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
uranmaximum [27]
3 years ago
7

One of the solutions to x^2 - 2x - 15 = 0 is x = -3. What is the other solution

Mathematics
2 answers:
Alex787 [66]3 years ago
8 0

Answer:

x=5

Step-by-step explanation:

You have to factor the equation and the way you do this is to find two numbers that multiply to get -15 and add to get -2 and those numbers are 3 and -5 so the factors are (x+3) and (x-5)

You set them equal to 0 and solve for x

x+3=0           x=-3

x-5=0            x=5

austin2 years ago
0 0

2(x−3) = 2x + 15
how many soultions

You might be interested in
Julia went to the grocery store and purchased cans of soup and frozen dinners. Eack
BigorU [14]

A system of equations that could be used to  determine the number of cans of soup purchased and the number of frozen dinners  purchased is:

350x + 500y = 4800

y = 2x

<h3>Definition of variables </h3>

x = number of cans of soup purchased

y = number of frozen dinners purchased.

<h3>Simultaneous equations </h3>

The system of equations are known as simultaneous equations. Simultaneous equations are group of equations that have to be solved together in order to determine the required values.

<h3>Methods used to solve simultaneous equations </h3>
  1. Elimination method
  2. Graph method
  3. Substitution method

To learn more about simultaneous equations, please check: brainly.com/question/25875552

4 0
2 years ago
Advantage of this app?
Morgarella [4.7K]
You get an answer to your question really quick,
...like now!
3 0
3 years ago
Read 2 more answers
A tank is full of water. Find the work W required to pump the water out of the spout. (Use 9.8 for g and 3.14 for π. If you ente
OLEGan [10]
To answer the question above, we will have to use some calculus approach to this problem.


<span>volume of sphere = (4/3)(pi)(radius^3) = (4/3)(pi)(9^3) = 972pi </span>
<span>mass = (density)(volume) = (972pi)(1,000) = 972,000pi </span>
<span>force = (mass)(acceleration or gravity here) = (972,000pi)(9.8) = 9,525,600pi </span>
<span>work = (force)(distance) = (9,525,600pi)(4.5) = 42,865,200pi J 
</span>
I hope my answer helped you with your problem
6 0
3 years ago
What happens to the mode of the data set shown below if the number 8 is added to the data set?
Dmitrij [34]

Answer:

c

Step-by-step explanation:

right now 15 is the mode because there are 3 of them

if we made it so that there was another 8 there would also be 3 of them

this would mean that there are two modes

6 0
2 years ago
Find the value of 7 + 32 (-5 + 1) ÷ 2.
vampirchik [111]
The answer is -57
7+32(-4)/2
7+-128/2
7+-64
-57
8 0
3 years ago
Read 2 more answers
Other questions:
  • Awaste management company is designing a rectangular construction dumpster that will be twice as long as it is wide and must hol
    9·1 answer
  • Surface area of a prism
    9·1 answer
  • What is greater -2/3 or -0.8​
    9·2 answers
  • 0.16 fractions and decimal
    9·2 answers
  • Check all that apply
    15·2 answers
  • Pleasee help me!!!<br> I need to finish this by today
    13·2 answers
  • Find the value of x.
    14·2 answers
  • A balloon is floating above a lake and a sunken canoe is below the surface of the lake. The balloon's vertical position is 12 me
    10·1 answer
  • 11.
    8·1 answer
  • What is an equation of the line that passes through the points (-4,-7) and (2,8)
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!