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
iogann1982 [59]
3 years ago
14

Solve -x^2 + 4x +10 = 0 by using the "Solving the square method"

Mathematics
1 answer:
Pavel [41]3 years ago
3 0

Answer:

x =  - 2 +  \sqrt{14}  \:  \: or  \:  \: x =  - 2 -  \sqrt{14}

Step-by-step explanation:

{x}^{2}  - 4x - 10 = 0 \\  {x}^{2}  - 4x = 10 \\  {x}^{2}  - 2(2x) = 10 \\  {x }^{2}  - 2(2x) + 4 = 10 + 4 \\ {(x + 2)}^{2}  = 14 \\ x + 2 =  \sqrt{14}  \:  \:  \:  \: or \:  \:  \: x + 2 =  -  \sqrt{14}

You might be interested in
Find the simple interest on $1500 for 5 years at 3.5%
antoniya [11.8K]

Answer:

$1781.53

Step-by-step explanation:

Simple Interest Rate Formula: A = P(1 + r)ⁿ

Step 1: Define variables

Principle amount <em>P </em>= 1500

Rate <em>r</em> = 0.035

Years <em>n</em> = 5

Step 2: Substitute and Evaluate for A

A = 1500(1 + 0.035)⁵

A = 1500(1.035)⁵

A = 1500(1.18769)

A = 1781.53

3 0
3 years ago
Read 2 more answers
Which is a better buy? 5000 sqft of lawn food for $11.99 or 12500 sqft of lawn food for $19.99? Show proof.
xz_007 [3.2K]
12500 cause 5000 goes into 12500 twice and it would be 24$ for 10000 sqft and then another 6 so 30$ cause 2500 is half of 5000
3 0
3 years ago
Is 4.5 same as 4.50?
Softa [21]

Answer:

Yes

Step-by-step explanation:

0s after all the decimals do not count

4 0
3 years ago
Read 2 more answers
Solve for a r=x(a+b)<br><br><br> Solve for x x/2=-7
Anastaziya [24]

Answer:

a = (r/x) -b

x = -14

Step-by-step explanation:

r=x(a+b)

Divide each side by x

r/x = a+b

Subtract b

r/x  -b = a

x/2=-7

Multiply each side by 2

x/2*2 = -7*2

x = -14

4 0
3 years ago
Read 2 more answers
The population of a colony of bacteria can be modeled by the function P(t) = 19,300(5)^t, where t is the elapsed time
allsm [11]
Answer: root t(5)/19300

Explanation:

P(t) = 19300(5)^t
P-1(t) = root t(5)/19300


4 0
3 years ago
Read 2 more answers
Other questions:
  • What is the surface area of this<br> square pyramid?
    11·1 answer
  • Estimate 412 divided by 92 I NEED THE ANSWER ASP
    12·1 answer
  • an aquarium at sea world is 10ft long, 3ft wide, and is filled with water to a depth of 7ft. water weighs 62.4 pounds per cubic
    6·2 answers
  • Carlita purchased 8 1/2 pints of ice cream for a party. If each guest will be served exactly 1/2 pint of ice cream, what is the
    9·1 answer
  • The graph shows the amount of money Hachi earns at his job in relation to the number of hours he works.
    14·1 answer
  • If 3x -4=-1, what is the value of 12x+3?
    5·1 answer
  • Plzzz help with this on gusssssssyyss
    15·2 answers
  • What is the next term of the geometric sequence?<br> -16/5 ,8, -20,
    12·2 answers
  • (MARKING) How many solutions does this equasion have? -4 - 10n = 8h + 10
    12·2 answers
  • Part A: A graph passes through the points (0, 2), (2, 6), and (3, 12). Does this graph represent a linear function or a non-line
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!