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
Blababa [14]
3 years ago
11

Please help me thank you

Mathematics
1 answer:
kompoz [17]3 years ago
4 0
9 / (4x-2) = 12 / (3x+2)
9 (3x+2) = 12 (4x-2)
27x + 18 = 48x - 24
48x - 27x = 18 + 24
21x = 42
    x = 2

answer is C
x = 2


You might be interested in
Rewrite the equation of the parabola in vertex form. y= x2 + 8x - 21
sergey [27]

Answer:

y=(x+4)^{2}-37

Step-by-step explanation:

we know that

The equation of a vertical parabola into vertex form is equal to

y=a(x-h)^{2}+k

where

(h,k) is the vertex of the parabola

if a> 0 then the parabola open upward (vertex is a minimum)

if a< 0 then the parabola open downward (vertex is a maximum)

In this problem we have

y=x^{2}+8x-21

Convert to vertex form

Complete the square

y+21=x^{2}+8x

y+21+16=(x^{2}+8x+16)

y+37=(x^{2}+8x+16)

y+37=(x+4)^{2}

y=(x+4)^{2}-37 --------> equation in vertex form

The vertex is the point (-4,-37)

the parabola open upward (vertex is a minimum)

4 0
2 years ago
Read 2 more answers
Name the two solutions of (2x – 1)2 = 25.
Ket [755]
Answer:

X= 27/4, 6 3/4, 6.75
4 0
2 years ago
​Solve for x. −2(x+1/3)+9x=4 ​ ​Enter your answer in the box.
IrinaK [193]

x= 2/3

ik because i had the same question hope it will help.

3 0
3 years ago
Read 2 more answers
You want to estimate the number of students in your middle school school who buy school lunch. Which sample is unbiased?
Nezavi [6.7K]
A biased example: Asking students who are in line to buy lunch 

An unbiased example: Asking students who are leaving/going to lunch(<em>NOT buying </em><em>lunch</em><em />).

But in this case, the answer choices can be... confusing.
Don't panic! You're given numbers and, of course, your use of logic.

Answer choice A: 100 students grades 6-8
Answer choice B: 20-30 students any <em>one</em> grade<em></em><em>
</em>Answer choice C: 5 students
<em></em>Answer choice D: 50 students grade 8

An unbiased example would be to choose students from <em>any grade.</em> So we can eliminate choices B and D.

Now, the question wants to <em>estimate how many people at your middle school buy lunch.</em> This includes the whole entire school, and if you are going to be asking people, you aren't just going to assume that if 5 people out of 5 people you asked bought lunch, the whole school buys lunch.

So, to eliminate all bias and/or error by prediction, answer choice A, the most number of students, is your answer.

6 0
3 years ago
Every 3 days Marco fills up his car with gas. Every 8 days he washes his car. On what day will Marco fill his car with gas and w
stiks02 [169]
I the week starts on Monday he will fill Monday and Saturday and on each Monday he will wash his car
7 0
3 years ago
Other questions:
  • The ratio of shoes sold to sandals was 5:2. if there were 40 sandals sold, how many shoes were sold?
    15·2 answers
  • GPA and study time. A survey was conducted on 218 undergraduates from Duke University who took an introductory statistics course
    13·1 answer
  • What number is 100, 000, 000 more then 5, 438, 724, 022?
    7·1 answer
  • All values equivalent to 1/2
    10·1 answer
  • What is the probability that a student chosen at random has a GPA less than 3.00?
    11·1 answer
  • URGENT: What is (x²-7x+11)x²-11+30??
    11·2 answers
  • What is the equation of the line? i’m very confused help
    13·1 answer
  • Dana found 6 rolls of yellow ribbon and green ribbon. Each roll of yellow ribbon was 1 meter long and each roll of green ribbon
    15·2 answers
  • If you have 10 dogs and each one has 7 puppies how many puppies to all of them have?
    15·1 answer
  • What is slope I need help finding the slope please help me
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!