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
yanalaym [24]
3 years ago
13

Can I get help please with all 20 questions I have 156points

Mathematics
1 answer:
motikmotik3 years ago
7 0

Answer:

It’s the third ans

Step-by-step explanation:

You might be interested in
Solve system by subsubstitution?<br> 14x-2y=46<br> -7x+y=-23
e-lub [12.9K]
14x-2y=46 \\&#10;-7x+y=-23 \\ \\&#10;\hbox{solve the 2nd equation for y:} \\&#10;-7x+y=-23 \\&#10;y=7x-23 \\ \\&#10;\hbox{substitute 7x-23 for y in the 1st equation:} \\&#10;14x-2(7x-23)=46 \\&#10;14x-14x+46=46 \\&#10;14x-14x=46-46 \\&#10;0=0 \\ \\&#10;\boxed{\hbox{infinitely many solutions}}
8 0
3 years ago
A field bordering a straight stream is to be enclosed. The side bordering the stream is not to be fenced. If 1000 yards of fenci
sveta [45]

Answer:

x  =  500 yd

y  =  250 yd

A(max) = 125000 yd²

Step-by-step explanation:

Let´s call x the side parallel to the stream ( only one side to be fenced )

y the other side of the rectangular area

Then the perimeter of the  rectangle  is  p  =  2*x  + 2* y  ( but only 1 x will be fenced)

p  =  x  +  2*y

1000  =  x   +  2 * y         ⇒    y  =  (1000 - x )/ 2

And   A(r)  =  x * y

Are as fuction of x

A(x)  =  x  *  (  1000  -  x ) / 2

A(x)  =   1000*x / 2 -  x² / 2

A´(x)  =  500  -  2*x/2

A´(x)  =  0              500   -  x   =  0

x  =  500 yd

To find out if this value will bring function A to a maximum value we get the second derivative

C´´(x)  =  -1         C´´(x) < 0  then efectevly we got a maximum at  x  = 500

The side  y  = ( 1000  -  x ) / 2

y  =  500/ 2

y  =  250 yd

A(max)  =  250 * 500

A(max) = 125000 yd²

3 0
2 years ago
PLEASE SOMEONE HELP ME
kow [346]

Answer:

1/5 is not greater than 2/7 because 1/5 = 7/35 and 2/7 = 10/35.

7 0
3 years ago
Read 2 more answers
Higher Order Thinking What is the<br>least multiple 6 and 8 have in common?<br>Explain.​
Dahasolnce [82]

Answer: 24

Step-by-step explanation:

6, 12, 18, 24

8, 16, 24

3 0
3 years ago
Read 2 more answers
A conversion factor can be written _________ different ways. How do you select the most appropriate conversion factor?
DochEvi [55]

Answer:

can be written two ways

Step-by-step explanation:

A conversion factor is written based on the equality between the two units

5 0
3 years ago
Read 2 more answers
Other questions:
  • The height of a parallelogram is 4.5 CM the base is twice the height what is the area
    11·1 answer
  • If the mean of the observations x1, x2....,xn is ,
    14·1 answer
  • PLEASE HELP PERSONAL FINANCE / LAUNCH QUESTION
    8·1 answer
  • Disadvantage and advantage​
    5·1 answer
  • What is the HCF and LCM of 18,30 and 48​
    6·1 answer
  • I WILL GIVE BRAINLIEST Which of the following tables of x– and y–values represents a function? Select all that apply.
    14·1 answer
  • Can someone help me pls
    11·1 answer
  • Figure ABCD has vertices A(−2, 3), B(4, 3), C(4, −2), and D(−2, 0). What is the area of figure ABCD?
    7·2 answers
  • Is this correct? Yes or no, and explain your answer.
    14·1 answer
  • Which graph represents the equation y = – (x – 1)2 + 1?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!