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
VMariaS [17]
2 years ago
7

X^2+12x=15 Solve using Quadratic formula it can’t be a decimal

Mathematics
2 answers:
zmey [24]2 years ago
6 0

Answer:

x =  − 6 ± √ 51

Step-by-step explanation:

The quadratic formula is x= -b ± √b^2-4ac / 2a. A is 1, b is 12, and c would be -15 if we subtract the 15 to the other side. Plugging the numbers in would be x= -12 ± √12^2-4(1)(-15) / 2(1) . x= -12± √144+60/ 2 --> x=-12± √204/2 --->               x= -6± √51

Juli2301 [7.4K]2 years ago
4 0

Answer:

X=1, -13

Step-by-step explanation:

You might be interested in
You earn $30 for washing 5 cars.how much do you want for washing 3cars
Blizzard [7]

Answer:

$18

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
On a coordinate plane, a line is drawn from point K to point J. Point K is at (160, 120) and point J is at (negative 40, 80). Wh
emmainna [20.7K]

The x- and y- coordinates of point P on the directed line segment from K to J such that P is Three-fifths the length of the line segment from K to J is  (85, 105).

Given

On a coordinate plane, a line is drawn from point K to point J. Point K is at (160, 120) and point J is at (negative 40, 80).

<h3>Coordinates</h3>

The coordinates point any point can be found by using the following formula.

\rm X=\dfrac{m}{m+n}(x_2-x_1)+x_1\\\\ Y=\dfrac{m}{m+n}(y_2-y_1)+y_1

The x- and y- coordinates of point P on the directed line segment from K to J such that P is Three-fifths the length of the line segment from K to J is;

\rm X=\dfrac{m}{m+n}(x_2-x_1)+x_1\\\\ X = \dfrac{3}{3+5}(-40-160)+160\\\\ X = 3 \times (-25)+160\\\\\X = -75+160\\\\ X = 85\\\\\ Y=\dfrac{m}{m+n}(y_2-y_1)+y_1\\\\ Y=\dfrac{3}{3+5}(80-120)+120\\\\Y =- 3\times 5 +`120\\\\Y=-15+120\\\\Y=105

Hence, the x- and y- coordinates of point P on the directed line segment from K to J such that P is Three-fifths the length of the line segment from K to J is  (85, 105).

To know more about co-ordinates click the link given below.

brainly.com/question/13847533

5 0
3 years ago
A circle with a diameter of 10 inches has a circumference of a square, what is the length of each side of the square? ​
Veronika [31]

The circumference is πd, and the diameter is 10, so the circumference is 10π. All sides of a square are equal, so the length of each side is 10π/4, which is 2.5π.

The length of each side of the square is 2.5π  

7 0
4 years ago
​ <br><br><br><br>​ <br><br> , find f^{-1}(x)f <br><br>−1<br><br> (x)
Stolb23 [73]

Answer:

Multiply the numerator by the reciprocal of the denominator. Multiply x x by 1 1 . Since g(f(x))=x g ( f ( x ) ) = x , f−1(x)=1x f - 1 ( x ) = 1 x is the inverse of f(x)=1x f ( x ) = 1 x .

Step-by-step explanation:

:)

5 0
2 years ago
If a number is decreased by 36 and the result is 76 less than twice the number, what is the number?
olga_2 [115]
A - 36 = B 
B = 76 - A * 2.
the number is 40.
A = 40 
:D

5 0
3 years ago
Other questions:
  • The radius of a circle is 5 1 2 cm. what is the circle's circumference in terms of p ?
    5·1 answer
  • Determine the value of y in the equation: -5y-9=-(y-1) (show all work)
    15·1 answer
  • PLS HELP!!!!! <br><br><br> What is the range of Variable B for the cluster?
    12·1 answer
  • Which is greater. 8.72 or 8.720
    14·2 answers
  • Select the correct answer.
    6·1 answer
  • 245% as a fraction in simplest form
    14·2 answers
  • What’s the difference of dependent variable and independent variable
    13·2 answers
  • The first week of January there are 49 dogs and 28 cats in the shelter. Throughout the month the ratio of dogs to cats remains t
    5·1 answer
  • Plz help !
    13·2 answers
  • What is 400X600+1200=
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!