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
anzhelika [568]
3 years ago
14

How many solutions are there to the equation n^2-13n=-40

Mathematics
2 answers:
Marizza181 [45]3 years ago
8 0
It has 2 real solutions which are 5 and 8
Nitella [24]3 years ago
4 0

Answer:

n = 5

n = 8

Step-by-step explanation:

n^2 - 13n = -40

Equate everything to zero

n^2 - 13n + 40 = 0

Factorise

(n - 5)(n - 8) = 0

Either

n - 5 = 0

Add 5 to both sides

n - 5 + 5 = 0 + 5

n = 5

Or

n - 8 = 0

Add 8 to both sides

n - 8 + 8 = 0 + 8

n = 8

n = 5 or

n = 8

It has two real solutions

You might be interested in
HELP NEEDED ASAP<br> image below
xxTIMURxx [149]

The amount of pounds of vegetable needed in fractions to make the stew exactly 10 pounds is 3 3  / 8 pounds

<h3>How to solve fractions?</h3>

The amount of pounds of vegetable needed to make the stew exactly 10 pounds can be calculated as follows:

potatoes weight = 2 7 / 8 pounds = 23 / 8 pounds

green beans weight = 1 1 / 4 = 5 / 4 pounds

pepper weight = 2 1 / 2 = 5 / 2 pounds

Therefore,

weight needed = 10 - 23 / 8 - 5 / 4 - 5 / 2

weight needed = 80 - 23 - 10 - 20 / 8

weight needed = 80 - 53 / 8

weight needed = 27 / 8

weight needed in fractions to make the stew exactly 10 pounds = 3 3  / 8 pounds

learn more on fractions here: brainly.com/question/27894307

#SPJ1

8 0
1 year ago
Give the value of x .<br><br> A. 60 degrees<br> B. 180 degrees<br> C. 120 degrees<br> D. 45 degrees
Harrizon [31]

Answer:

x=120°

Step-by-step explanation:

sum of all angles in a triangle is equal to 180

let the unknown angle be

\alpha

60 + 60 +  \alpha  = 180 \\  \alpha  = 180 - 60 - 60 \\  \alpha  = 60 \\

\alpha  + x = 180 \\ x = 180 -  \alpha  \\ x = 180 - 60 \\ x = 120

5 0
2 years ago
Please help me I appreciate
alex41 [277]
Think your answer would be C or D.
 it's your choice to decide between those two now.
8 0
3 years ago
SUPER URGENT: Complete the general form of the equation of a sinusoidal function having an amplitude of 6, a period of 2pi/3, an
mel-nik [20]

Answer:

y = 6·sin(3·(x - 1)) + c

Step-by-step explanation:

The general form of an equation for a sinusoidal function is presented ad follows;

y = a·sin(b·(x - h) + c

Where;

a = The amplitude of the equation

T = The period = 2·π/b

h = The phase shift

c = The vertical shift

From the question, we have;

a = 6,

2·π/3 = 2·π/b

∴ b = 3

h = 1

We get;

y = 6·sin(3·(x - 1)) + c.

4 0
2 years ago
Which of the following steps is needed to inscribe a circle in a triangle?
xxTIMURxx [149]

Construct two angle bisectors of the triangle

Answer:

Option (D) is correct

<u>Step-by-step explanation:</u>

We have to contruct two angle bisectors of the triangle.

various steps to inscribe the circle in a triangle are

  1. First draw a triangle
  2. Draw angle bisector of one angle
  3. Draw angle bisector of another angle
  4. Extent these angle bisectors, where they meet that point will be called the incenter
  5. From incenter draw prependicular to any side of the triangle
  6. The length from the point where the prependicular touches the side of triangle to the point of incenter will be radius.
  7. Use this radius and draw the incircle.
6 0
2 years ago
Read 2 more answers
Other questions:
  • Need help on 7 simplest form
    6·2 answers
  • Write the fraction 28/21 in its simplest
    14·1 answer
  • -5,3,-2,1,-1,0 what is next number
    10·1 answer
  • 50 for the correct answer
    11·2 answers
  • In a mixed economy, the government is most likely to control the factors of production in which industry?
    7·2 answers
  • What are the coordinates of point B?
    5·1 answer
  • 12percent of what number is 45
    11·2 answers
  • NUMBER 2!! Helppppp ASAP plssss
    12·2 answers
  • C+2=5<br> PLEASE HELP I NEED HELP RIGHT NOW WITH THIS
    15·2 answers
  • If x=8 and y=−2, evaluate the following expression: 3x−y2
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!