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
Lilit [14]
3 years ago
13

What the solution set (x+9)^2=169 of this quadratic equations by extracting the roots? ​

Mathematics
1 answer:
Svetach [21]3 years ago
6 0

Answer:

x = - 22, x = 4

Step-by-step explanation:

Given

(x + 9)² = 169 ( take the square root of both sides )

x + 9 = ± \sqrt{169} = ± 13 ( subtract 9 from both sides )

x = - 9 ± 13

Thus

x = - 9 - 13 = - 22

x = - 9 + 13 = 4

You might be interested in
Which of the following inequalities represents a solution set that has the
DerKrebs [107]

Answer:

2.) 4x +7 > -5

Step-by-step explanation:

because

4x +7 > -5

4x > -5-7

4x > -12

x > -3

hope it will help you

plz follow me

8 0
3 years ago
Explain step by step =) Harry rides his bike 25 3/8 miles. Karen rides her bike 25 2/5 miles. Who rides farther?
Alex
To answer this question we need to use subtraction. 
we need to make the denominators the same. 
In order to make them the same we need to find the least common multiple, of 8 and 5. 
The least common multiple(the smallest shared value of the two numbers) is 40. 

Next we divide our old denominator 5 by 40, which gives us 8, we multiply 8 by the numerator 2, which gives us 16. So now we have 16/20. We have to do the same to the other side. 8÷40 = 5.  5 x 3 = 15. Now we have 15/20.

Now we have a brand new equation, 16/40 - 15/40. The answer is 1/40. 
In a fraction the answer is 1/40, so Karen rides her bike further. 

In decimal form the answer is 0.025. 

I hope this helps!

4 0
3 years ago
Simplify this expression.<br><br> 20.25−912+11
DIA [1.3K]

Answer:

-880.75

Step-by-step explanation:

Subtract 912 from 20.25 first then add 11.

7 0
4 years ago
Read 2 more answers
Help me with this!! I will mark Brainliest!!!
user100 [1]

Answer:

1...-

Step-by-step explanation:

7 0
3 years ago
A circular fishpond has a result of 2.5m what is the area of the fishpond?
sattari [20]

Answer:

19.63 {m}^{2}

<h3>3rd answer is correct</h3>

Step-by-step explanation:

\pi {r}^{2}  \\ \pi \times 2.5 \times 2.5 \\  = 19.63 {m}^{2}

8 0
3 years ago
Other questions:
  • 6. If X is the midpoint of WY, WX = 3x - 1 and<br> WY = 10x – 26, find XY.
    7·1 answer
  • HURRY. Which sequence of transformations could map TRIANGLE ABC
    6·2 answers
  • A woman put $580 into a savings account for one year. The
    14·1 answer
  • A streaming music site changed its format to focus on previously unreleased music from rising artists. The site manager now want
    9·1 answer
  • Solve the equation a = m – n for the variable n
    15·2 answers
  • Christopher recorded the low temperature each day for 1 week and recorded his results in this table.
    8·2 answers
  • How do i solve this pls help me i got 30 mins left :(
    9·1 answer
  • The area of the square is 100 square centimeters. What is the area of the circle?
    8·2 answers
  • A scale drawing of a school bus has a scale of 1/2 inch to 5 feet. If the length of the school bus is 4 1/2 inches on the scale
    5·1 answer
  • Given the function h of x equals three times the square root x plus 1 end root minus 2, which statement is true about h(x)? The
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!