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
sineoko [7]
2 years ago
5

How do i do this. will give brainliest

Mathematics
1 answer:
Tomtit [17]2 years ago
4 0

Try this option ↓

Step-by-step explanation:

1) according to the condition two angles are equal, then two sides are equal also, it means

2) √x+4=√(5x+4);

3) the 'x' can be calculated if to solve this equation:

\sqrt{x} +4=\sqrt{5x+4};

x+16+8\sqrt{x} =5x+4;

4x-12=8\sqrt{x} ;\ => \ x-2\sqrt{x} -3=0;

\left \{ {{\sqrt{x} =-1} \atop {\sqrt{x} =3}} \right. \ => \ x=9.

4) finally, answer: 9.

You might be interested in
A triangle has side lengths of 9 in, 13 in, and 20 in. What is the measurement of this triangle's largest angle?
Rama09 [41]

1. Given any triangle ABC with sides BC=a, AC=b and AB=c, the following are true :

     i) the larger the angle, the larger the side in front of it, and the other way around as well. (Sine Law) Let a=20 in, then the largest angle is angle A.

      ii) Given the measures of the sides of a triangle. Then the cosines of any of the angles can be found by the following formula:

       a^{2}=b ^{2}+c ^{2}-2bc(cosA)

2.

20^{2}=9 ^{2}+13 ^{2}-2*9*13(cosA)

400=81+169-234(cosA)   150=-234(cosA)

cosA=150/-234= -0.641

3. m(A) = Arccos(-0.641)≈130°,

4. Remark: We calculate Arccos with a scientific calculator or computer software unless it is one of the well known values, ex Arccos(0.5)=60°, Arccos(-0.5)=120° etc

6 0
3 years ago
Read 2 more answers
Beth works at a grocery store. She earns $8 per hour for her first 20 hours of work in a week. She earns $11 per hour for workin
aleksandr82 [10.1K]

Answer:

the 2nd graph

*this is my first time answering a question xd*

3 0
3 years ago
In the diagram below, PQ and RS are parallel. Based on the angle measures in the diagram, what is the value of X?
Butoxors [25]

Answer:

x would be equal to 70 grades

Step-by-step explanation:

The angle QRS is equal to 180 - 130 = 50 grades.

We add up that with the other 60 grades on the left, and we encounter ourselves with a simple equation:

60 + x + 50 = 180

x = 70

Hope this was helpful

4 0
2 years ago
The freezing temperature of nitrogen is -210°C, and the freezing temperature of oxygen is -223°C. Which temperature is colder?
olasank [31]

Answer:

-223

Step-by-step explanation:

-210<-223

4 0
2 years ago
Read 2 more answers
An ice cream company produces approximately 6 x 10 fits half gallons of strawberry ice cream month at the same time they produce
balu736 [363]
They make about 30 more gallons of ice cream
7 0
3 years ago
Read 2 more answers
Other questions:
  • 8/20 as a decimal and each fraction in simplest form
    7·1 answer
  • A home improvement store sold wind chimes for $30 each.A costumer signed up for a free membership card and recieved a 5% discoun
    11·2 answers
  • I need help with this
    7·1 answer
  • Please help me with this math problem.
    5·1 answer
  • Solve forx:<br> 3x + 128<br> 3x +22
    10·1 answer
  • What is the elasped time 9:00- 4:30
    14·2 answers
  • Graph y-4=2x and identify<br> the slope and y-intercept.
    11·2 answers
  • A 150-pound person plans to jump off a ledge attached to a cord of length 42 feet. If the
    12·1 answer
  • PLZ ONLY TYPE IN SSS , ASA, SAS, AAS, HL) IF<br> the triangles are not congruent, type in NEI
    8·1 answer
  • If you get this correct I will give you brainlest 5 stars and thanked please help on it
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!