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3 years ago

Calculate the value of b + 12.5=12

Mathematics

2 answers:

Bingel [31]3 years ago

7 0

Answer:

Move all terms not containing b to the right side of the equation.

b = − 0.5

Step-by-step explanation:

KATRIN_1 [288]3 years ago

3 0

Answer:

$\large\boxed{b = -0.5}$

Step-by-step explanation:

Hope this helps, have a great day

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Find the domain of f(x)=x-9/x squared-81

vagabundo [1.1K]

$f(x)=\dfrac{x-9}{x^2-81}\\\\\text{The domain:}\\\\x^2-81\neq0\qquad\text{add 81 to both sides}\\\\x^2\neq81\to x\neq\pm\sqrt{81}\\\\x\neq-9\ \wedge\ x\neq9\\\\Answer:\ \boxed{\text{All real numbers except -9 and 9}}\to\boxed{x\in\mathbb{R}-\{-9,\ 9\}}$

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3 years ago

Let A = -4k+ 3 and B = 3k +17. If A = B, then what is the value of k?

kupik [55]

Answer:

k=-2

Step-by-step explanation:

Using substitution to find what you're missing, (in this case k) is when you plug each letter into the other equation:

-4k+3=3k+17

So now solve for k:

subtract 3 from both sides...

-4k=3k+14

subtract 3k from both sides to combine with -4k...

-7k=14

divide -7 from both sides...

k=-2

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1 year ago

The selling price of a watch is rs 220. If 10% profit has been included in the marked price of the watch, what is the marked pri

horrorfan [7]

Answer:

22 is 10 of 220

Step-by-step explanation:

hope it help

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3 years ago

A.You are told that a company's profits this year are 120% of their profits from last year. If their

Elden [556K]

Answer:

29,160,000

Step-by-step explanation:

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3 years ago

6i - 5 = 2i +27<br> distributive property

Juli2301 [7.4K]

Answer:

4i + 22

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7 0

3 years ago

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