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lesya692 [45]
3 years ago
5

Using the graph of the quadratic function, identify the domain

Mathematics
1 answer:
galina1969 [7]3 years ago
3 0

Answer: Choice B)  -infinity < x < infinity

==========================================================

Explanation:

The parabola goes on forever to the left and to the right. We can plug in any x value without worrying about something as a division by zero error. So any real number will work.

Writing -infinity < x < infinity refers to the entire number line, which is the set of all real numbers.

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What is the answer and steps if x=6
Artemon [7]
If "x" equals 6 

Then....

Because,&#10;\\  \sqrt{6-5=y}^2 \\ y^2 - 1 = 0 \\  \sqrt{6 - 5} = 1 \\ 1  \neq  -1  \\ Answer(maybe) : y = 1

8 0
3 years ago
Question 2 <br> Find three consecutive odd integers whose sum is 99.
algol [13]

Answer:

31, 33, 35

Step-by-step explanation:

 

Let 2n+1 be the first odd number. What will the next one be? Add two:

Let 2n+3 be the next odd number. Again, what is the next one? Add two:

Let 2n+5 be the third odd number.

 

The sum of those three numbers must be 99. You don't have to have the parenthesis here, but I think they help clarify where everything comes from.

 

(2n+1) + (2n+3) + (2n+5) = 99

 

Add like terms, and solve for n:

 

6n + 9 = 99

6n = 90

n = 15

 

The three odd numbers we want are:

2(15)+1 = 31

2(15)+3 = 33

2(15)+5 = 35

 

Double check: 31+33+35 = 99?

8 0
3 years ago
Read 2 more answers
(ax + by)(cx – dy)
LekaFEV [45]

The coefficient of the xy term when  the expression is multiplied out

and the like terms  are collected is zero

Step-by-step explanation:

There two binomials we need to multiply them

The steps of multiplying two binomials

1. Multiply the first terms

2. Multiply the second terms

3. Multiply the 1st tern in the first bracket by the 2nd term in the

   second bracket

4. Multiply the 2nd tern in the first bracket by the 1st term in the

   second bracket

5. Add the like terms

In (ax + by)(cx – dy)

∵ (ax)(cx) = ac x²

∵ (by)(-dy) = - bd y²

∵ (ax)(-dy) = - ad xy

∵ (by)(cx) = bc xy

- Then like terms are (- ad xy) and (bc xy) add them

∵ (- ad xy) + (bc xy) = (-ad + bc) xy

∴ The coefficient of the xy term is (-ad + bc)

∵ ad = bc

- Replace ad by bc in the bracket above

∴ The coefficient of the xy term = (-bc + bc)

∴ The coefficient of the xy term = zero

<em>The coefficient of the xy term when  the expression is multiplied out</em>

<em>and the like terms  are collected is zero</em>

<em></em>

Learn more:

you can learn more about binomials in brainly.com/question/2334388

#LearnwithBrainly

5 0
3 years ago
Adam has been asked to post a parcel for a family member. He has been told that the parcel weighs 12lbs 8oz. How much does the p
alukav5142 [94]

Answer is 6 kg:

Given that Adam was asked to post a parcel.  The weight of the parcel was 12 lbs and 8 oz.

To convert the weight in kgs:

Let us convert oz into pounds first to make it uniform.

We have 16 0z. = 1 lb

Hence 8 oz. = 8/16 = 0.5 lbs

Weight of the parcel = 12.5 lbs.

We have the converting factor as

2.2 pounds make 1 kg.

Hence 12.5 pounds = 12.5/2.2 = 5.6818

So weight of the parcel in kg= 6. (after rounding off)

8 0
3 years ago
What is the mean of Variable B? Express answer to one decimal place.
Valentin [98]
A variable is a letter or sign you multiply something buy
7 0
3 years ago
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