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
aniked [119]
4 years ago
13

Which of the following is a solution of x2 − 10x = −36? (6 points)

Mathematics
1 answer:
Softa [21]4 years ago
6 0

Answer:

D

Step-by-step explanation:

Given

x² - 10x = - 36

Solve using the method of completing the square

add ( half the coefficient of the x- term )² to both sides

x² + 2(- 5)x + 25 = - 36 + 25

(x - 5)² = - 11 ( take the square root of both sides )

x - 5 = ± \sqrt{-11} ( add 5 to both sides )

x = 5 ± i\sqrt{11}

Thus

x = 5 - i\sqrt11} or x = 5 + i\sqrt{11}

You might be interested in
I need help with number 1
Marianna [84]

Answer:

1a. 0< -4 false

1b. -3> or = -7 true

1c. 4<= -1/2 false

8 0
3 years ago
**PLS HELP**
nadezda [96]

Answer:

I think d equation most. closely represents

4 0
3 years ago
Urgent Help math question!
Stella [2.4K]
Answer: Choice A

This is a 3 by 1 matrix, which can be written "3 x 1 matrix". 

There are 3 rows and 1 column. The number of rows is listed first. 
7 0
3 years ago
Emily is entering a bicycle race for charity. Her mother pledges $0.40 for every 0.75 miles she bikes. If Emily bikes 21 miles,
lora16 [44]

Answer:

Her mother will donate $11.20

Step-by-step explanation:

  • $0.40 every 0.75 miles.
  • 21 miles biked.

Step 1: Figure out how many 0.75 increments are in 21 miles.

21 ÷ 0.75 = 28

  • There are 28 increments of 0.75 in 21 miles.

Step 2: Multiply 28 by $0.40

28 * $0.40 = $11.20

4 0
3 years ago
Read 2 more answers
Marisa gets paid $50 for 5 hours of work and charges an initial fee of $13
Vitek1552 [10]

Answer:

whats the question

10 dollars an hour ?

63 dollars total ?

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • you have learned about the associative (grouping ) property of addition. it says that you can group add ends in any way and sum
    9·1 answer
  • Georgia lifts free weights. The bar weighs 25 pounds. She puts two 25 pound weights and two 10 pound weights on the bar. How muc
    9·1 answer
  • Which has the greater rate of change (slope)
    5·2 answers
  • What is this in simplest form?
    8·2 answers
  • The price of a television was reduced $250 to $200. By what percentage was the price of the television reduced
    14·1 answer
  • If anyone can help me out I would truly appreciate it <br> Please show me step by step
    12·1 answer
  • Please answer and put the expanation in to be marked branliest. Thank you!!
    15·2 answers
  • Given f(x) = 3x – 2, find f(-5).
    15·2 answers
  • Whats the are and perimeter for this pls help
    11·1 answer
  • -19x-17 = -93 <br> Also when you solve it has to be with the addition property of equality
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!