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3 years ago

Rewrite the expression from part B by distributing -1 from each of the negative numbers.

Mathematics

1 answer:

WINSTONCH [101]3 years ago

6 0

Answer:

I dont know an and i really need help on somthing and i dont have points and i joined today and got no points.

Step-by-step explanation:

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For what values of the variables are the following expressions defined? 1. 5y+2 2. 18/y 3. 1/x+7 4. 2b/10−b Example: X>7

Serga [27]

Answer:

1. All real numbers

2. All real numbers except y = 0

3. All real numbers except x = -7

4. All real numbers except b = 10

Step-by-step explanation:

For any function to be defined at a particular value, it should not be approaching to a value $\infty$ or it should not give us the $\frac{0}{0}$ (zero by zero) form when the input is given to the function.

The value of function will depend on the denominator.

Now, let us consider the given functions one by one:

1. 5y+2

Here denominator is 1. So, it can not attain a value $\infty$ or $\frac{0}{0}$ (zero by zero) form

So, for all real numbers, the function is defined.

$2.\ \dfrac{18}{y}$

At y = 0, the value

$At\ y =0, \dfrac{18}{y} \rightarrow \infty$

So, the given function is defined for all real numbers except y = 0

$3.\ \dfrac{1}{x+7}$

Let us consider denominator:

x + 7 can be zero at a value x = -7

$At\ x =-7, \dfrac{1}{x+7} \rightarrow \infty$

So, the given function is defined for all real numbers except x = -7

$4.\ \dfrac{2b}{10-b}$

Let us consider denominator:

10-b can be zero at a value b = 10

$At\ b =10, \dfrac{2b}{10-b} \rightarrow \infty$

So, the given function is defined for all real numbers except b = 10

7 0

3 years ago

Kayla was in charge of bringing snacks to the soccer game. She brought 8 oranges, 6 apples and 10 pears. What is the ratio of ap

jonny [76]

Answer:

6:10

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

Greatest common factor of 3 and 15

kkurt [141]

The greatest common factor of 3 and 15 is 15.

8 0

3 years ago

Evaluate 2.6 raised to the seventh power divided by 2.6 raised to the sixth power, all raised to the second power.

igomit [66]

The evaluation of 2.6 raised to the seventh power divided by 2.6 raised to the sixth power, all raised to the second power is as follows:

$(\frac{2.6^{7} }{2.6^{6} } )^{2} = 6.76$

<h3>How to evaluate an expression?</h3>

2.6 raised to the seventh power divided by 2.6 raised to the sixth power, all raised to the second power.

The following expression can be evaluated as follows;

$(\frac{2.6^{7} }{2.6^{6} } )^{2}$

Using the law of indices,

$(A^{x} )^{y} = A^{xy}$

Therefore,

$(\frac{2.6^{7} }{2.6^{6} } )^{2} = (\frac{2.6^{14} }{2.6^{12} } )$

Using the law of indices,

$\frac{A^{x} }{B^{y} } = A^{x-y}$

Hence,

$(\frac{2.6^{7} }{2.6^{6} } )^{2} = (\frac{2.6^{14} }{2.6^{12} } ) = 2.6^{14-12} = 2.6^{2} = 6.76$

Therefore,

$(\frac{2.6^{7} }{2.6^{6} } )^{2} = 6.76$

The evaluation of 2.6 raised to the seventh power divided by 2.6 raised to the sixth power, all raised to the second power is 6.76.

learn more on expression here: brainly.com/question/28337613

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7 0

2 years ago

What's the mean of 0,1,3,2

Artist 52 [7]

Hi Tim! Thanks for asking a question here on Brainly.

☛ To find the mean, we add together all the numbers and then divide it by the amount of numbers there are.

0 + 1 + 3 + 2
= 6
= 6 / 4 = 1.5

Answer: 1.5

Hope that helps! ★ If you have further questions about this question or need more help, feel free to comment below or leave me a PM. -UnicornFudge aka Nadia

5 0

3 years ago