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
Pavlova-9 [17]
3 years ago
15

Help please i need it bad

Mathematics
1 answer:
evablogger [386]3 years ago
5 0

Answer:

-13, -3

15, 2.6

Step-by-step explanation:

x, y are the numbers

x = 5y + 2

x×y = 39

(5y + 2)×y = 39

5y² + 2y - 39 = 0

the solution of a quadratic equation :

y = (-b ± sqrt(b² - 4ac))/2a

a = 5

b = 2

c = -39

y = (-2 ± sqrt(2² - 4×5×-39))/2×5 =

= (-2 ± sqrt(4 + 780))/10 =

= (-2 ± sqrt(784))/10 = (-2 ± 28)/10

y1 = (-2 + 28)/10 = 26/10 = 2.6

y2 = (-2 - 28)/10 = -30/10 = -3

x1 = 5×2.6 + 2 = 13 + 2 = 15

x2 = 5×-3 + 2 = -15 + 2 = -13

You might be interested in
What is the factored form of x2 - 4x - 5?
Kazeer [188]

Answer:

Option D, (x - 5)(x + 1)

Step-by-step explanation:

<u>Step 1:  Factor </u>

x^2 - 4x - 5

x^2 - 5x + x - 5

(x - 5)(x + 1)

Answer:  Option D, (x - 5)(x + 1)

6 0
3 years ago
Read 2 more answers
HELP ME PLEASE IM BEGGING
agasfer [191]
95 is the area
Hope this helps :p
8 0
3 years ago
Read 2 more answers
A curve passes through the point (0,7) and has the property that the slope of the curve at every point P is five times the y-coo
iren [92.7K]

Answer:

y(x) = 7e^(5x)

Step-by-step explanation:

The question says that the slope of the curve at every point P is five times the y-coordinate of P. This means that

dy/dx = 5y

Refer to solutions of differential equations, dy/dt = ky, being in the form of y(t) = y(0) e^(kt)

Using the above stated law now, we can relate to our equation, saying that

y(x) = y(0) e^(5x)

The point given from the question is, (0, 7). This also means that y(0) = 7. So finally, we can have

y(x) = 7e^(5x)

And that is our needed equation of the curve

8 0
3 years ago
Write the equation in point slope form of the line that passes through the given point with the given slope (4,-11);m=3/4
Triss [41]

Answer:

okay i hope process is thiss

4 0
3 years ago
Urgently needed<br> see image
Lorico [155]

y2-y1 =M(x2-x1)

Ok Sir, you gave points : (2,1) and (3,4)

4-1/3-2 = 3

Ok we know our slope is 3, now pick any of the two points, and make an equation for this line, so lets go ahead and pick #1, (2,1)

Formula is same as before

y-1=3x-6

y=3x-5

I think its correct, pick as brainless sir, thanks.

7 0
3 years ago
Other questions:
  • Look at the following set of data.
    8·2 answers
  • -3x − 4 = -2(x + 2) − x
    12·2 answers
  • Below is the number of games each quarterback in the Northwest division has played this season.
    10·1 answer
  • Please help! im stuck on this question
    6·1 answer
  • PLEASE ANSWER THIS. I WILL MAKE HIM/HER A BRAINLIST!!!!
    5·2 answers
  • el crecimiento de las raíces se considera negativo respecto al nivel del suelo y el de los troncos se considera positivo con res
    6·1 answer
  • This object is made with five identical cubes. Each cube is 4 centimeters long. What is the surface area of the object in square
    8·1 answer
  • PLease help me with this math qestion
    10·1 answer
  • 16 - 2 to the 3rd power over 16
    5·2 answers
  • Homework 7.5 solving radical equations <br><br> 6=(2x+34)^1/2
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!