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
denis23 [38]
2 years ago
15

The problem is in the picture ​

Mathematics
1 answer:
Charra [1.4K]2 years ago
4 0

Answer:

x = 3 or 7

Step-by-step explanation:

Solve by completing the square:

x^2 - 10x + 1 = -20

First, move the constants to one side:

x^2 - 10x = -21

Then, add (\frac{-10}{2})^2 to both sides to make the right a perfect square trinomial, which is easy to factor:

x^2 - 10x + (\frac{-10}{2})^2 = -21 + (\frac{-10}{2})^2

Simplify and Factor:

x^2 - 10x + 25 = -21 + 25

(x - 5)^2 = 4

Finally, square root both sides using the even roots property:

\sqrt{(x - 5)^2} = \sqrt{4}

x - 5 = ± 2

x = 5 ± 2

x = 3   or   x = 7

You might be interested in
The length of a rectangle is times the width. If the perimeter is 32 inches, what is the width of the rectangle
o-na [289]
Let width be “w", length = “l" and perimeter = p

Then l = 3w-4

Perimeter = 2(w+l)

p = 2(w+3w-4) = 2w+6w-8 = 8w-8

Perimeter is 32…

8w-8 = 32

8w = 32+8

8w = 40

w = 5

l = (3×5)-4 = 11

Check… p = 2(5+11) = 2 × 16 = 32

Ans = length is 11

Hope it helps!
5 0
3 years ago
Read 2 more answers
Simplify the expression using sum or difference identities cos(12)cos(-3)-sin(12)sin(-3)​
katen-ka-za [31]

Answer:

when you simplify the answer is -0.91113026

Step-by-step explanation:

8 0
4 years ago
Read 2 more answers
The quotient of 12 and the opposite of 3 plus the product of the opposite of 14 and 4
Fynjy0 [20]
Putting this into an equation, it would be (12 ÷ -3) + - (14 x 4)
-4 + -56 = -60
4 0
3 years ago
Read 2 more answers
Jane deposits $600 in her new savings account. She consistently deposits the same amount (x) into the account each month. At the
alex41 [277]

Answer:

its b and e

Step-by-step explanation:

i took the test

6 0
3 years ago
Read 2 more answers
A cook places a pan of food on a hot stove and leaves it there. When the food is just about done cooking, which of the following
BaLLatris [955]

Answer:

The pan will be the same Temperature as the stove

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • What is the solution of the equation 2/3 + 5x/3= 9 ?
    9·1 answer
  • Find the equivalent ratio for 32:__=12:24
    11·2 answers
  • 6w-19 + k when<br> w=8 and k = 2
    9·2 answers
  • Solve the following equation for a.
    15·1 answer
  • Please answer 3! Thanks
    10·2 answers
  • How would I solve this?
    12·1 answer
  • BRAINLIEST!!
    12·1 answer
  • find the area of the figure below, composed of a rectangle and semicircle. Round it to the nearest tenth.
    9·1 answer
  • The 5 in this decimal the 3.57 is in the hundredths place. True or False.
    13·2 answers
  • Kevin has a deck of cards. There are 10diamonds, 5 spades, 12 clubs and 3 hearts.A card was chosen at random. What is the
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!