1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
maria [59]
3 years ago
6

A factory worker packed 12 boxes at a constant rate, took a 30-minute break, and then continued packing the boxes at twice the r

ate before the break. The worker then spent `1/2` an hour cleaning the work area. Which of the following represents the domain for this situation?
A. 4.5≤t≤24
B. 0≤t≤4.5
C. 0
D. 0≤b≤24
Mathematics
1 answer:
Daniel [21]3 years ago
7 0

Answer:

A - 4.5<t<24

Step-by-step explanation:

You might be interested in
What is the solution of x=2+ square root x-2?
alex41 [277]

So I'm going to assume that this question is asking for <u>non extraneous solutions</u>, or solutions that are found in the equation <em>and</em> are valid solutions when plugged back into the equation. So firstly, subtract 2 on both sides of the equation:

x-2=\sqrt{x-2}

Next, square both sides:

(x-2)^2=x-2\\(x-2)(x-2)=x-2\\x^2-4x+4=x-2

Next, subtract x and add 2 to both sides of the equation:

x^2-5x+6=0

Now we are going to be factoring by grouping to find the solution(s). Firstly, what two terms have a product of 6x^2 and a sum of -5x? That would be -3x and -2x. Replace -5x with -2x - 3x:

x^2-2x-3x+6=0

Next, factor x^2 - 2x and -3x + 6 separately. Make sure that they have the same quantity on the inside of the parentheses:

x(x-2)-3(x-2)=0

Now you can rewrite the equation as (x-3)(x-2)=0

Now, apply the Zero Product Property and solve for x as such:

x-3=0\\x=3\\\\x-2=0\\x=2

Now, it may appear that the answer is C, however we need to plug the numbers back into the original equation to see if they are true as such:

2=2+\sqrt{2-2}\\2=2+\sqrt{0}\\2=2+0\\2=2\ \textsf{true}\\\\3=2+\sqrt{3-2}\\3=2+\sqrt{1}\\3=2+1\\3=3\ \textsf{true}

Since both solutions hold true when x = 2 and x = 3, <u>your answer is C. x = 2 or x = 3.</u>

8 0
3 years ago
Write an equation in slope-intercept form of the line with slope of 7 and a y-intercept of 22
iragen [17]

Answer:

y = 7x + 22

Step-by-step explanation:

pretty self explanatory

hope this helps <3

4 0
3 years ago
Read 2 more answers
Does 3,4, and 5 make a right triangle or not a right triangle?
S_A_V [24]

Answer:

I believe it does

Step-by-step explanation:

sorry if i am wrong

6 0
3 years ago
Read 2 more answers
Discuss two other ways in which you encounter percentages in a typical week of your life
djverab [1.8K]
1) In school, you will encounter percentages on class assignments to see how much progress you made in an subject. 2) On a cell phone, you encounter percentages by how much your cell phone is charged in order to know if you need to charge the battery or not.
8 0
3 years ago
Subtract. Write your answer in simplest form. 3\15 - 2\5
fiasKO [112]
Answer 1: 2/5= 6/15 3/15-6/15= -3/15
Answer 2: 7/10= 14/20
1/4= 5/20
difference- 9/20
Answer 3:
2 5/6= 17/6
3 2/5= 17/5
17/6 = 85/30
17/5= 102/30
187/30
Answer 4:
11/2
9/7
77/14
81/14
-4/14
Answer 5:
23/4
35/12
69/12+35/12= 104/12= 26/3
8 0
3 years ago
Other questions:
  • Mike is 3 years old.joe is 6 times as old as mike. whict equation shows how to find Joe's age? 6÷3=2. 9-3=6. 3×6=18. 3×6=9
    11·1 answer
  • Select the word that correctly completes the sentence.
    6·2 answers
  • PLEASE HELP MEE I CAN'T SOLVE THIS BY MYSELF!
    11·1 answer
  • Divide. <br><br> refer to the picture
    6·1 answer
  • Evaluate y=x+5 when y=10.
    7·1 answer
  • Joey and Emily’s teacher gave them each a triangle
    15·1 answer
  • What is the measure of ∠F, to the nearest degree?
    11·2 answers
  • Simplify the expression - 3+(-2/5)
    7·2 answers
  • 3 Ingrid earns $200 each week in salary plus a 20% commission (bonus) on her total sales. If Ingrid wants to earn a total of $40
    9·2 answers
  • How do you use the distributive property to simplify an algebraic<br> expression?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!