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
Eva8 [605]
2 years ago
11

I need help please!!!

Mathematics
1 answer:
just olya [345]2 years ago
8 0

Answer:

  JM = 7

Step-by-step explanation:

Triangles LMN and LJK are similar, so corresponding sides have teh same ratio:

  LM/MN = LJ/JK

  14/(JM+3) = (14 +JM)/15

  210 = (JM +3)(JM +14) . . . . . multiply by 15(JM +3)

  JM² +17JM -168 = 0 . . . . . . . subtract 210; put in standard form

  (JM +24)(JM -7) = 0 . . . . . . factor

The values for JM that make this true are 7 and -24. The length must be positive, so ...

  JM = 7

You might be interested in
WILL GIVE A BRAINLEST!!!!!!
Andrej [43]
We have that
<span>(c-4)/(c-2)=(c-2)/(c+2) - 1/(2-c)
 </span>- 1/(2-c)=-1/-(c-2)=1/(c-2)

(c-4)/(c-2)=(c-2)/(c+2)+ 1/(c-2)------- > (c-4)/(c-2)-1/(c-2)=(c-2)/(c+2) 
(c-4-1)/(c-2)=(c-2)/(c+2)---------------- > (c-5)/(c-2)=(c-2)/(c+2)

(c-5)/(c-2)=(c-2)/(c+2)------------- > remember (before simplifying) for the solution that c can not be 2 or -2
(c-5)*(c+2)=(c-2)*(c-2)------------------ > c²+2c-5c-10=c²-4c+4
-3c-10=-4c+4----------------------------- > -3c+4c=4+10----------- > c=14

the solution is c=14
 
the domain of the function is (-∞,-2) U (-2,2) U (2,∞) or 
<span>all real numbers except c=-2 and c=2</span>


5 0
2 years ago
Read 2 more answers
Solve on the interval [0,2pi): 2cscx+5=1
pantera1 [17]

x\in[0,\ 2\pi)\\\\2\csc x+5=1\ \ \ \ |-5\\\\2\csc x=-4\ \ \ \ |:2\\\\\csc x=-2\\\\\dfrac{1}{\sin x}=-2\to\sin x=-\dfrac{1}{2}\to x=-\dfrac{\pi}{6}+2k\pi\ \vee\ x=\dfrac{7\pi}{6}+2k\pi\\\\x\in[0,\ 2\pi)\to x=-\dfrac{\pi}{6}+2\pi=\dfrac{11\pi}{6}\ \vee\ x=\dfrac{7\pi}{6}\\\\Answer:\ \boxed{D.\ \dfrac{7\pi}{6},\ \dfrac{11\pi}{6}}}

7 0
2 years ago
Read 2 more answers
The top of a rectangular table has an area of 11 square feet. It has a length that is 3.5 feet more than the width. Find the dim
pashok25 [27]

Step-by-step explanation:

If we let the width be w, then the length is w+3.5.

This means that w(w+3.5)=11

w^2 + 3.5w - 11 = 0

2w^2 + 7w - 22 = 0 (multiply both sides by 2)

(2w+11)(w-2)=0

w = -11/2 or w = 2 (disregard w = -11/2 as distance is positive)

This means that w=2, and thus the length is 2+3.5=5.5

3 0
1 year ago
What is equivalent to 6/8
Liono4ka [1.6K]
3/4 is the reduced form, also 12/16 is each doubled
3 0
3 years ago
Read 2 more answers
( 7x + 2x - 3x2 + 9x) + (5x + 8x2 - 6x2 + 2x - 5)​
Elena-2011 [213]

Answer:

-x2+25x-5

Step-by-step explanation:

7x+2x−3x2+9x+5x+8x2−6x2+2x−5

=−x2+25x−5

3 0
3 years ago
Other questions:
  • What is a two-dimensional Figure
    7·2 answers
  • Find the slope and y-intercept of the line that is parallel to y = 3x - 3 and passes through the point (-2,-7)
    5·1 answer
  • What is -1/2+(3/4×4/9)? I need help!please asap give me the answer
    14·1 answer
  • What is the circumference of a circle that has a radius of 7 m?
    11·1 answer
  • Write a polynomial function p(x) with x-intercepts at -1,4, and -5
    5·1 answer
  • Which of the following rates converts to a unit rate of $12.50 per hour?
    10·1 answer
  • Find the area of the figure below.<br> 6 in.<br> 5 in.<br> 4 in.
    14·1 answer
  • Find the measure of angle A.
    11·1 answer
  • Can you please help me ?
    15·2 answers
  • Add them all with explanation please
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!