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
kumpel [21]
2 years ago
15

I need help!!!! The square below has the given side lengths. x is positive

Mathematics
2 answers:
Allisa [31]2 years ago
7 0

Answer:

See below, please

Step-by-step explanation:

This square

3 {x}^{2}  + 6x + 7 = 2 {x}^{2}  - 2x + 27

(3 {x}^{2}  - 2 {x}^{2} ) + (6x  +  2x) + (7 - 27) = 0

{x}^{2}  + 8x - 20 = 0

(x + 10) \times (x - 2) = 0

Hence,

x1 =  2

x2 =  - 10

Because x is positive, So,

x = 2

Then we know

The length of one of the sides

= 3 {x}^{2}  + 6x + 7 = (3 \times  {2}^{2})  + (6 \times 2) + 7 = (3 \times 4) + 12 + 7 = 31

The area of the square

=  {31}^{2}  = 961

The perimeter of the square

= 31 \times 4 = 124

Hoochie [10]2 years ago
5 0

Answer:

Value of X: X=2

Length of One Side: 31

Area: 961u^2

Perimeter: perimeter = 124

Step-by-step explanation:

Set the sides equal to each other, simplify and then use quadratic equation. One result is positive and the other is negative, shape's sides have to be positive so use the positive value for X.

You might be interested in
Jada Elena and Lin walked a total of 37 miles last week. jada walked 4 more miles that elena, and Lin walked 2 more miles than j
MA_775_DIABLO [31]

Answer:

Jada walked 13\ miles

Elena walked 9\ miles

Lin walked 15\ miles

Step-by-step explanation:

Let

x----> total miles walked by Jada

y----> total miles walked by Elena

z----> total miles walked by Lin

we know that

x+y+z=37 -----> equation A

x=y+4 -----> y=x-4 ------> equation B

z=x+2 ------> equation C

Substitute equation C and equation B in equation A and solve for x

x+(x-4)+(x+2)=37

3x=37+2

3x=39

x=13\ mi

Find the value of y

y=13-4=9\ mi

Find the value of z

z=13+2=15\ mi

therefore

Jada walked 13\ miles

Elena walked 9\ miles

Lin walked 15\ miles

3 0
3 years ago
#11 (Angles with Equations) In the figure below, 2POR is 180°.
lina2011 [118]

Answer:

55

Step-by-step explanation:

The three angles form a straight line, so they add to 180.

x + x + 70 = 180

Combine like terms

2x+70 =180

Subtract 70 from each side

2x+70-70 =180-70

2x= 110

Divide by 2

x = 55

SQT = x

So SQT = 55

4 0
3 years ago
A(x) = x( 48 - x)<br> When is A(x) at its maximum?<br> Explain or show how you know.
krek1111 [17]

Answer:

When X = 24

Step-by-step explanation:

Use derivative to locate the turning point.

48 - 2X = 0, => X = 24

4 0
2 years ago
Please can someone help me?
Debora [2.8K]
If the perimeters are equal, you can form an equation to find x:
x + x + 12 + x + x + 12 = x + 11 + x + 11 + x + 16
4x + 24 = 3x + 38
- 3x
x + 24 = 38
- 24
x = 14
Now you can substitute the x value into the perimeter:
(4 × 14) + 24
56 + 24 = 80 cm

(3 × 14) + 38
42 + 38 = 80 cm

So the perimeter would be 80 cm.
I hope this helps!
6 0
3 years ago
Which of the following is equivalent to the expression:
Alecsey [184]
<span>Selection A is correct</span>
4 0
3 years ago
Other questions:
  • Last year I read 150 books. My brother read 170 books more books than I did. How many books did my brother read?​
    12·2 answers
  • Can someone please help me with question 9
    12·1 answer
  • Solve: 89-4h=57-4h<br><br> Thanks
    6·2 answers
  • What is the pitch of the roof of a
    9·1 answer
  • Use the distributive property to fill in the blanks below.
    10·2 answers
  • How would I solve this. <br> If you answer I will give brainliest.
    5·1 answer
  • QUICK IG? GIVING BRAINLIEST TO THE PERSON WHO ANSWERS
    5·1 answer
  • (-8, 4), (4, -4)<br> Write in standard form
    13·2 answers
  • Please help. Im dying for the explanation. I will mark you brainalist.
    6·1 answer
  • How to solve this problem for my algebra class
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!