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3 years ago

Question 16:10y = 10y

Mathematics

1 answer:

xenn [34]3 years ago

6 0

Answer:

y = y

Step-by-step explanation:

Divide both sides of the equation by 10.

$\frac{10y}{10} =\frac{10y}{10}$

$y=y$

Any value of y makes the equation true.

All real numbers.

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Prove the sum of two rational numbers is rational where a, b, c, and d are integers and b and d cannot be zero. Steps Reasons 1.

harkovskaia [24]

Answer:

$\dfrac{ad+bc}{bd}$

Step-by-step explanation:

Let $\frac{a}{b}$ and $\frac{c}{d}$ be two rational numbers, where b and d are not zero and a, b, c and d are integers.

1. Given:

$\dfrac{a}{b}+\dfrac{c}{d}$

2. Multiply to get a common denominator :

$\dfrac{a}{b}+\dfrac{c}{d}=\dfrac{ad}{bd}+\dfrac{cb}{db}$

3. Simplify:

$\dfrac{a}{b}+\dfrac{c}{d}=\dfrac{ad}{bd}+\dfrac{cb}{db}=\dfrac{ad+bc}{bd}$

4. Since $b\neq 0,\ d\neq 0,$ then $bd\neq 0.$

If $a,b,c,d$ are integers, then $bd, ad,bc, ad+bc$ are integers too. So the fraction

$\dfrac{ad+bc}{bd}$

is a rational number

6 0

3 years ago

Read 2 more answers

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enot [183]

Answer is A hope I helped her it

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3 years ago

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2a² - a - 13 =2 I want to see the steps how its done

sammy [17]

Answer:

Step-by-step explanation:

2a^-a-13=2

Subtract 2 from both sides :

2a^2-a-13=2=2-2

2a^2-a-15=0

Factor left side of the equation :

(2a+5) (a-3)=0

Set factors equal to 0 :

2a+5=0 or a-3=0

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3 years ago

Simplify each expression below.

Natalija [7]

Answer:

C) 45-38

Step-by-step explanation:

The reason why this is your answer is because if we subtract, the answer is less than 12.

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2 years ago

Please help, i gotta get my grade up

insens350 [35]

You can plug them each of them into a graphing calculator into y= and then check the table and compare which one is correct. Hope this helps

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3 years ago

Question 16:10y = 10y​

Question 16:10y = 10y