Answer:
A = 39 m²
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Step-by-step explanation:
<u>Step 1: Identify Variables</u>
Shorter Diagonal d2 = 3m + 3m = 6m
Longer Diagonal d1 = 9m + 4m = 13m
<u>Step 2: Find Area</u>
- Substitute into formula: A = 1/2(13m)(6m)
- Multiplication: A = 1/2(78m²)
- Multiplication: A = 39 m²
Answer:
A. 1
B. -10
Step-by-step explanation:
4th answer because the ratios are not the same. The ratios need to be the same. 1:2 and 2:4 ratio is the same because the fraction 1/2 is the same as 2/4. So, 3:4 ratio is the same as 9:12 because 3/4 is the same as 9/12. However 7:4 ratio or 7/4 is not the same as 4/3. So they are not similar.
The appropriate statistical test for whether the mean rating of guilts are greater for unattractive defendants than for attractive is:
B. 1 tailed t-test.
<h3>What are the hypothesis test?</h3>
At the null hypothesis, it is tested if the mean rating of guilt will not be higher for unattractive defendants than for attractive defendants, that is:

At the alternative hypothesis, it is tested if the rating is greater, that is:

We are comparing the means, hence a t-test is used. We are testing if one is greater than other(not different), hence a 1-tailed test is used, and option B is correct.
More can be learned about hypothesis tests at brainly.com/question/13873630
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