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
4vir4ik [10]
4 years ago
9

Help!!!!!!!!!!!!!!!!!!

Mathematics
2 answers:
vfiekz [6]4 years ago
6 0
HEY THERE!!

PHYSICAL PROPERTIES:-

✔️color (intensive)

✔️volume (extensive)

✔️boiling point (intensive): the temperature at which a substance boils.

✔️melting point (intensive): the temperature at which a substance melts.

CHEMICAL PROPERTIES:-

✔️heat of combustion.

✔️enthalpy of formation.

✔️chemical stability under specific conditions.

✔️radioactivity.


HOPE IT HELPS YOU.

USPshnik [31]4 years ago
4 0
Physical properties are anything that will change how it looks but not how it acts.

for example one could be a phase change. where water turns into steam. which is just water in gas form


another example would be pebbles are just rocks but crushed up.

and another physical change would dents. like if you hit a table and it got a dent. it's still a table just with a dent.


chemical changes change the actual way the chemical works.



the way you can tell is by if it gets heat or has a new property that wants their before.

some examples would be lighting wood on fire. it changes the composition of the wood and now it is no longer flammable.

another one would be burning magnesium. it becomes a new substance when you burn it.

the last example could be photsynthiss. you start with carbon and water and turn it into glucose and oxygen
You might be interested in
Percy works two part-time jobs to help pay for college classes. On Monday, he works 3 hours at the library and 2 hours at the co
laila [671]
For the answer to the two questions above,
3x + 2y = 36.50 (I)
2x + 5y = 50 (II)
Eliminating x from the two equations by subtraction:
first we multiply equation I by 2 and equation II by 3
6x + 4y = 73
6x + 15y = 150
Subtracting the two,
-11y = -77
y = 7
He earns $7 at the coffee cart
Substituting y into equation I,
3x + 14 = 36.5
x = $7.50

So we can conclude that, he earns a greater wage of $7.50 at the library,
6 0
3 years ago
Read 2 more answers
▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁
neonofarm [45]

Answer:

270 cm^2

Step-by-step explanation:

This is quite easy.

There is formula for it, the formula is bh/2

b= is the base or side that the triangle's altitude or height is perpendicular to.

h= is the height of the triangle or the altitude of the triangle.

I can always like to thing that a triangle is like half of a rectangle because the area for a rectangle is bh, but in a triangle it is half the bh.

b= 30

h=18

Now substitute the values in the formula

30(18)/2

30 times 18 = 540

divide the product by 2

540/2 = 270

6 0
3 years ago
Read 2 more answers
What is 2x^2-8x+3=0 using the quadratic formula?
Svet_ta [14]

Answer:

x = \frac{4 + \sqrt{10}  }{2}

Step-by-step explanation:

you can also replace the plus sign and put ±

hope this helps and is right :)

7 0
3 years ago
A wall is 4 1/2 feet long and has an area of 15 3/4 square feet. What is its height in feet?
IRINA_888 [86]

Answer:

3 1/2

Step-by-step explanation:

if you multiply 4 and 3 you 12 if you multiply 1/2 times 3 you get 1 1/2 and 1 1/2 + 12 = 13 1/2 and then you have to find a fraction that when multiplied by 4 1/2 you get 2 1/4 and 4 1/2 × 1/2 = 2 1/4 so 2 1/4 + 13 1/2 = 15 3/4

5 0
3 years ago
Find the indicated probabilities using the geometric distribution, Poisson distribution, or the binomial distribution. The mean
ExtremeBDS [4]

Answer:

0.1606 = 16.06% probability that the number of births in any given minute is exactly five.

Step-by-step explanation:

In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:

P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}

In which

x is the number of sucesses

e = 2.71828 is the Euler number

\mu is the mean in the given interval.

In this question:

We only have the mean during an interval, and this is why we use the Poisson distribution.

The mean number of births per minute in a given country in a recent year was about 6.

This means that \mu = 6

Find the probability that the number of births in any given minute is exactly five.

This is P(X = 5). So

P(X = 5) = \frac{e^{-6}*6^{5}}{(5)!} = 0.1606

0.1606 = 16.06% probability that the number of births in any given minute is exactly five.

8 0
3 years ago
Other questions:
  • What is the radius of a circle whose equation is x2 + y2 + 8x – 6y + 21 = 0?<br><br><br> units
    13·2 answers
  • (0,1) (1,2) (2,4) (3,8) (4,16) write a rule to represent the function
    11·1 answer
  • The fabric coast 7¢ per square inch she will only pay for the fabric used to cover the box, even if there is waste or extra. How
    6·1 answer
  • Please asap help im desperate.......................
    5·1 answer
  • Simplify 6^3/6^2<br> A. 6<br> B. 1 1/2<br> C. 18<br> D. 256
    5·1 answer
  • Solve for x -8x+44≥60 and -4x+50&lt;58 Thanks! :)
    12·2 answers
  • Solve the following system using elimination <br> 2 x − 3 y = −2 <br> 9 x − 10 y = 12
    5·1 answer
  • How do you calculate an antilog?<br>eg: antilog 2.1423​
    14·1 answer
  • An environmental study was conducted. It reported that houses with more inhabitants do not necessarily produce more or less tras
    5·2 answers
  • When asked about favorite Thanksgiving leftovers, 9% of the people said turkey and 7/100 said mashed potatoes. Which food is mor
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!