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4vir4ik [10]
3 years ago
9

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

Mathematics
2 answers:
vfiekz [6]3 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]3 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
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Clem Colfax had $10 to buy groceries. He needed milk costing 70 cents a carton, bread costing 60 cents a loaf, breakfast cereal
zaharov [31]
Cost of milk per carton = $ 70 cents = 70/100 = $0.7
Cost of bread per loaf = $60 cents = 60/100 = $0.6
Cost of cereals per box = $50 cents = 50/100 = $0.5
Cost of meat per pound = $1.50

If x is the number of cartons of milk bought, then
Number of loafs = x/2
Number pf boxes of cereals = x/2 +1
Number of pounds of meat = x/2 +1

Therefore,
0.7*x + 0.6*x/2 + 0.5 (x/2+1) + 1.5 (x/2+1) = 10
0.7x + 0.3x + 0.25x + 0.5 + 0.75x + 1.5 = 10
2x + 2 =10
2x = 8
x = 4

Substituting;
Milk cartons = 4
Number of bread = 4/2 = 2
Boxes of cereals = 2+1 = 3
Pounds of meat = 3
8 0
3 years ago
Two quantities are related, as shown in the table:
mixer [17]
This answer is Y=-1/2x+11 I believe
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3 years ago
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Nimfa-mama [501]

Answer:

2x^2

Step-by-step explanation:

If you're going to double x^2, you just need to multiply it by 2. You can just put the 2 in front of the x^2 because the order of operations says to do exponents before multiplication.

6 0
2 years ago
M2/n2 is equivalent to _____.
tankabanditka [31]

Answer:

\frac{m^2}{n^2} is equivalent to m^2 \cdot n^{-2}

Step-by-step explanation:

Using exponent rules:

a^{-n}=\frac{1}{a^n}

Given the expression:

\frac{m^2}{n^2}

⇒\frac{m^2}{n^2} = m^2 \cdot \frac{1}{n^2}

Apply the exponent rule, we have;

m^2 \cdot n^{-2}

Therefore, the given expression \frac{m^2}{n^2} is equivalent to m^2 \cdot n^{-2}

8 0
3 years ago
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Answer:25

Step-by-step explanation:

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2 years ago
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