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3 years ago

Use the Distributive Property to multiply: 5(x – 9) please help!!!!!

Mathematics

1 answer:

Radda [10]3 years ago

7 0

The answer is 5x - 45 because you have a variable the answer will be an expression

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Which expression is equivalent to the following complex fraction? 1+1/y /1-1/y

Mrac [35]

Answer:

$\frac{y+1}{y-1}$

Step-by-step explanation:

To solve a complex fraction like $\frac{(1+\frac{1}{y} )}{(1-\frac{1}{y} )}$ , take LCM of both the terms separately first to get:

$1+\frac{1}{y}$ = $\frac{y+1}{y}$

and

$1-\frac{1}{y} = \frac{y-1}{y}$

Now combine and divide these terms to get:

$\frac{\frac{y+1}{y} }{\frac{y-1}{y} }$

The term $y$ in both the denominators will be cancelled out by each other and you will be left with:

$\frac{y+1}{y-1}$

Therefore, the expression $\frac{y+1}{y-1}$ is equivalent to the given complex fraction.

6 0

3 years ago

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Using quadratic formula , give your answer as specified x2+4x-1=0 (exact root)

elena-s [515]

Answer: (-2+√5), (-2-√5)

Step-by-step explanation:

1. Reference the formula: [(-b±(√b^2-4ac))/2a]

2. Plug in the values from the equation: [(-4±(√16+4))/2]

3. Simplify: [(-4±(√20))/2]

4. Simplify the root: [(-4±(2√5))/2]

5. Simplify the fraction: [-2±√5]

6. There's your answer: (-2+√5), (-2-√5)

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3 years ago

5/7^3=5(7^x) Find X. Thanks.

Zina [86]

Hello,

$\dfrac{5}{7^3}=5*7^x\\
5*7^{-3}=5*7^x\\

\boxed{x=-3}
$

8 0

3 years ago

What is a+ a/5+ 2/5a

Galina-37 [17]

Answer:

8a over 5

Hope this helps :)

Step-by-step explanation:

8 0

3 years ago

Write the equation of a line parallel to the line y = 2x that passes through -2,-1

maksim [4K]

Answer:

y = 2x + 3

Step-by-step explanation:

A line parallel to y = 2x has exactly the same slope but a different y-intercept, b.

Start with y = mx + b, and replace m with 2, y with -1 and x with -2:

-1 = 2(-2) + b, or

-1 = -4 + b.

Then b = 3, and the desired equation is y = 2x + 3

7 0

3 years ago

Read 2 more answers