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
Luda [366]
3 years ago
11

Use the quadratic formula to solve 2^2 − 5 − 5 = 0 The formula is : ( -b ± √b^2 - 4ac ) / 2a

Mathematics
1 answer:
Serggg [28]3 years ago
8 0

Answer:

x = 5/4 + √65/4 or x = 5/4 - √65/4

Step-by-step explanation:

I'm assuming you mean 2x^2-5x-5=0?

x = ( -b ± √b^2 - 4ac ) / 2a

x = ( -(-5) ± √(-5)^2 - 4(2)(-5) ) / 2(2)

x = ( 5 ± √(25 + 40) ) / 4

x = ( 5 ± √65 ) / 4

x = 5/4 ± √65/4

Therefore, x = 5/4 + √65/4 or x = 5/4 - √65/4

You might be interested in
A circle has a radius of 63 cm.
Montano1993 [528]
Arc length = radius * central angle (in radians)
arc length = 63 * 2PI/9 radians
arc length = 14 PI

4 0
3 years ago
Read 2 more answers
Professor Vinculum investigated the migration season of the Bulbul bird from their natural wetlands to a warmer climate. He foun
coldgirl [10]

The population of the Bulbul birds at the start of the migration season is 1800.

<h3>Exponential function</h3>

An exponential function is given by:

y = abˣ

Let y, x are variables, a is the initial value and b is the multiplication factor.

Let P be the population of the bird t days since the start of the migration season.

P=1350+400(1.25)^{-t}\\\\At\ the\ start\ of\ the\ season(t=0):\\\\P=1350+400(1.25)^{-0}\\\\P=1350+450=1800

The population of the Bulbul birds at the start of the migration season is 1800.

Find out more on Exponential function at: brainly.com/question/12940982

8 0
2 years ago
the length of a rectangle is 4 inches greater than the width. the perimeter of the rectangle is 24in what are the dimensions of
Murljashka [212]
Let's say:
lengh=x
width=y

"The length of a rectangle is 4 inches greater than the width."
That means: x=y+4 (in inches).

the parameter is (by definition) 2*lenght+2*width.

so we have 2*x+2y=24.
we also know that x=y+4

Substituting:

2*(y+4)+2y=24.
2*y+8+2y=24
4*y+8=24//substitute 8 from both sides
4*y=16//dividing both sides by 4.

y=4
So the width is 4!

The lenght is y+4=8!
the dimensions are 4 by 8.
(check: 2*4+2*8=24, correct!)
5 0
3 years ago
Town M is 282 feet below sea level. Town R is 679 feet above sea level. How much higher, in feet, is Town R than Town M?​
krek1111 [17]

Answer:

397 feet

Step-by-step explanation:

All you have to do is subtract the feet of Town R from Town M. The equation would look like this.

679 - 282 =397

So Town R is 397 feet higher than Town M.

Hope that helps and have a great day!

7 0
3 years ago
11) slope and y-intercept, if the answer ignore this if you do know the answer than plz answer
makvit [3.9K]

Answer:

Slope : -1

Y-intercept : (0,6)

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Other questions:
  • Simone and Nang read a total of 23 books over the summer.
    10·1 answer
  • What is the simplified form of 3 to the square root of 7-5 to the square root of 7
    6·1 answer
  • which of the following are used to describe the probability of an event ? a 2.6 or b -3 or c 0.5 or d 100
    15·1 answer
  • Solve question please​
    12·2 answers
  • A bakery sells 5 apple muffins for every 2 bran muffins sold . Which table shows this ratio
    10·2 answers
  • HELP ASAP FIND AREA PLZ
    12·1 answer
  • Simplify i to the 37th power<br> A-1<br> B- -1<br> C- -i<br> D- i
    13·1 answer
  • pls show steps and formula
    15·1 answer
  • Cual es el mínimo común múltiplo de 360
    9·1 answer
  • Harold is baking chocolate cupcakes for the school bake sale. He made 36 cupcakes yesterday, and he wants to bring 96 cupcakes i
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!