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
Ad libitum [116K]
3 years ago
14

Consider this quadratic equation. 2x2 − 1 = 3x + 4 Which equation correctly applies the quadratic formula?

Mathematics
1 answer:
Mariulka [41]3 years ago
6 0

Answer:

\frac{-(-3)+-\sqrt{(-3)^2-4(2)(-5)}}{2(2)}

Step-by-step explanation:

Quadratic formula: \frac{-b+-\sqrt{b^2-4ac} }{2a}

2x^2-1=3x+4\\\\2x^2-3x-5=0\\\\\\frac{-(-3)+-\sqrt{(-3)^2-4(2)(-5)}}{2(2)} \\\frac{3+-\sqrt{9+40} }{4}

x = \frac{3+-7}{4}

Hope this helps and God bless!

You might be interested in
Parker wants to ride his bicycle 34 miles this week. He has already ridden 10 miles. If he rides for 5 more days, how many miles
vazorg [7]

Answer: He rode 4.8 miles each day.

Variable: x = Constant distance distance traveledd each day.

Equation : 10+5x=34

Step-by-step explanation:

Total distance needs to travel = 34 miles

Distance already traveled = 10 miles

He will ride bicycle for 5  more days.

Let x = Constant distance distance traveledd each day.

Total distance = 10+5x

i.e.

10+5x=34\\\\\Rightarrow\ 5x=24\\\\\Rightarrow\ x=4.8

Hence, he rode 4.8 miles each day.

7 0
3 years ago
Diego lives 1/2 Mike from school. What is 50% of 1/2
kakasveta [241]

Answer:

its 1/4

Step-by-step explanation:

becuase since 1/2 is 50 just divide 50 by 2

3 0
4 years ago
Read 2 more answers
5s + 2z = 1.32 <br> 3s + 1z = 0.75 <br> what would the answer be?
Sphinxa [80]

Answer:                                                                    

Step-by-step explanation:

7 0
3 years ago
WHOEVER ANSWERS FIRST ILL MARK BRAINLIEST!!!
maksim [4K]

Answer:

17

Step-by-step explanation:

6 0
3 years ago
Find an equation of the line that passes through (-5,-7) and is parallel to 5x+9y+18=0. Give answer in slope intercept form
Kipish [7]

Answer:

y = - \frac{5}{9} x - \frac{88}{9}

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Rearrange 5x + 9y + 18 = 0 into slope- intercept form

Subtract 5x + 18 from both sides

9y = - 5x - 18 ( divide all terms by 9 )

y = - \frac{5}{9} x - 2 ← in slope- intercept form

with m = - \frac{5}{9}

Parallel lines have equal slopes, thus

y = - \frac{5}{9} x + c ← is the partial equation

To find c substitute (- 5, - 7) into the partial equation

- 7 = \frac{25}{9} + c ⇒ c = - 7 - \frac{25}{9} = - \frac{88}{9}

y = - \frac{5}{9} x - \frac{88}{9} ← equation of line

5 0
3 years ago
Other questions:
  • What is rarional number?
    5·1 answer
  • One number is 3 times a first number, a third number is 100 more than the first number. If the sum of the three number is 245. F
    12·1 answer
  • 5 bridesmaids want to make 325 decorations for a wedding. Each decoration takes about 2 1/2 minutes to make. Which response give
    14·2 answers
  • It takes Jill 2 hours to run 14.5 miles at this rate how far could she run in 3 hours
    12·2 answers
  • In trapezoid EFGH, EF¯¯¯¯¯ and HG¯¯¯¯¯¯ are the bases. Point J is the midpoint of EH¯¯¯¯¯¯ and point K is the midpoint of FG¯¯¯¯
    11·1 answer
  • A school charges $4.99 per child, $6.00 per adult, and $2.50 per baby, to go see the school play. How much money would they coll
    10·1 answer
  • On Thursday the high temperature was 0°C. If it was three degrees colder on Friday what was the temperature
    15·2 answers
  • If x = 3 /4 and y = 8, consider the sum of x and y. Which statement describes the sum of x and y? A) The sum of x and y is a rat
    5·1 answer
  • Donald writes 6 x 9 = 54. Explain two strategies you could use to check his work.​
    10·1 answer
  • Write the expression in complete factored form.<br> 2a(x-8) + q(x - 8)=
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!