0174444 x^2 = 170

0.0174444 x^2 = (157 x^2)/9000:
(157 x^2)/9000 = 170

Multiply both sides by 9000/157:
x^2 = 1530000/157

Take the square root of both sides:
Answer: | 
| x = 300 sqrt(17/157) or x = -300 sqrt(17/157)

A slope is generally  a "derivative" of a function.

Why don't you state Stephan' Law and give us the variables that you are given. Will see what we can do. What does Stepahn's Law say as a formula?. Can you copy it from your book?

Yes, that is TRUE!!. Because: 9/30=.3 X 100=30%

  x(7-x)>8

This is the expanded form:7x - x^2>8, and x=2, 3, 4, 5

This is the solution:1/2 (7-sqrt(17))<x<1/2 (7+sqrt(17))

no, I meant dwarf planet. That's exactly whats written on my assignment. to figure out the temperature, do i have to isolate t in the stefan law equation?

E.G. __+5=28 What are equations?How do you turn that into an equation?

x + 5=28. That is an EQUATION!!. What is the value of x?. In other words, what number can you replace x with to give you 28? The answer is=28 -5=23, because 23 + 5=28.

i cant find the answer sorry

First of all, I think you mean "dwarf star"? 1m=10^9 nanometers. You may have to convert nanometers into meters by dividing by 10^9. Be sure NOT to confuse T in Kelvins by nanometers. The latter generally refers to wavelengths. Make all your units consistent.

-27/20 (negative 27 over 20) or -1 7/20 (negative 1 and 7 over 20) 

It's with regards to a dwarf planet's temperature. 

the graph shows the spectrum of the dwarf planet, with the peak intensity hitting in between 10^2 and 10^3. 

I know that I have to use the Stefan-Boltzmann law:  σ T^4,  σ = 5.7 x 10^-8 watt/(m^2 x K^4), however T is in Kelvin and the values I'm given on the spectrum are in nm.

How would i figure out the temperature of this planet with the informatin I'm given? And how do i convert nm to K?

NO!!!!!!!!!. Arcsin is the same as "asin" or Inverse sine. Sinh, is something different.

Have you looked in your textbook? What is the relationship between temperature and spectrum graph? If you have the formula, units don't matter, because you can easily convert from one to another.

The answers are: A and C

what is 2(7a-b)=14a - 2b