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
damaskus [11]
3 years ago
8

Using the quadratic formula to solve x2 = 5 – x, what are the values of x? StartFraction negative 1 plus-or-minus StartRoot 21 E

ndRoot Over 2 EndFraction StartFraction negative 1 plus-or-minus StartRoot 19 EndRoot i Over 2 EndFraction StartFraction 5 plus-or-minus StartRoot 21 EndRoot Over 2 EndFraction StartFraction 1 plus-or-minus StartRoot 19 EndRoot i Over 2 EndFraction
Mathematics
2 answers:
nikdorinn [45]3 years ago
4 0

Answer:

Add 4

subtract 24 from 5

2

5 = –6x2 + 24x

5 = –6(x2 – 4x)

(Add 4) inside the parentheses and (subtract 24 from 5).

–19 = –6(x – 2)2

StartFraction 19 Over 6 EndFraction = (x – 2)2

Plus or minus StartRoot StartFraction 19 Over 6 EndFraction EndRoot  = x – 2

The two solutions are (2)Plus or minus StartRoot StartFraction 19 Over 6 EndFraction EndRoot.

Snezhnost [94]3 years ago
3 0

Answer: StartFraction negative 1 plus-or-minus StartRoot 21 EndRoot Over 2

Step-by-step explanation:

The given quadratic equation is expressed as

x² = 5 - x

Rearranging the equation to take the standard form of ax² + bx + c, it becomes

x² + x - 5 = 0

The general formula for solving quadratic equations is expressed as

x = [- b ± √(b² - 4ac)]/2a

From the equation given,

a = 1

b = 1

c = - 5

Therefore,

x = [- 1 ± √(1² - 4 × 1 × - 5)]/2 × 1

x = [- 1 ± √(1 - - 20)]/2

x = [- 1 ± √21]/2

x = (- 1 + √21)/2 or x = (- 1 - √21)/2

You might be interested in
Need help have pictures I will mark you the brainiest
morpeh [17]

Answer: If m<aob the x=2

4 0
3 years ago
Find the value of x. PLS HELP ANSWER ASAP!
BARSIC [14]

Answer: x = 24º

Step-by-step explanation:

180 - 94 - 41 = 45

x + 111 + 45 = 180

x + 156 = 180

x = 24

7 0
2 years ago
when gail goes on a hike she always packs a ratio of 20 protien bars to 15 water bottles in her backpack . for a short hike ,gai
dimulka [17.4K]

Answer:

  4 bars

Step-by-step explanation:

Gail's ratio of bars to bottles is ...

  20 : 15 = 4 : 3

For 3 bottles, she should pack 4 bars.

8 0
3 years ago
What is the equivalent ratio to 8:1 and :7
topjm [15]

Answer: 56:7

Step-by-step explanation:

You would do 8 times 7 which is 56 and yor ratio would be 56:7

6 0
3 years ago
A document is awarded to a person for completing a course of a study that does not lead to a degree is called a ____.
tatiyna
I got you. The answer would be A (Certificate)
8 0
2 years ago
Other questions:
  • Pls help I’m so annoying but I suck at math
    12·1 answer
  • Solve for c in the literal equation 9p + 7c = p. Represent any fractions in reduced proper or improper form only.
    7·1 answer
  • Mary Alice is trying to answer the question. How many siblings does each member of her 30 person Biology class have. What is the
    11·2 answers
  • Can someone please help me with this (BTW ignore my writing)
    14·1 answer
  • You are purchasing four items and want to calculate the tax. The items cost $2.50, $8.75, $3.00, and $10.25. The tax rate is 6%.
    12·1 answer
  • When factored completely, <br> X^3-7x^2-30x
    14·1 answer
  • it takes perry 11 minutes to sweep a porch. Darryl can sweep the same porch in 10 minutes. Find how long it would take them if t
    9·2 answers
  • Prove that: cos^2 (45+A)+cos^2 (45-A)=1​
    11·2 answers
  • FroYo Express charges $5.75 for a large cup of frozen yogurt and $0.25 for each topping. The Big Chill charges $2.75 for a large
    8·1 answer
  • Find the coordinates of the orthocenter of a triangle with vertices at each set of points on a coordinate plane. a. ​(0,0), ​(16
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!