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
ipn [44]
2 years ago
13

HELP WITH NUMBER 13 please

Mathematics
1 answer:
amid [387]2 years ago
4 0

Answer: QE = 10

Step-by-step explanation: To solve this problem, it's important to understand that the diagonals of a parallelogram bisect each other.

This means that E is the midpoint of diagonal SQ.

So we can setup the equation x² + 9x = 4x + 6.

To solve this polynomial equation, set it equal to zero first.

So we have x² + 5x - 6 = 0 and we get (x + 6)(x - 1) = 0

when we factor the left side of the equation.

So this means that x = -6 or x = 1.

However, -6 will give us a negative length when we plug it in

to find QE so this will not work.

However, plugging 1 in will give us 10 as a length so QE = 10.

You might be interested in
Hi! I cant figure this out... could someone please help me?
Fed [463]

Answer:

Step-by-step explanation:

open circle on -4 and open circle on 4 and a line connecting them

6 0
3 years ago
3x+15y=7. Solve for Y
AleksAgata [21]
Your answer is Y= -x\5+7\15
5 0
3 years ago
Read 2 more answers
Find the centroid for an area defined by the equations y = x² + 3 and y = - (x – 2)² + 7
meriva
The points where the 2 graphs intersect is  where x = 0 and x = 2.

-                 2                                  2
x   =    INT               x dA     /    INT        dA
                  0                                  0

INT dA   = INT -x^2 + 4x + 3 - (x^2 + 3 ) dx  =      INT -2x^2  + 4x
               =   -2 x^3/3 + 2x^2
               =   2.667  between 0 and 2

xdA  =   -2x^3 + 4x^2  INT xdA  =   -x^4/2 + 4x^3/3 = 2.667

centroid = 2.667 / 2.667  = 1  (x = 1)
3 0
3 years ago
Read 2 more answers
if every child took 12 apples,there would be three left.if each childtook 9 apples,there would be 21 apples left how many apples
White raven [17]
Multiples of 12 : 12 , 24 , 36 , 42 , 60 , 72 , 84 , 96 , 108 , 120
3 left  (+3)        : 15 , 27 , 39 , 45 , 63 , 81 , 87 , 99 , 111 , 123

Multiples of 9   : 09 , 18 , 27 , 36 , 45 , 54 , 64 , 72 , 81 , 90
21 left  (+21)    : 30 , 39 , 48 , 57 , 66 , 75 , 85 , 93 , 102, 111

----------------------------------------------------------------
Answer : There are 111 apples 
----------------------------------------------------------------
5 0
2 years ago
Can someone help me with one question please And fast
m_a_m_a [10]

Answer:

equal to 4

Step-by-step explanation:

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

5 0
2 years ago
Read 2 more answers
Other questions:
  • The perimeter of a rectangular photograph is 28 inches. If the width of the photo is 5 inches, how tall is the photo?
    10·2 answers
  • I do not know how to draw this in full scale​
    15·1 answer
  • A cylindrical storage vessel is 7cm in diameter and 6m long. Find its volumes.
    14·1 answer
  • The graph of the quadratic $y = ax^2 + bx + c$ is a parabola that passes through the points $(-1,7)$, $(5,7)$, and $(6,10)$. Wha
    15·2 answers
  • What kind of transformation is represented by the following rule?
    12·2 answers
  • Ana buys a sweater for $25.60, and it is on sale for 35% off. What is the amount of the discount?
    9·2 answers
  • Help please thanks very much
    7·1 answer
  • If triangle abc = triangle XYZ which is true
    5·1 answer
  • Review the graph of function g(x).
    6·1 answer
  • Hihi guys what's popping comment on the top right below my question
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!