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3 years ago

Expand and simplify (x-5)(x+5)

Mathematics

1 answer:

BigorU [14]3 years ago

4 0

The answer is X^2 - 25 click on the box for more details or explain.

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Please answer correctly !!!!!!!!!! Will mark brainliest !!!!!!!!!!!!

MArishka [77]

Answer:

- 18y = 1

Step-by-step explanation:

Adding the 2 equations term by term on both sides gives

(- 5x + 5x) + (- 9y - 9y) = (3 - 2), that is

0 + (- 18y) = 1

- 18y = 1

7 0

3 years ago

What is the factored form of -7y-y^2=0

Sveta_85 [38]

Factor out like terms
-y(7+y)=0

4 0

3 years ago

Solve the following equation for the variable indicated<br> 15 = Зn + 6р, for n

Taya2010 [7]

Answer:

Solving the equation $15 = 3n + 6p$ for variable n we get $\mathbf{n=5-2p}$

Step-by-step explanation:

We need to solve the equation $15 = 3n + 6p$ for variable n

Solving:

$15 = 3n + 6p$

Subtract both sides by 6p

$15-6p = 3n +6p -6p\\15-6p=3n$

Switch sides of equality

$3n=15-6p$

Divide both sides by 3

$\frac{3n}{3} =\frac{15-6p}{3}\\n=\frac{3(5-2p)}{3}\\n=5-2p$

So, solving the equation $15 = 3n + 6p$ for variable n we get $\mathbf{n=5-2p}$

8 0

3 years ago

Gina wants to go to the water park with her friends. They have a total of www dollars to buy 555 tickets. Each ticket costs 1515

alexdok [17]

Answer:

151,515 * 555 = www

Step-by-step explanation:

Yeah so basically www is the total amount of dollars they have to buy 555 tickets. And each ticket costs $151,515, so like it's the cost per ticket times the amount of tickets to get the total amount of dollars

7 0

3 years ago

Find the inverse of f(x)=4x+3

zhuklara [117]

$f(x) = 4x+3\\\\\text{Write f(x) as y = 4x+3}\\\\\text{Replace x with y,}\\\\x =4y +3\\\\\text{Solve for y:}\\\\ \implies x =4y+3\\\\\implies 4y = x-3 \\\\\implies y =\dfrac{x-3}4\\\\\implies f^{-1} (x) = \dfrac{x-3}4\\\\\text{This is the inverse of f(x)}$

4 0

2 years ago