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Yuki888 [10]
3 years ago
12

Determine the domain and range. Please help!!

Mathematics
1 answer:
kipiarov [429]3 years ago
8 0

The domain is the set of all numbers. The range is also the set of all real numbers.

Why is this the case? Because the line extends forever in both directions along the x and y axis. We can plug in any x value and solve for y, or vice versa, and we don't have any restrictions for the input or output.

-----------------------

To write "the set of all real numbers" in interval notation, you would write (-\infty, \infty)

This is the interval from negative infinity to positive infinity, spanning the entire real number line.

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Factor and find the zeros. z^2-z+56
Inessa [10]

Answer:

Sry its long but if your to lazy to look thru it here is the answer=   z = {-7, 8}

Step-by-step explanation:

Simplifying

z2 + -1z + -56 = 0

Reorder the terms:

-56 + -1z + z2 = 0

Solving:

-56 + -1z + z2 = 0

Solving for variable 'z'.

Factor a trinomial.

(-7 + -1z)(8 + -1z) = 0

Subproblem 1

Set the factor '(-7 + -1z)' equal to zero and attempt to solve:

Simplifying:

-7 + -1z = 0

Solving:

-7 + -1z = 0

Move all terms containing z to the left, all other terms to the right.

Add '7' to each side of the equation.

-7 + 7 + -1z = 0 + 7

Combine like terms: -7 + 7 = 0

0 + -1z = 0 + 7

-1z = 0 + 7

Combine like terms: 0 + 7 = 7

-1z = 7

Divide each side by '-1'.

z = -7

Simplifying:

z = -7

Subproblem 2

Set the factor '(8 + -1z)' equal to zero and attempt to solve:

Simplifying:

8 + -1z = 0

Solving:

8 + -1z = 0

Move all terms containing z to the left, all other terms to the right.

Add '-8' to each side of the equation.

8 + -8 + -1z = 0 + -8

Combine like terms: 8 + -8 = 0

0 + -1z = 0 + -8

-1z = 0 + -8

Combine like terms: 0 + -8 = -8

-1z = -8

Divide each side by '-1'.

z = 8

Simplifying:

z = 8

Solution

z = {-7, 8}

4 0
3 years ago
Which statement is true? (Geometry)
Furkat [3]
It's lines DH and FG are parallel
5 0
3 years ago
Find the range & interquartile range of the data set represented by this box plot.
sashaice [31]

Answer:

60 and 25

Step-by-step explanation:

The range is the difference between the maximum value and the minimum value.

maximum value = 125, minimum value = 65

range = 125 - 65 = 60

------------------------------------------

The interquartile range is the difference between the upper quartile Q₃ and the lower quartile Q₁

Q₃ is the value at the right side of the box = 115

Q₁ is the value at the left side of the box = 90

interquartile range = 115 - 90 = 25

4 0
3 years ago
What is the answer of 9k multiply by 9 polynomials​
navik [9.2K]

Answer:

this is what i found

Step-by-step explanation: Multiply k and 9

Multiply k and 1

The k just gets copied along.

The answer is k

k

9*k evaluates to 9k

Multiply m and 9k

Multiply the m and k

Multiply m and k

The m just gets copied along.

The k just gets copied along.

The answer is mk

mk

9*k*m evaluates to 9mk

Multiply u and 9mk

Multiply the u and mk

Multiply u and mk

The u just gets copied along.

The m just gets copied along.

The k just gets copied along.

The answer is umk

umk

9*k*m*u evaluates to 9umk

Multiply l and 9umk

Multiply the l and umk

Multiply l and umk

The l just gets copied along.

The u just gets copied along.

The m just gets copied along.

The k just gets copied along.

The answer is lumk

lumk

9*k*m*u*l evaluates to 9lumk

Multiply t and 9lumk

Multiply the t and lumk

Multiply t and lumk

T

6 0
3 years ago
Read 2 more answers
Please help please please
Natalka [10]
<h2><u>Answer:</u></h2>

'?' is <u>88°.</u>

<h2><u>Step-by-step explanation:</u></h2>
  • First, we work out the final angle of the left triangle, which has a total of 180°. To do this we take 40° and 66° from 180°, giving us <u>72°</u>
  • Because there is a straight line along the bottom (which will total 180°), we take both 72° and 56° from 180°, giving us <u>52°</u>, which is the bottom left angle of the right triangle.
  • Finally, to work out '?', we take 52° and 40° from 180° to get our final answer of <u>88°.</u>
5 0
3 years ago
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