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kaheart [24]
4 years ago
9

I don’t understand none of this math

Mathematics
2 answers:
Elena-2011 [213]4 years ago
7 0

Answer:

Step-by-step explanation:

\frac{a^3-b^3}{5} =\frac{2^3-(-3)^3}{5} =\frac{8-(-27)}{5} =\frac{8+27}{5} =\frac{35}{5} =7

Ivan4 years ago
4 0

Answer:

6

Step-by-step explanation:

(a^3 - b^3)/5

Let a =2 and b = -3

(2^3 -  (-3)^3)/5

Exponents inside the parentheses

(8 - -27)/5

Subtracting a negative is like adding

(8+27)/5

Finish adding inside the parentheses

35/5

Divide

7

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What is 0.14x57.05 and what are the steps
liq [111]

Answer:

7.987

Step-by-step explanation:

  1 4

×     5 7 0 5

+         7 0

+ 0 0 0 0 0  

+     9 8    

+   7 0      

=  7 9 8 7 0

Rewrite the product with 4 total decimal places.

Answer = 7.9870

Therefore:

0.14 × 57.05 = 7.9870

4 0
3 years ago
How do u simplify this?<br> 4r-3+6s-8r-(4s-6)
nalin [4]
Hey there!:

4r -3 + 6s - 8r - (4s - 6)

*distribute parentheses :

=  - ( 4s ) - ( - 6 ) 

Apply minus  - plus rules

- ( - a )  = a  ;  - ( a ) = - a

 =  - 4s + 6


4r -3+ 6 s - 8r -4s + 6 = 

Group like terms :

=4r - 8r + 6s - 4s -3+6

Add similar elements: 4r - 8r= - 4r

-4r + 6s - 4s- 3+6

6s - 4s =  2s

-4r  + 2s  - 3 + 6


Add/Subtract the numbers :

-3 + 6  = 3

Therefore:

= 2s +3 - 4r

hope this helps!




3 0
4 years ago
HELP ASAP The points A(4, 0) and B(3, 7) are two vertices of right triangle ABC . The hypotenuse of the triangle is AB¯¯¯¯¯ . Po
ASHA 777 [7]
If you draw a simple diagram you can see that point to form a right angle ACB, C must be at (3,0).
5 0
3 years ago
Read 2 more answers
Write an equation to represent the problem. Then solve the equation.
valina [46]
8x = 5x + 14
3x = 14
x = 14/3 = 4.6666.....
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3 years ago
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John paints 2 portraits in 8 hours, 3 portraits in 12 hours, and 5 portraits in 20 hours. Which statement correctly describes th
stepladder [879]

Answer:

1 portrait is painted every 4 hours

Step-by-step explanation:

Okay so there aren't any statements but I realized that he paints 1 portrait every 4 hours

If this isn't an option comment them and I will try to see if any match up correctly.

6 0
3 years ago
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