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
Anna35 [415]
3 years ago
5

What are the two solutions of x^2 -2 - 4

Mathematics
1 answer:
NISA [10]3 years ago
6 0

Answer:

x=3+√15​​ ,3−​√15

​

​​

You might be interested in
Which set of points represents equivalent ratios and would follow the same pattern on a graph?
Paladinen [302]
(2,4), (4,8), (3,6), (5,10) because they’re all ratios of 1:2
8 0
3 years ago
True or False? The energy in a pendulum converts kinetic energy to potential energy, and then back again.
Karolina [17]
The answer to this question is true
4 0
3 years ago
Read 2 more answers
The coffee Lily likes is composed of 97.3% water and 2.7% cocoa. The coffee John likes is composed of 96% water and 4% cocoa. Ho
mestny [16]

30 ounces of the coffee John likes consists of

  • 0.96\cdot30=28.8 ounces of water
  • 0.04\cdot30=1.2 ounces of cocoa

To this mixture we're adding x ounces of water, so that the new mix has a total volume of 30+x ounces and matches the composition of the coffee Lily likes. This means it would consist of

  • 0.973\cdot(30+x)=28.8+x ounces of water
  • 0.027\cdot(30+x)=1.2 ounces of cocoa (same amount of cocoa as before because pure water is being added)

Solve for x:

0.973(30+x)=28.8+x\implies29.12+0.973x=28.8+x

\implies0.39=0.027x

\implies x\approx14.4

###

Just to confirm: the new mixture consists of

  • 28.8+14.4=43.2 ounces of water
  • 1.2+0=1.2 ounces of cocoa

giving a total volume of 43.2+1.2=44.4 ounces of coffee, and \dfrac{43.2}{44.4}\approx0.973, as required.

4 0
3 years ago
Which ordered pairs make the inequality true?
tresset_1 [31]
Its the 2nd one becuase 2(-1)+2=0 witch is greater than -4.
3 0
3 years ago
by selling a mobile set of rupees 4800 Ramesh gains 25% how much will have we gained by selling it at rupees 4080​
Crank

Answer:

240

Step-by-step explanation:

Gain=25%

Gain=selling price - cost price

Gain = ((selling price - cost price )× 100)/ cost price

25c=(4800-c)100

25c=480000-100c

125c=480000

cost price = 3840

second statement

The selling price was 4080

Cost price 3840

therefore

Gain=selling price - cost price

Gain = 4080-3840

=240

5 0
3 years ago
Other questions:
  • A coyote can run at top speed at 44 miles per hour how far can it run in 15 minutes
    9·2 answers
  • I need someones help!
    13·1 answer
  • (please help.) (I screenshot the question and choices )
    11·1 answer
  • Which of the following shows the graphic representation of the exponential function f (x) = 3^x
    5·1 answer
  • 338 is the same as 122 reduced by w written as an equation
    11·1 answer
  • Males in the Netherlands are the tallest, on average, in the world with an average height of centimeters (cm) (BBC News website)
    12·1 answer
  • I need help with this please !
    5·2 answers
  • Write as a numeral in simplest form:(6x1000)+(4x100)+(6x1)
    5·1 answer
  • What should I draw...... I’m bored<br><br> Examples:
    14·1 answer
  • -7.5 as a mixed number
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!