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Free_Kalibri [48]
3 years ago
14

How do I solve for x in a quadratic equation

Mathematics
2 answers:
Ymorist [56]3 years ago
3 0
for the value of x is to factor the quadratic, set each factor equal to zero, and then solve each factor.
AysviL [449]3 years ago
3 0
U add each side and than divide by 2 and that’s will be ur x
You might be interested in
Check My Work According to the National Association of Realtors, it took an average of three weeks to sell a home in 2017. Data
Salsk061 [2.6K]

Complete question :

According to the National Association of Realtors, it took an average of three weeks to sell a home in 2017. Suppose data for the sale of 39 randomly selected homes sold in Greene County, Ohio, in 2017 showed a sample mean of 3.6 weeks with a sample standard deviation of 2 weeks. Conduct a hypothesis test to determine whether the number of weeks until a house sold in Greene County differed from the national average in 2017. Useα = 0.05for the level of significance, and state your conclusion

Answer:

H0 : μ = 3

H1 : μ ≠ 3

Test statistic = 1.897

Pvalue = 0.0653

fail to reject the Null ; Hence, we conclude that their is no significant to accept the claim that number I weeks taken to sell a house differs.

Step-by-step explanation:

Given :

Sample size, n = 40

Sample mean, x = 3.6

Population mean, μ = 3

Standard deviation, s = 2

The hypothesis :

H0 : μ = 3

H1 : μ ≠ 3

The test statistic :

(xbar - μ) ÷ (s/√n)

(3.6 - 3) / (2/√40)

0.6 / 0.3162277

Test statistic = 1.897

Using T test, we can obtain the Pvalue from the Test statistic value obtained :

df = n - 1; 40 - 1 = 39

Pvalue(1.897, 39) = 0.0653

Decison region :

If Pvalue ≤ α ; Reject the null, if otherwise fail to reject the Null.

α = 0.05

Pvalue > α ; We fail to reject the Null ; Hence, we conclude that their is no significant to accept the claim that number I weeks taken to sell a house differs.

7 0
3 years ago
Is 10 times as much as 0.24?
nata0808 [166]
2.4 cause 0.24×10=2.4
if you move the decimal one place to theleft you'll get 2.4

Love Ya!
Frankie
4 0
3 years ago
Can yall help me with this:)
san4es73 [151]

Answer:

x = 7

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Equality Properties

<u>Geometry</u>

  • All angles in a triangle add up to 180°

Step-by-step explanation:

<u>Step 1: Set up Equation</u>

<em>Every angle must add up to 180°.</em>

(6x - 6)° + 54° + 90° = 180°

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. Combine like terms:                    6x + 138 = 180
  2. Isolate <em>x</em> term:                              6x = 42
  3. Isolate <em>x</em>:                                       x = 7
6 0
3 years ago
If m∠ABC = 72°, what is m∠DAB?<br> A) 72° <br> B) 108° <br> C) 144° <br> D) 216°
11111nata11111 [884]
The answer would be B
What you would do is 180-72= 108 degrees
3 0
3 years ago
Read 2 more answers
what is the area of the polygon given below A.) 120 sq units B.) 180 sq units C.) 90 sq units D.) 60 sq units
SashulF [63]

Answer:

D

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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