Help help help now plssss offering more than 5 points

Mathematics

1 answer:

zavuch27 [327]2 years ago

5 0

Answer:

Step-by-step explanation:

4(10^2) = 400

Check:

10x10=100 (area of 1 wall)

100× 4(the 4 walls)

4(10^2) = 400✅

You might be interested in

X=y+2 X=2y+1 Solving Systems of Equations by subtraction Please solve this

vivado [14]

Answer:

$x=3$

$y=1$

Step-by-step explanation:

We can subtract the first equation from the second to find the value of $y$ , although we can also do this vice versa.

$x-x=2y+1-y-2$

$y-1=0$

$y=1$

Now, we can use substitution to solve for $x$ :

$x = y+2$ (pick any equation for substitution)

$x=1+2$

$x=3$

Hope this helps :)

8 0

2 years ago

Jose has 7 used stamps for every 4 new stamps. If he has 28 new stamps, how many used stamps does he have?

kipiarov [429]

Answer:

Step-by-step explanation:

8 0

2 years ago

Which compound most likely contains polar covalent bonds? NaCl AlF3 Br2 NF3

belka [17]

Answer: The correct answer is $NF_3$

Explanation:

In $NF_3$ molecule, there are three bond pairs and one lone pair present in the molecule. In a molecule, lone pair present on the nitrogen atom will have a dipole moment in upward direction where as total dipole moment formed by three fluorine atoms will be more in magnitude and it will be directed in downward direction which means that the net dipole moment will be in downward direction. As shown in image attached.

Hence, covalent bond present between nitrogen and fluorine will become polar in nature.

So, the correct answer is $NF_3$ .