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
Alona [7]
3 years ago
5

Find the approximate solution(s) to each of the following equations graphically. Use technology to support your

Mathematics
1 answer:
ser-zykov [4K]3 years ago
4 0

Answer: x" = 5.69

Step-by-step explanation:

The graphic solution is attached.

Verifying the solution:

Existence condition: x > 0

2x - 4 = √x + 5

√x =2x - 4 - 5

√x =2x - 9 (²)

x = (2x - 9)²

x = 4x² - 36x + 81

4x² - 36x - x + 81 = 0

4x² - 37x + 81 = 0

Δ = -37² - 4.4.81 = 1369 - 1296 = 73

x = 37 ±√73/8                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          

x' = 3.55

x" = 5.69

checking:

2*3.55 - 4 = 3.1

√3.55 + 5 = 6.88 Its not the same ∴ 3.55 is not a solution

2*5.69 - 4 = 7.39

√5.69 + 5 = 7.39 ∴ it's the only solution

You might be interested in
Pls help I need this answer ​
jasenka [17]

Answer:

idrink some water i guess

8 0
3 years ago
In 12 hours, the temperature fell steadily from 17degrees to -7degrees f. what was the average change in temperature per hour?
Zarrin [17]
If the temperature changed from 17 degree F to -7 , the change was
17+7=24 degrees F
the average change was 24/12=2 , 2 degrees per hour 
<span />
7 0
3 years ago
The expression 20a + 13c is the cost (in dollars) for adults and students to enter a science center. Find the total cost for 4 a
lapo4ka [179]

Answer:

$392

Step-by-step explanation:

Given the expression :

Total cost = 20a + 13c

a = adult

c = student

The total cost for 4 adults and 24 students

a = 4 ; c = 24

Total cost :

20(4) + 13(24)

80 + 312

= $392

3 0
3 years ago
What is the value of the expression below when x=8? 10x+5
DaniilM [7]
1. Plug in 8 into x.
The equation will be 10(8)+5
2. Solve multiplication
80+5
3. The answer is 85! Hope this helped <3
8 0
4 years ago
Three and five sixths minus seven and one half​
Kryger [21]

Answer: -3.66666666667 or negative three and six tenths repeating.

8 0
3 years ago
Other questions:
  • A clown has 63 blue balloons and 45 red balloons. The clown arranges the balloons into groups that have the same ratio of blue b
    12·2 answers
  • PLEASE ANSWER FAST! 20 POINTS+BRAINLIEST!!!
    12·2 answers
  • you and a friend of your choice are driving to the island of chincoteague in virginia in two different cars. you are traveling 6
    12·1 answer
  • Evaluate the integral. pls help me see the steps. thank you​
    7·1 answer
  • A random sample from the 6th and 7th grade student population was taken to determine which clubs were the most popular. Use the
    8·1 answer
  • How do the equations y = mx and y =kx compare plz help me bad answers will be reported
    6·2 answers
  • 1. Marla coloured 1/4 of a picture, and Suman painted some, too. When they were finished, 2/3 of the picture still needed to be
    14·1 answer
  • HELP PLEASE<br><br> Solve 3 + 4x &gt; –5 for x.
    7·2 answers
  • Write this in expression: Three less than five times a number....Use x for the number i will give out points to whoever answers
    5·1 answer
  • What is the gradient of the blue line
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!