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
Mandarinka [93]
3 years ago
15

...................................................................

Mathematics
1 answer:
bogdanovich [222]3 years ago
3 0

Answer:

c

Step-by-step explanation:

You might be interested in
PLEASE HELP ASAP
Ksenya-84 [330]
1. The area of the photograph is:
 
 A=LxW
 
 A is the area of the photograph (A=54 in²).
 L is the lenght of the photograph (L=12-4x).
 W is the widht of the photograph (W=12-2x)
 
 2. When you substitute these values into the formula A=LxW, you obtain:
 
 A=LxW
 54=(12-4x)(12-2x)
 
 3. When you apply the distributive property, you have:
 
 54=144-24x-48x+8x²
 8x²-72x+144-54=0
 
 4. Finally, you obtain a quadratic equation for the area of the photo:
 
 8x²-72x+90=0
 
 5. Therefore, the answer is:
 
 8x²-72x+90=0

6 0
3 years ago
Find the two-digit number which is 2 times the sum of its digits. Find a statement and number, please.
poizon [28]
A two-digit number is twice the sum of its digit. If the tens digit is 7 less than the unit digit, find the number. 
Let x= the unit digit
Then y= the tens digit
<span>And 10y+x= the number 


</span>x+y= the sum of the digits 
<span>Now we are told that 10y+x=2(x+y) ------1st equation </span>
<span>We are also told that y=x-7 ----------- 2nd Equation </span>
<span>So our equations to solve are: </span>
(1) 10y+x=2(x+y)
<span>(2) y=x-7 
</span>

Hope it helps
5 0
3 years ago
Read 2 more answers
In the document below it´s assigned a portion of the book, from there you need to choose a chapter, re-do the situation that the
Molodets [167]
What are you asking anyways hope you get a good grade
6 0
3 years ago
Read 2 more answers
Math workshops and final exams: The college tutoring center staff are considering whether the center should increase the number
oksian1 [2.3K]

Answer:

Option D

Step-by-step explanation:

The response variable is also known as the dependent variable. It depends on another factor which is the independent variable to cause change/ response to it.

In this study, they want to test if an increase in the number of Math workshop which is the independent variable will cause a change in the final exam scores which is the dependent variable. The response to this inquiry is thus the final exam score which is also known as the response variable.

7 0
3 years ago
Use the Algebra Tiles to construct the algebraic expression for this situation:
Zigmanuir [339]
That’s a hard one use Brainly to find the answer
6 0
3 years ago
Other questions:
  • Which of the following is the measure of ÐQRS?
    15·2 answers
  • How far does a plane travel in 5 hours if it is moving at a constant speed of 200km/h?
    10·1 answer
  • Help please!!! Thxxx
    7·1 answer
  • I need help, could someone help me solve this? Also please explain so I can do other ones on my own. Thanks in advance!​
    13·1 answer
  • 1) Solve the system by elimination?
    5·1 answer
  • Write a quadratic function to model the graph to the right
    14·1 answer
  • How to find the constant rate of proportionality
    7·1 answer
  • What is the slope of the line that passes through the points (2,-5) and (-6,4) ?
    6·1 answer
  • (-2.8)_0<br> what is greater than or less than
    5·1 answer
  • Martha estimated there were 83 marbles in a jar for a contest. The actual number of marbles in the jar was 105. What was the per
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!