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3 years ago

Is this a function or not

Mathematics

2 answers:

LenKa [72]3 years ago

7 0

Answer is that it’s not a function

kodGreya [7K]3 years ago

3 0

Answer:

no its a not funtion

Step-by-step explanation:

bc 1 n 3 is reapeat

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Use the rules of exponents to simplify the expressions. Match the expression with its equivalent value.

Lelechka [254]

Answer:

1) $\frac{(-2)^{-5}}{(-2)^{-10}}=-32$

2) $2^{-1}.2^{-4} = \frac{1}{32}$

3) $(-\frac{1}{2} )^3.(-\frac{1}{2} )^2=-\frac{1}{32}$

4) $\frac{2}{2^{-4}} = 32$

Step-by-step explanation:

1) $\frac{(-2)^{-5}}{(-2)^{-10}}$

Solving using exponent rule: $a^{-m}=\frac{1}{a^m}$

$\frac{(-2)^{-5}}{(-2)^{-10}}\\=(-2)^{-5+10}\\=(-2)^{5}\\=-32$

So, $\frac{(-2)^{-5}}{(-2)^{-10}}=-32$

2) $2^{-1}.2^{-4}$

Using the exponent rule: $a^m.a^n=a^{m+n}$

We have:

$2^{-1}.2^{-4}\\=2^{-1-4}\\=2^{-5}$

We also know that: $a^{-m}=\frac{1}{a^m}$

Using this rule:

$2^{-5}\\=\frac{1}{2^5}\\=\frac{1}{32}$

So, $2^{-1}.2^{-4} = \frac{1}{32}$

3) $(-\frac{1}{2} )^3.(-\frac{1}{2} )^2$

Solving:

$(-\frac{1}{2} )^3.(-\frac{1}{2} )^2\\=(-\frac{1}{8} ).(\frac{1}{4} )\\=-\frac{1}{32}$

So, $(-\frac{1}{2} )^3.(-\frac{1}{2} )^2=-\frac{1}{32}$

4) $\frac{2}{2^{-4}}$

We know that: $a^{-m}=\frac{1}{a^m}$

$\frac{2}{2^{-4}}\\=2\times 2^4\\=2(16)\\=32$

So, $\frac{2}{2^{-4}} = 32$

3 0

3 years ago

Three less than a numbers divided by 4 is five

mariarad [96]

Answer:

x/4 (-3) = 5

Step-by-step explanation:

Simply translate into numbers. :D

5 0

3 years ago

Read 2 more answers

Answer for Brainliest 1)7/4+5/8= 2)3/2+4/3= 3)2/3+10/7= 4)4-3/17

Sunny_sXe [5.5K]

Answer:

See below.

Step-by-step explanation:

1) 7/4 + 5/8

= 14/8 + 5/8

= 19/8 or 2 3/8

2) 3/2 + 4/3

= 9/6 + 8/6

= 15/6

= 5/2 or 2 1/2

3) 2/3 + 10/7

= 14/21 + 30/21

= 44/21 or 2 2/21

4) 4 - 3/17

= 68/17 - 3/17

= 65/17 or 3 14/17

5 0

2 years ago

Read 2 more answers

The equation y = 155x + 110, 419 approximates the total cost in dollars, of raising a child in the United States from birth to 1

faust18 [17]

Answer: Third option.

Step-by-step explanation:

According to the information given in the exercise, you can find an approximation of the the total cost in dollars of raising a child in the United States ( from birth to 17 years) given a household's annual income, with the following equation:

$y = 1.55x + 110, 419$

Where "x" represents the household's annual income in dollars.

Therefore, if the annual income is $62,500; you can identify that:

$x=62 ,500$

Then, in order to calculat the approximated cost to raise a child in a household with that annual income given in the exercise, you need to substitute that value of "x" into the equation and then you must evaluate in order to find the value of "y".

Through this procedure you get the following result:

$y = 1.55(62 ,500) + 110, 419\\\\y=96,875+ 110, 419\\\\y=207,294$

6 0

3 years ago

What is the slope of the line in the coordinate plane?

liberstina [14]

Answer:

slope is rise over run

My math teacher says that

5 0

3 years ago