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maksim [4K]
4 years ago
8

Plz help me i need help its for a test i give brailies (:

Mathematics
1 answer:
Anarel [89]4 years ago
8 0
C......................................
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Jake rewrites the expression 81x4 – 1 as a difference of squares so he can factor it. Which answer choice shows how Jake could r
Nuetrik [128]

Answer: (9x^2)^2 -1^2

Step-by-step explanation:

4 0
3 years ago
Someone pelase help me!!!!
Art [367]

Answer:

\boxed{\bold{True}}

\boxed{\bold{True}}

Step By Step Explanation:

Equation One:

Multiply Both Sides By One (Reverse The Inequality)

\bold{\left(-\frac{2}{5}x\right)\left(-1\right)

Simplify

\bold{\frac{2}{5}x

Multiply Both Sides By 5

\bold{5\cdot \frac{2}{5}x

Simplify

\bold{2x

Divide Both Sides By 2

\bold{\frac{2x}{2}

Simplify

\bold{x

-------

Equation Two:

Subtract \bold{\frac{3}{4} } From Both Sides

\bold{-x+\frac{3}{4}-\frac{3}{4}

Simplify

\bold{-x

Multiply Both Sides By -1 (Reverse The Inequality)

\bold{\left(-x\right)\left(-1\right)>\frac{37\left(-1\right)}{4}}

Simplify

\bold{x>-\frac{37}{4}}

8 0
3 years ago
PLEASE TELL ME!!!!!!<br><br> What is the solution to the equation 4/5n-1/5=2/5n
Mashutka [201]

Answer:

4/5n-1/5=2/5n  

One solution was found :

                  n = 1/2 = 0.500

Step-by-step explanation:

Rearrange:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

                    4/5*n-1/5-(2/5*n)=0  

Step by step solution :

Step  1  :

           2

Simplify   —

           5

Equation at the end of step  1  :

   4    1   2

 ((—•n)-—)-(—•n)  = 0  

   5    5   5

Step  2  :

           1

Simplify   —

           5

Equation at the end of step  2  :

   4         1     2n

 ((— • n) -  —) -  ——  = 0  

   5         5     5  

Step  3  :

           4

Simplify   —

           5

Equation at the end of step  3  :

   4         1     2n

 ((— • n) -  —) -  ——  = 0  

   5         5     5  

Step  4  :

Adding fractions which have a common denominator :

4.1       Adding fractions which have a common denominator

Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:

4n - (1)     4n - 1

————————  =  ——————

   5           5    

Equation at the end of step  4  :

 (4n - 1)    2n

 ———————— -  ——  = 0  

    5        5  

Step  5  :

Adding fractions which have a common denominator :

5.1       Adding fractions which have a common denominator

Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:

(4n-1) - (2n)     2n - 1

—————————————  =  ——————

      5             5    

Equation at the end of step  5  :

 2n - 1

 ——————  = 0  

   5    

Step  6  :

When a fraction equals zero :

6.1    When a fraction equals zero ...

Where a fraction equals zero, its numerator, the part which is above the fraction line, must equal zero.

Now,to get rid of the denominator, Tiger multiplys both sides of the equation by the denominator.

Here's how:

 2n-1

 ———— • 5 = 0 • 5

  5  

Now, on the left hand side, the  5  cancels out the denominator, while, on the right hand side, zero times anything is still zero.

The equation now takes the shape :

  2n-1  = 0

Solving a Single Variable Equation :

6.2      Solve  :    2n-1 = 0  

Add  1  to both sides of the equation :  

                     2n = 1

Divide both sides of the equation by 2:

                    n = 1/2 = 0.500

One solution was found :

                  n = 1/2 = 0.500

4 0
4 years ago
Solve for:<br> 1/2 divided by 7 1/2=
lawyer [7]

Answer:

it's 1/7 I think in fraction form hoped I helped :D

Step-by-step explanation:

1/5 x 5/7 = 1/7 (in simplest form)

5 0
3 years ago
Find the greatest common factor pf 110,40,and 120
Ymorist [56]

Answer:

5

Step-by-step explanation:

hope this helps

6 0
3 years ago
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