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
Alekssandra [29.7K]
3 years ago
6

Apply the square root principle to solve (x-5)^2-40=0

Mathematics
1 answer:
Nitella [24]3 years ago
4 0

Answer: {5 ± 2√10, 5 - 2√10}

Step-by-step explanation: First isolate the binomial squared by adding 40 to both sides to get (x - 5)² = 40.

Next, square root both sides to get x - 5 = ± √40.

Notice that root of 40 can be broken down to 2√10.

So we have x - 5 = ± 2√10.

To get <em>x</em> by itself, add 5 to both sides to get x = 5 ± 2√10.

So our answer is just {5 ± 2√10, 5 - 2√10}.

As a matter of form, the number will always come before the

radical term in your answer to these types of problems.

In other words, we use 5 ± 2√10 instead of ± 2√10 + 5.

You might be interested in
Help me it’s due at 12 I’ve been doing this for 3 days now
Lemur [1.5K]

Answer:

tan(C) = √3/√2

Step-by-step explanation:

First, using Pythagorean Theorem, find AC.

=> AC = √(3√5)² - (3√3)²

=> AC = √45 - 27

=> AC = √18

=> AC = 3√2

tan C = 3√3/3√2

= √3/√2

7 0
2 years ago
Which equation has no real solutions?
Varvara68 [4.7K]

Answer:

C is the answer

Step-by-step explanation:

5 0
3 years ago
What is the volume of a rectangular prism that is 3 cm by 7 cm by by 7 cm?
natali 33 [55]

Answer:

147 cm^{3}

Step-by-step explanation:

7*7*3 = 147

volume of a rectangular prism = length*width*height, in this case, 7*7*3

hope this helps :)

3 0
3 years ago
Which set of three angles could represent the interior angles of a triangle?
Tamiku [17]

Answer: A

Step-by-step explanation:

26+51+103=180(sum of internal angle of triangle)

8 0
3 years ago
Answer the question in the image below
umka21 [38]

Answer:

B. m\geq 2\frac{1}{2}

Step-by-step explanation:

m\geq \frac{5}{2}

6 0
3 years ago
Other questions:
  • (8) = ཏ - (x + 3)<br> what is the value of 8
    10·1 answer
  • The system of equations is graphed on the coordinate plane.
    13·1 answer
  • Robin earned $4,320 in 9 weeks. How much did he earn working for a full year? (Assume Robin worked 50 weeks during the year.)
    5·2 answers
  • Find the axis of symmetry of this parabola y=-x^2-2x-5 write your answer as an equation
    8·1 answer
  • Simplify 6000-1600 what I'd the answer
    12·1 answer
  • Simplify each radical expression. sqrt 7 ( sqrt 14 + sqrt 3 )
    7·1 answer
  • Early diagnosis and treatment of malaria are necessary components in the control of malaria. The gold-standard light microscopy
    7·1 answer
  • What positive or negative integer represents you descending 15 feet into a cave?
    8·1 answer
  • A manager samples the receipts of every fifth person who goes through the line. Out of 50 people, 5 had a mispriced item. If 1,0
    6·1 answer
  • Plz help i will give brainiest <br> Graph the arithmetic sequence -1,-3,-5,-7,
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!