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
tamaranim1 [39]
3 years ago
8

Do these two equations represent the same line 10x+4y=-8 5x+2y=10?

Mathematics
1 answer:
AlladinOne [14]3 years ago
8 0

Answer:

no

Step-by-step explanation:

no two different lines

You might be interested in
The vertex of a parabola is (-1.5, -12.5), and its y-intercept is (0, -8).
Alecsey [184]
The general equation of a parabola is y=ax^2+bx+c  At the y-intercept, x=0 and y= -8:  -8 = a(0)^2 + b(0) + c.  Thus, c = -8.  So, our equation becomes

y = ax^2 + bx - 8.  Next, substitute -1.5 for x and -12.5 for y.  Then,
-12.5 = a(-1.5)^2 + b(-1.5) - 8.  This simplifies to -4.5 = a(2.25) - 1.5b.

Next, take advantage of the info that the vertex is at x= -1.5.
The formula for the vertex is x=-b/(2a).    Letting this formula = -1.5, 

-1.5 = -b/(2a).  We can then solve for b:  1.5 = b/(2a), or 3a = b.

Now go back to the equation we derived previously:  -4.5 = a(2.25) - 1.5b.
Substitute 3a for b:

-4.5 = a(2.25) - 1.5(3a).    Then -4.5 = -2.25a, and a = 4.5/2.25 = 2.

Last, substitute a = 2 into   3a=b to determine the value of b.

b=3(2) = 6.

Therefore, your equation is y=2x^2 + 6x - 8.

Check this result.  Substitute the coordinates of the vertex (-1.5,-12.5) into this equation.  Is the equation still true?  If so, your equation correctly represents this parabola.
4 0
3 years ago
Read 2 more answers
Multiply. Write in simplest form.<br><br> 1. 5 1/3x1 1/4<br> 2.1 2/5x3 1/6<br> 3.7 1/8x2 5/6
Ulleksa [173]
1. 6 2/3
2. 4 13/30
3. 323/16
6 0
3 years ago
Read 2 more answers
How do you determine where f(x)=cos^(-1)(lnx) is continuous?
olga nikolaevna [1]
\ln x is continuous over its domain, all real x>0.

Meanwhile, \cos^{-1}y is defined for real -1\le y\le1.

If y=\ln x, then we have -1\le \ln x\le1\implies \dfrac1e\le x\le e as the domain of \cos^{-1}(\ln x).

We know that if f and g are continuous functions, then so is the composite function f\circ g.

Both \cos^{-1}y and \ln x are continuous on their domains (excluding the endpoints in the case of \cos^{-1}y), which means \cos^{-1}(\ln x) is continuous over \dfrac1e.
7 0
3 years ago
Factorise fully 2a^2b + 6ab^2​
Inga [223]

Answer:

2ab(a + 3b)

Step-by-step explanation:

2a²b + 6ab²​

Factor out 2ab

2ab(a + 3b)

4 0
3 years ago
Read 2 more answers
38. Joey paid for 5 hours of batting lessons in March.
Elodia [21]

Answer:

159.75

Step-by-step explanation:

23.50×5=117.5

117.5+42.25=159.75

3 0
3 years ago
Other questions:
  • I am really stuck please help meth
    9·1 answer
  • PLEASE HELP!! <br><br> Evaluate f(-7).<br><br> f(x) = 3x2
    15·1 answer
  • Please tell me the final answer and process
    10·1 answer
  • Sorry i suck with fractions but how many 1/8 are in 3/4 ???
    7·2 answers
  • Tony works 22 hours per week. his take home pay is $15.80 per hour. if tony is able to save all of his earnings, how long will i
    14·2 answers
  • Which number completes the Pythagorean Triple of 14, 48, x?
    8·1 answer
  • What is 15 out of 50 as a percentage​
    15·1 answer
  • What percent of 145 is 82​
    14·1 answer
  • Another question about math
    7·1 answer
  • Brendan created a connect-the-dots puzzle in the shape of a square for his little brother. He plotted dotson a coordinate plane
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!