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
Sloan [31]
3 years ago
15

I don't understand how to solve this

Mathematics
1 answer:
Trava [24]3 years ago
8 0
X^2+81=4x^2
3x^2=81
x^2=27
x=(27)^0.5
You might be interested in
(a) An angle measures 27°. What is the measure of its complement?
larisa [96]

Answer:

a) 63°

b) 127°

Step-by-step explanation:

Complements are 90° while supplements are 180°.

So you need to find the complement of 27°. So, 90-27=63

To find the supplement, it is 180-53=127

6 0
3 years ago
PLS HELP WITH ALL 7!!! (SHOW WORK FOR ALL!!!) + LOTS AND LOTS OF POINTS!! (MUST BE CORECCT! & DONT ANSWER FOR POINTS!! If u
NikAS [45]
So i only got to get 1 & 2
1. 7a+10
2. 5b - 2
sorry the others were hard
4 0
4 years ago
Please help <br><br> Thank you
san4es73 [151]

Answer:

m ∠JPN = 131°    

Step-by-step explanation:

m ∠JPL = m ∠MPK                         Vertical angles are =

7x + 19 = 11x -17                               Substitution  

- 4x =  -36                                      Algebra: Solving for x

   x = 9                                           Algebra: Solving for x

 m ∠JPL = 82°                              Substitution x = 9 into m ∠JPL = 7x +19

m ∠JPL + m ∠LPK = 180°             Definition of linear pair/supplement

                                                     angles = 180°

82° + m ∠LPK = 180°                      Substitution    

            m ∠LPK = 98°                     Algebra

m ∠LPK = m ∠LPN + m ∠NPK        Angle addition Theorem

       PN bisects ∠LPK                     Given    

m ∠LPN = m ∠NPK                          Definition of angle bisector

98 ° = 2 ( m ∠LPN)                           Substitution  

    m ∠LPN = 49°                             Algebra

m ∠JPN = m ∠JPL + m ∠LPN         Angle Addition

 m ∠JPN = 82° + 49°                     Substitution  

m ∠JPN = 131°                                 Addition    

7 0
2 years ago
Please help. thank you
Ne4ueva [31]

Answer:6 units^2

Cut the shape in two to make a square and triangle.

Square:(2)(2)=4

Triangle:(1/2)(2)(2)=2

add both together 4+2=6

3 0
3 years ago
Read 2 more answers
What is 10+10, thanks,
Keith_Richards [23]

Answer:

20

Step-by-step explanation:

  10

+ 10

--------

1+1 = 2 and the 0 to the end to get 20

7 0
3 years ago
Read 2 more answers
Other questions:
  • What is the area, rounded to the nearest tenth of square inch, if an equilateral that has a perimeter of 24 inches?
    5·1 answer
  • −6 − 3 = −18 <br> Find the y intercept
    9·1 answer
  • Which operation does the term "fewer than" refer to?
    10·2 answers
  • Make a figure that contains three triangles a parallelogram and a trapezoid using seven congruent line segment
    8·1 answer
  • Is 21 a prime number?
    6·2 answers
  • Tom put 18 gallons of mid grade gas in his truck and filled up his empty five gallon gas tank with regular gas for his lawn mowe
    14·1 answer
  • -10(10x2 + 5) = -5x² – 14
    10·1 answer
  • johanna is trying to find the probability that a cup will land open end up. she takes the cupand tosses it in the air 100 times
    15·2 answers
  • A customer calculated the cost of a new jacket, c, including a 7% sales
    14·1 answer
  • Bob's Bagels sells 7 bagels for $8.00, and Betty's Bagels sells 9 bagels
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!