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
igor_vitrenko [27]
3 years ago
7

Please answer correctly !!!!!!!! Will mark brainliest answer !!!!!!!!!!!!

Mathematics
1 answer:
lbvjy [14]3 years ago
6 0

Answer:

it was X =5

Step-by-step explanation:

You might be interested in
You have 42 ft. of fencing (1 ft. segments) to make a rectangular garden. How much should each side be to maximize your total ar
Verizon [17]

Answer:

Length=10.5\ ft

Width=10.5\ ft

Area=110.25\ ft^{2}

Step-by-step explanation:

Let

x----> the length of the rectangular garden

y---> the width of the rectangular garden

we know that

The perimeter of the rectangle is equal to

P=2(x+y)

we have

P=42\ ft

so

42=2(x+y)

simplify

21=(x+y)

y=21-x------> equation A

Remember that the area of rectangle is equal to

A=xy ----> equation B

substitute equation A in equation B

A=x(21-x)

A=21x-x^{2}----> this is a vertical parabola open downward

The vertex is a maximum

The y-coordinate of the vertex is the maximum area

The x-coordinate of the vertex is the length side of the rectangle that maximize the area

using a graphing tool

The vertex is the point (10.5,110.25)

see the attached figure

so

x=10.5\ ft

Find the value of y

y=21-10.5=10.5\ ft

The garden is a square

the area is equal to

A=(10.5)(10.5)=110.25\ ft^{2} ----> is equal to the y-coordinate of the vertex is correct

6 0
3 years ago
A system of equations is given below:
My name is Ann [436]
Solving by substitution:

y = 4x - 3 

2x + 7y = 41

Let us substitute the first equation y = 4x - 3  into the second.

2x + 7y = 41

2x + 7(y = 4x -3) = 41

2x + 7(4x -3) = 41

So that's the third option.

I hope this helps.
4 0
3 years ago
Read 2 more answers
CB = 4, CA = 11 , and CE = 8 , what is the length of overline ET ?
erma4kov [3.2K]
  • AB=11-4=7

\\ \rm\hookrightarrow \dfrac{BC}{AB}=\dfrac{CE}{ET}

  • ET be x

\\ \rm\hookrightarrow \dfrac{4}{7}=\dfrac{8}{x}

\\ \rm\hookrightarrow 4x=56

\\ \rm\hookrightarrow ET=x=14

8 0
2 years ago
Question 2.what is the probability that between 80 and 115 complaints are received in one week? use a n(110,20) model to approxi
AURORKA [14]

Calculate standard  Z values for the given data:-

z = (80 - 110) / 20 = - 3/2 = -1.5

and z = (115 - 110) / 20 =  0.25

so we need  Prob ( -1.5 < z < 0.25)

Using standard tables this  comes to 0.5319  Answer


6 0
3 years ago
Use the distance formula to answer the question:<br> What is the distance between (5,9), (1, 6)?
joja [24]

Step-by-step explanation:

The formula is Distance=√(x2-x1)²+(y2 -y1)²

x1 is 5, x2 is 1, y1 is 9, y2 is 6

D = √( 1-5)² +(6-9)²

D = √(-4)²+(-3)²

D = √16+9

D = √25

D = 5 units

3 0
2 years ago
Other questions:
  • Solve y = 7x-3w for x
    5·2 answers
  • ASAP Plz what is the value of x? Plz no joking around this is from quiz 4.09: Special Right Triangles 2
    15·2 answers
  • 6x + 2x - 3 what is the answer
    7·1 answer
  • Is 100 a reasonable estimate 915.25 divided by 88.22
    9·1 answer
  • Let b be a real number. For what value of b does the function f(x)=x^2-2bx+(b^2+2b-1) have one and only one x-intercept?
    11·1 answer
  • Write this number in expanded form 2,015,473,
    11·1 answer
  • Write six-thousandths in standard form
    5·2 answers
  • Let X and Y be independent positive random variables. Let Z = X/Y.In what follows, all occurrences of x, y, z are assumed to be
    14·1 answer
  • BRAINLY TO WHOEVER HELPS AND GET IT RIGHT<br><br> ~no links pls~
    12·1 answer
  • Symbolize and Solve Equations
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!