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denis-greek [22]
3 years ago
7

Please help me with this please

Mathematics
1 answer:
Wittaler [7]3 years ago
3 0

Answer:

It's important for scientists to know the properties of matter because all things are made up of matter. Each type of matter has different physical characteristics and scientists need to know and understand these characteristics to make calculations. ... The main phases of matter are solid, liquid, and gas.

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3x+4y =-5<br> 3x+3y=-2<br><br> solve using substitution
galben [10]
3x + 4y = -5 
-3x              -3x

4y= -3x -5
/4      /4

y= -3/4x-5/4

3x + 3y = -2
-3x             -3x

3y = -3x-2
/3       /3

y= -1x-2/3

7 0
4 years ago
7ft = __ inches. Show work
Harrizon [31]

Answer:

Step-by-step explanation:

12 inches is in a foot

10 x 7= 70

2 x 7= 14

70+14=84

6 0
3 years ago
How do you solve this equation <br> 9/4 Divided by -3/4?<br> Anything will help <br> Thanks ^w^
gizmo_the_mogwai [7]

Answer:

you would have to multiply and Keep change flip keep the 9/4 change the division to miltiplication and flip -3/4 to 4/-3 then u slove

9/4 * 4/-3

Step-by-step explanation:

8 0
4 years ago
Read 2 more answers
What is the value of A when we rewrite<br> (5/2)^x +(5/2)^x+3 as A x (5/2)^x
elixir [45]

Answer:

Step-by-step explanation:

(\frac{5}{2})^{x}+(\frac{5}{2})^{(x+3)}=(\frac{5}{2})^{x}+(\frac{5}{2})^{x}*(\frac{5}{2})^{3}\\\\=(\frac{5}{2})^{x}*[1+(\frac{5}{2})^{3}]

Therefore,

A=1+(\frac{5}{2})^{3}

3 0
3 years ago
The area of a rectangular floor is 3.5m^2, one side is 1.5m longer than the other. Calculate the dimension
USPshnik [31]

Answer:

the area= 12.25 one side =: 1.5 then the dimension then answer is 13.75

8 0
4 years ago
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